Pathologist Team


Dr. Abis picture

Florida
Joined in 1990

Women's Health
Surgical Pathology
GI Pathology
Urologic Pathology

David Abis, MD
President, Palm Beach Pathology PA

Dr. Abis is board-certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. Dr. Abis' areas of special interest include women's health, urologic pathology and gastrointestinal pathology.

After receiving a BS degree from Cornell University, Ithaca, NY, Dr. Abis earned an MD degree in 1985 from Columbia University College of Physicians & Surgeons, New York, NY. Dr. Abis completed his residency in anatomic and clinical pathology at the University of California at San Francisco.

Dr. Abis currently serves as President of Palm Beach Pathology, PA and as staff pathologist at St. Mary's Medical Center and Good Samaritan Medical Center, West Palm Beach, FL. At St. Mary's Medical Center, Dr. Abis serves as Director of Pathology, as well as member of several committees, including Medical Staff Executive Committee, Surgical Quality Assurance Committee, and Trauma Quality Management Committee.

  Publications  |   Back to Top

Dr. Bolton picture

Florida
Joined in 1987

Women's Health
Surgical Pathology
GI Pathology
Urologic Pathology

Thomas A. Bolton, MD
Palm Beach Pathology PA
Medical Director, Palm Beach Pathology

Dr. Bolton is board-certified in anatomic and clinical pathology. He is also licensed by the National Board of Medical Examiners. Dr. Bolton's areas of special interest include immunopathology, urologic pathology, and molecular pathology. He also has additional experience in dermatopathology as it relates to hematologic neoplasms, infectious processes, and immunofluorenscence.

After earning a BS in biology and a BA in chemistry from Florida Atlantic University, Boca Raton, FL, Dr. Bolton earned an MD degree in 1980 from the University of South Florida College of Medicine, Tampa, FL, where he also completed his residency in anatomic and clinical pathology. Following his residency, Dr. Bolton served as clinical associate in General Pathology and Hematology, and later as Assistant Professor of Pathology at the University of South Florida College of Medicine. Dr. Bolton was also Chief of Microbiology and staff pathologist at the H. Lee Moffitt Cancer Center, Tampa, FL.

Dr. Bolton is active in several professional organizations, including Palm Beach County Medical Society, American Society of Microbiology, American Society for Clinical Pathology (ASCP); and also serves as inspector for the College of American Pathologists (CAP).

Dr. Bolton currently serves as the Medical Director of Palm Beach Pathology, and as staff pathologist at several South Florida hospitals, including Good Samaritan Medical Center, Palm Beach Gardens Medical Center, Jupiter Memorial Hospital, Martin Memorial Hospital, and St. Mary's Medical Center, where he is also Chairman of the Infectious Disease Committee and member of the OB/GYN Committee.

  Publications  |   Back to Top

Dr. Bonvicino picture

Colorado
Joined in 2016

Women's Health
Surgical Pathology

Amanda M. Bonvicino, MD
UniPath PC

Dr. Bonvicino is board certified in anatomic and clinical pathology with a subspecialty board certification in cytopathology.

After completing her undergraduate years at the University of Texas at Austin in 2000, Dr. Bonvicino went on to earn her MD degree at Texas A&M Health Science Center in Temple, TX in 2006. She completed her residency in pathology at the San Antonio Uniformed Services Health Education Consortium (SAUSHEC) where she served as Chief Resident and was on the Brooke Army Medical Center House Staff Committee and SAUSHEC Pathology Residency Program Education Committee.

Dr. Bonvicino was a staff pathologist at Landstuhl Regional Medical Center in Landstuhl, Germany where she served as Medical Director of Histology, Blood Services and five area laboratories. Following her time in Germany, Dr. Bonvicino completed her fellowship in Cytopathology at the San Antonio Military Medical Center in Fort Sam Houston, TX in 2014 where she later also served as Chief of Surgical Pathology and Medical Director of the Cytotechnology Program.

Dr. Bonvicino has published numerous cytopathology research studies and is a member of the American Society of Clinical Pathology (ASCP).

  Publications  |   Back to Top

Dr. Cash picture

North Carolina
Joined in 1983

Women's Health
Surgical Pathology
GI Pathology
Urologic Pathology

James B. Cash, MD
President, Eastern Carolina Pathology PA

Dr. Cash is board-certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. He is also board-certified by the National Board of Medical Examiners. Dr. Cash's areas of interest include surgical pathology, women's health, GI pathology and urologic pathology. Dr. Cash, a co-founder and current President of Eastern Carolina Pathology, PA.

After earning a B.A. degree, cum laude, from Vanderbilt University, Nashville, TN, Dr. Cash earned an MD degree in 1977 from the University of Kentucky College of Medicine, Lexington, Kentucky, where he also completed his residency in anatomic and clinical pathology. Following his residency, Dr. Cash completed a fellowship in surgical pathology at Barnes Hospital, Washington University Medical Center, St. Louis, MO. He then returned to the University of Kentucky Medical School as Chief Resident and Instructor in Pathology, and later as Assistant Professor of Pathology.

Dr. Cash is active in a number of professional organizations, including College of American Pathologists (CAP), American Society for Clinical Pathology (ASCP), North Carolina Pathology Society, and the Wilson County Medical Society.

Dr. Cash currently also serves as Laboratory Medical Director of the Heritage Hospital, Tarboro, NC.

  Publications  |   Back to Top

Dr. Chahal picture

Colorado
Joined in 2008

Women's Health
Surgical Pathology
GI Pathology
Urologic Pathology

Shalini Chahal, MD
UniPath PC

Dr. Chahal is board certified in anatomic and clinical pathology. Her areas of interest include gynecologic, urologic, and gastrointestinal pathology, as well as bone & soft tissue pathology.

Dr. Chahal received her medical degree from Lady Hardinge Medical College, University of Delhi, New Delhi, India. She then completed an internship at Kalawati Saran Children’s Hospital and Smt. Sucheta Kripalani Hospital in New Delhi, India. Dr. Chahal completed her residency in anatomic and clinical pathology at the University of Colorado Health Sciences Center, Denver, CO. She has also completed a fellowship in surgical pathology at The Methodist Hospital, Baylor College of Medicine, Texas Medical Center, Houston, TX.

Dr. Chahal also served as Assistant Professor, Department of Pathology, Denver Health Medical Center, Denver, CO. Dr. Chahal is a member of several professional organizations including the College of American Pathologists (CAP), American Society for Clinical Pathology (ASCP), and the Colorado Society of Clinical Pathologists.

Dr. Chahal currently also serves as Chair of the Pathology Department at Presbyterian/St. Luke's Medical Center, Denver, CO.

  Publications  |   Back to Top

Dr. Coulter picture

North Carolina
Joined in 2013

Women's Health
Surgical Pathology

Benjamin L. Coulter, MD
Eastern Carolina Pathology PA

Dr. Coulter is board certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. His areas of interest are cytopathology and surgical pathology.

After earning a BS in microbiology, biochemistry and biological sciences, and a BA in chemistry from North Carolina State University, Dr. Coulter received his MD degree in 2008 from Wake Forest University School of Medicine, Winston-Salem, NC.

Dr. Coulter then completed his residency in anatomic and clinical pathology at the Medical University of South Carolina, Charleston, SC, where he also served as Chief Resident in Anatomic and Clinical Pathology. Dr. Coulter also completed a fellowship in cytopathology at the Medical University of South Carolina.

Dr. Coulter currently also serves as staff pathologist at Wilson Medical Center, Wilson, NC.

  Publications  |   Back to Top

Dr. Heasley picture

Colorado
Joined in 1997

Dermatopathology
Surgical Pathology

Diane D. Heasley, DO
UniPath PC
Director of Dermatopathology

Dr. Heasley is board certified in anatomic and clinical pathology with subspecialty board certification in dermatopathology. Dr. Heasley serves as Director of Dermatopathology.

Dr. Heasley received a BS in biology from Eastern Nazarene College, Boston, MA, and then earned her medical degree in 1984 from Michigan State University College of Osteopathic Medicine, East Lansing, MI. After spending six years as a family practitioner, she entered a residency program in pathology at Grand Rapids Area Medical Education Center of Michigan State University, and completed it at the Albany Medical Center Hospital of the Albany Medical College in Albany, NY.

Dr. Heasley completed a fellowship in dermatopathology at Albany Medical Center Hospital, Albany, NY with Martin C. Mihm, MD, who has been the senior dermatopathologist at Harvard Medical School/Massachusetts General Hospital for over 30 years, and is world-renowned in the field of malignant melanoma.

Dr. Heasley has performed research on basal cell carcinomas, and has published research articles, as well as a book chapter on malignant melanoma. Dr. Heasley is member of several professional organizations including the College of American Pathologists (CAP), American Society for Clinical Pathology (ASCP), and the Colorado Dermatological Society.

  Publications  |   Back to Top

Dr. Hull picture

Colorado
Joined in 2011

Women's Health
Surgical Pathology
GI Pathology

Michael E. Hull, MD
UniPath PC
Medical Director, UniPath Central Laboratories

Dr. Hull is board certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. His primary areas of interest are surgical pathology and gynecologic pathology. Dr. Hull currently serves as Medical Director of UniPath Central Laboratories, and member of its Executive Committee.

After earning a BS degree, magna cum laude, in chemistry from the University of Toledo, Dr. Hull received his MD degree in 2001 from Indiana University School of Medicine, Indianapolis, IN. He completed a residency in anatomic and clinical pathology at Washington University/Barnes-Jewish Hospital, Saint Louis, MO, where he also served as Co-Chief Resident in anatomic pathology. Following residency, Dr. Hull completed a fellowship in cytopathology and a second fellowship in surgical pathology at Washington University/Barnes-Jewish Hospital.

Prior to joining UniPath, Dr. Hull served as Assistant Professor, Department of Pathology and Immunology at Washington University/Barnes-Jewish Hospital. Dr. Hull is a member of the United States and Canadian Academy of Pathology (USCAP), American Society for Clinical Pathology (ASCP), and College of American Pathologists (CAP).

  Publications  |   Back to Top

Dr. Kaneshiro picture

Colorado
Joined in 2011

GI Pathology
Surgical Pathology

David Kaneshiro, MD
UniPath PC
Director of Gastrointestinal Pathology

Dr. Kaneshiro is board certified in anatomic and clinical pathology, and is a Gastrointestinal Fellow. His primary areas of interest are gastrointestinal and hepatobiliary pathology, and surgical pathology. Dr. Kaneshiro serves as Director of Gastrointestinal Pathology.

After earning a BS degree in psychology with a minor in chemistry from the University of Illinois at Urbana/Champaign, Dr. Kaneshiro received his MD degree with honors in 2006 from the University of Illinois at Chicago, School of Medicine. He then completed a residency in anatomic and clinical pathology at The Cleveland Clinic, Cleveland, OH, and a fellowship in gastrointestinal pathology at Caris Life Sciences (now Miraca Life Sciences), Irving, TX.

Dr. Kaneshiro has been involved in several research projects and is a member of several pathology professional organizations including the United States and Canadian Academy of Pathology (USCAP), American Society for Clinical Pathology (ASCP), Ohio Society of Pathology, and Cleveland Society of Pathology.

Dr. Kaneshiro currently also serves as Laboratory Medical Director at Littleton Adventist Hospital, Denver, CO.

  Publications  |   Back to Top

Dr. Kelly picture

Colorado
Joined in 2001

Blood Banking
Surgical Pathology

Sharon Kelly, DO
UniPath PC

Dr. Kelly is board certified in anatomic and clinical pathology, and blood banking/transfusion medicine. She is also board certified by the Colorado State Board of Medical Examiners. Her interests are in surgical pathology, blood blanking and pediatric pathology.

Dr. Kelly received her medical degree from the University of Health Sciences in Kansas City, MO. She completed an internship in family medicine, and her residency in anatomic and clinical pathology at the Medical College of Georgia in Augusta, Georgia. Dr. Kelly went on to complete a fellowship in pediatric pathology at The Children's Hospital in Denver, Colorado. Prior to joining UniPath, Dr. Kelly was Medical Director of Transfusion Medicine Services, and an attending pathologist at The Children's Hospital, Denver, CO.

Dr. Kelly serves on numerous hospital committees, as well as the AABB Pediatric Hemotherapy Committee nationally. Additionally, she serves as the Medical Director of Colorado Committee of Blood Donations and has been an active College of American Pathologists (CAP) inspector.

  Publications  |   Back to Top

Dr. Kotnis picture

Colorado
Joined in 2013

Women's Health
Surgical Pathology

Gregory R. Kotnis, MD
UniPath PC
Medical Director of Immunohistochemistry, UniPath Central Laboratories

Dr. Kotnis is board certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. Dr. Kotnis' subspecialty areas of interest include gynecologic pathology and head and neck pathology.

After earning a BS in biophysics from SUNY at Buffalo, NY, Dr. Kotnis received his MD degree in 2006 from SUNY Upstate Medical University, Syracuse, NY. He subsequently completed his residency in anatomic and clinical pathology at the University of Colorado Hospital, Denver, CO.

Following residency, Dr. Kotnis completed a fellowship in cytopathology at The Cleveland Clinic, Cleveland, OH. Most recently, he served as Associate Pathologist at the Riverside Health System, Newport News, VA.

Dr. Kotnis is a member of the College of American Pathologists (CAP), United States and Canadian Academy of Pathology (USCAP), American Society of Cytopathology, Papanicolaou Society of Cytopathology, and the American Society for Clinical Pathology (ASCP).

Dr. Kotnis currently also serves as Medical Director of Immunohistochemistry at UniPath Central Laboratories, as well as Laboratory Medical Director at Porter Adventist Hospital, Denver, CO.

  Publications  |   Back to Top

Dr. Langston picture

Colorado
Joined in 2015

Dermatopathology
Surgical Pathology

Leila Langston, MD
UniPath PC

Dr. Langston is board certified in anatomic and clinical pathology with subspecialty board certification in dermatopathology. Her areas of interest include dermatopathology and surgical pathology, with special interest in bone and soft tissue pathology.

Dr. Langston earned her MD degree in 1998 from Tehran Azad Medical Sciences University, Tehran, Iran. Dr. Langston completed her residency in surgical and clinical pathology at the University of Colorado Medical Center, Denver, CO.

Following residency, Dr. Langston completed a fellowship in surgical pathology with special interest in bone and soft tissue pathology at UCLA, Los Angeles, CA. She also completed a fellowship in dermatopathology at the University of Texas Medical Branch, Galveston, TX.

Dr. Langston is a member of the College of American Pathologists (CAP), the United States and Canadian Academy of Pathology (USCAP), and the American Society for Clinical Pathology (ASCP).

  Publications  |   Back to Top

Dr. Lewis picture

North Carolina
Joined in 1991

Women's Health
Surgical Pathology
GI Pathology
Urologic Pathology

W. Edward Lewis, MD
Eastern Carolina Pathology PA
Medical Director, Eastern Carolina Pathology

Dr. Lewis is board-certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. He is also board-certified by the National Board of Medical Examiners. His primary areas of interest are surgical pathology, gastrointestinal pathology, women's health and microbiology.

After receiving a BA degree in chemistry from the University of North Carolina at Chapel Hill, Dr. Lewis received his MD degree in 1986 from the Bowman Gray School of Medicine of Wake Forest University, Winston-Salem, NC. He then completed his residency in anatomic and clinical pathology at the University of South Florida College of Medicine, Tampa, FL, where he also served as Chief Resident in Pathology.

Dr. Lewis has been involved in several reserach projects and has received a number of awards. He is also a member of the College of American Pathologists (CAP), American Society for Clinical Pathology (ASCP), United States and Canadian Academy of Pathology (USCAP), and the Wilson County Medical Society.

Dr. Lewis also serves as staff pathologist and Laboratory Medical Director of Wilson Medical Center, Wilson, North Carolina.

  Publications  |   Back to Top

Dr. Mack picture

Colorado
Joined in 2013

Pediatric Pathology
Surgical Pathology

Samantha E. Mack, MD
UniPath PC

Dr. Mack is board certified in anatomic and clinical pathology with subspecialty board certification in pediatric pathology. Her areas of interest are pediatric and perinatal pathology, surgical pathology, and blood/transfusion medicine.

After earning a BA in French and business/finance from Doane College, Dr. Mack received her MD degree in 2007 from the University of Nebraska College of Medicine, Omaha, NE. She subsequently completed her residency in Pathology at the University of Colorado Hospital, Denver, Colorado, where she also served as Chief Resident.

Following residency, Dr. Mack completed a fellowship in pediatric pathology at Boston Children's Hospital, Boston, MA, where she also served as Chief Fellow. She then completed a fellowship in blood banking/transfusion medicine at the University of Colorado Hospital, Denver, CO.

Dr. Mack is a member of the College of American Pathologists (CAP), Society for Pediatric Pathology, and American Society for Clinical Pathology (ASCP).

  Publications  |   Back to Top

Dr. Madsen picture

Colorado
Joined in 2003

Surgical Pathology
GI Pathology
Urologic Pathology

Walter E. Madsen, MD
UniPath PC

Dr. Madsen is board certified in anatomic and clinical pathology. His primary areas of interest are surgical pathology, gastrointestinal pathology, urologic pathology, and immunohistochemistry.

After earning a BA degree in biology from Colorado College, Dr. Madsen attended Saint Louis University School of Medicine, Saint Louis, MO, receiving his MD degree in 1983. He then completed an internship and his residency training in general surgery at the University of Illinois at Chicago and Cook County Hospital. In addition to clinical surgery duties, he performed research on the effect of steroid hormones on sarcoma tumor cell growth as an American Cancer Society Oncology Fellow.

Dr. Madsen completed a residency in anatomic and clinical pathology at the University of Colorado Health Sciences Center, Denver, CO, and a fellowship in surgical pathology at Barnes-Jewish Hospital, Washington University in St. Louis, MO, with Louis P. Dehner, MD.

Dr. Madsen is based at Presbyterian/St. Luke’s Medical Center, Denver, CO, where he is Vice Chairman of the Department of Pathology and the Director of Anatomic Pathology.

  Publications  |   Back to Top

Dr. Manavi picture

North Carolina
Joined in 2013

Hematopathology
Surgical Pathology

Cyrus K. Manavi, MD
Eastern Carolina Pathology PA

Dr. Manavi is board certified in anatomic and clinical pathology with subspecialty board certification in hematology. His areas of subspecialty interest are hematopathology and surgical pathology.

Dr. Manavi received his MD degree in 2006 from The Brody School of Medicine at East Carolina University, Greenville, North Carolina and subsequently completed his residency in anatomic and clinical pathology at Wake Forest University/North Carolina Baptist Hospital (currently Wake Forest Baptist Health), Winston-Salem, NC. Dr. Manavi served for one year as junior faculty/instructor in general surgical pathology at Wake Forest University School of Medicine in the Department of Pathology. He subsequently completed a fellowship in hematopathology and general surgical pathology at Wake Forest University School of Medicine.

Prior to joining ECP, Dr. Manavi has been member of the pathology staff at Molecular Pathology Laboratory Network, Inc., a Tennessee- based regional clinical reference laboratory, specializing in oncology and women's health diagnostic testing services.

Dr. Manavi is a fellow in the American Society for Clinical Pathology (ASCP) and the College of American Pathologists (CAP). He also holds a medical technology certification with the American Society for Clinical Pathology, MT(ASCP).

Dr. Manavi currently also serves as staff pathologist at Wilson Medical Center, Wilson, NC.

  Publications  |   Back to Top

Dr. Mclaughlin picture

Colorado
Joined in 2010

Hematopathology
Surgical Pathology

Cristina Smith McLaughlin, MD
UniPath PC
Director of Hematopathology
Medical Director of Flow Cytometry, UniPath Central Laboratories

Dr. McLaughlin is board certified in anatomic and clinical pathology with subspecialty board certification in hematology.

After earning a BA in history from Reed College, Dr. McLaughlin received her MD degree in 2004 from the Oregon Health & Sciences University School of Medicine in Portland, OR, where she also completed her pathology residency and served as Co-Chief Resident. Dr. McLaughlin completed a surgical pathology fellowship at The Mayo Clinic in Rochester, MN; and then returned to Oregon to complete a fellowship in hematopathology at the Oregon Health & Sciences University School of Medicine.

Dr. McLaughlin has been involved in several research projects, publications and presentations in pathology. She has also been the recipient of a number of honors and rewards, including American Society of Hematology Scholar, the Alma B. Sneeden Pathology Award, and Collegiate All-American in Women's Rugby while attending Reed College.

Dr. McLaughlin is a member of several professional societies including the College of American Pathologists (CAP), American Society for Clinical Pathology (ASCP), United States and Canadian Academy of Pathology (USCAP), and the American Society of Cytopathologists. She has also served as CAP junior inspector.

Dr. McLaughlin is staff pathologist at several Denver area hospitals including Littleton, Parker and Porter Adventist Hospitals, as well as Presbyterian/St. Luke's Hospital P/SL), where she is part of the medical team that supports P/SL's bone marrow transplant center.

  Publications  |   Back to Top

Dr. Meier picture

Colorado
Joined in 2014

Dermatopathology
Surgical Pathology

Melissa Meier, MD
UniPath PC

Dr. Meier is board certified in anatomic and clinical pathology with subspecialty board certification in dermatopathology. Her areas of interest are dermato- pathology and surgical pathology.

After earning a BA degree in chemistry from the University of Illinois at Chicago, Dr. Meier earned her MD degree in 2007 also from the University of Illinois at Chicago. During that time, she completed a one year student fellowship at the University of Pennsylvania Hospital, Philadelphia, PA, functioning as a junior resident. Dr. Meier then completed her residency in anatomic and clinical pathology at the University of Iowa Hospitals and Clinics, Iowa City, IA.

Following residency, Dr. Meier completed a fellowship in surgical pathology at the University of Iowa Hospitals and Clinics, Iowa City, IA, followed by a fellowship in dermatopathology at the University of California at San Francisco.

Dr. Meier is a member of the College of American Pathologists (CAP) and has participated in laboratory inspections. She has also served as manuscript reviewer for the International Journal of Dermatology and the Journal of Cutaneous Pathology.

  Publications  |   Back to Top

Dr. Mengshol picture

Colorado
Joined in 2007

GI Pathology
Pediatric Pathology

Sarah Culkin Mengshol, MD
UniPath PC
Director of Pediatric & Perinatal Pathology

Dr. Mengshol is board certified in anatomic pathology with subspecialty board certification in pediatric pathology. Her interests include perinatal and pediatric pathology, and pathology of the gastrointestinal tract and liver. Dr. Mengshol serves as Director of Pediatric & Perinatal Pathology.

After earning a BA degree, magna cum laude, in biochemistry & molecular biology from Hamilton College, New York, Dr. Mengshol earned her MD degree in 1999 from the Dartmouth Medical School, Hanover, NH. At medical school, she was elected into the Mosenthal Surgical Society and was elected to Alpha Omega Alpha in her senior year. After graduation, Dr. Mengshol was an intern in OBGYN at Dartmouth Hitchcock Medical Center and worked at Dartmouth Medical School as a research associate in pre-doctoral education. Dr. Mengshol received her training in anatomic pathology at Dartmouth Hitchcock Medical Center in Lebanon, NH, and at the University of Colorado Health Sciences Center in Denver, CO.

Dr. Mengshol completed fellowship training in pediatric pathology at The Children’s Hospital/University of Colorado Health Sciences Center in Denver, CO in 2005. After her fellowship, Dr. Mengshol served as instructor in pediatric pathology at the University of Colorado Health Sciences Center/The Children’s Hospital, Department of Pathology, Denver, CO for two years.

During her career, Dr. Mengshol has received multiple awards and has authored numerous research articles and publications. She is a member of the College of American Pathologists (CAP), United States and Canadian Academy of Pathology (USCAP), and Society of Pediatric Pathologists.

Dr. Mengshol is based at Rocky Mountain Hospital for Children and Presbyterian/ Saint Luke's Medical Center, where she serves as Vice Chair of Pathology.

  Publications  |   Back to Top

Dr. Nguyen picture

Colorado
Joined in 2013

Hematopathology
Surgical Pathology

Steve Nguyen, MD
UniPath PC

Dr. Nguyen is board certified in anatomic and clinical pathology with subspecialty board certification in hematology. His areas of interest are hematopathology and surgical pathology.

After earning a BS in genetics from the University of Wisconsin, Madison, Dr. Nguyen received his MD degree in 2008 from the University of Wisconsin School of Medicine & Public Health, Madison, WI.

Dr. Nguyen completed his residency in anatomic and clinical pathology as well as a fellowship in hematopathology at the University of Rochester Medical Center, Rochester, NY.

Dr. Nguyen is a member of the College of American Pathologists (CAP) and the American Society for Clinical Pathology (ASCP).

  Publications  |   Back to Top

Dr. Olivere picture

Colorado
Joined in 2004

Dermatopathology
Surgical Pathology

Joseph W. Olivere, MD
President, UniPath PC

Dr. Olivere is board certified in anatomic and clinical pathology with an additional subspecialty board certification in dermatopathology. Dr. Olivere also serves as President of UniPath PC.

After earning a BS degree in zoology from the University of Florida, Dr. Olivere earned his MD degree in 1994 from the University of Tennessee Health Sciences Center in Memphis, TN. He then completed a clinical internship at Brooke Army Medical Center (BAMC) in San Antonio, TX, followed by his residency in anatomic and clinical pathology in the combined Wilford Hall Medical Center (WHMC) and BAMC program in San Antonio, TX. Dr. Olivere served as Chief of Anatomic Pathology and Medical Director of Microbiology Outpatient Clinic Laboratories at Darnall Army Community Hospital in Fort Hood, TX from 1999 to 2003. Dr. Olivere completed a fellowship in dermatopathology at Johns Hopkins Medical Institutions in Baltimore, MD.

Dr. Olivere is actively involved in the College of American Pathologists (CAP) and the American Society of Dermatopathology. Dr. Olivere has received multiple awards and has authored numerous research articles and publications in the field of dermatopathology.

  Publications  |   Back to Top

Dr. Pashe's picture

Colorado
Joined in 2016

Women's Health
Surgical Pathology

Lezlee Pasche, MD
UniPath PC

Dr. Pasche is board certified in clinical and anatomic pathology with subspecialty board certification in cytopathology.

Dr. Pasche earned her medical degree from University of New Mexico School of Medicine in Albuquerque, New Mexico in 2007. She completed a residency in clinical and anatomic pathology at Stanford University in Stanford, CA where she also served as Chief Resident. She went on to complete two fellowships at MD Anderson Cancer Center Houston, TX in cytopathology and surgical pathology.

Dr. Pasche is a member of numerous medical societies including the American Society for Clinical Pathology, the Arizona, California, and Texas Societies of Pathologists, the College of American Pathologists, and the American Society of Cytopathology. She also currently serves in the House of Delegates Committee for College of American Pathologists. Dr. Pasche is also a member of the College of American Pathologists (CAP) and the American Society for Clinical Pathology (ASCP).

  Publications  |   Back to Top

Dr. Phillips picture

Florida
Joined in 1991

Women's Health
Surgical Pathology
GI Pathology
Urologic Pathology

Mark G. Phillips, MD
Palm Beach Pathology PA

Dr. Phillips is board-certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. His special interests include women's health, fine needle aspirations, and breast pathology.

After earning a BA degree in biology from Eckerd College, St. Petersburg, Florida and an MS degree in biomedical sciences from Long Island University, NY, Dr. Phillips earned an MD degree in 1986 from the Royal College of Surgeons, Dublin, Ireland. He then completed a residency in anatomic and clinical pathology at Mount Sinai Medical Center, Miami Beach, FL where he also served as Chief Resident.

Dr. Phillips then went on to complete a fellowship in pathology at University of Florida College of Medicine, Gainesville, FL; and a subspecialty fellowship in breast pathology under Dr. David Page at Vanderbilt University Medical Center, Nashville, TN.

Dr. Phillips is currently member of the pathology medical staff at three South Florida hospitals, including Good Samaritan Medical Center, where he is also Medical Director, St. Mary's Medical Center, and Palm Beach Gardens Medical Center.

  Publications  |   Back to Top

Dr. Ryan picture

Colorado
Joined in 2013

Nephropathology
Surgical Pathology

Margaret S. Ryan, MD
UniPath PC
Director of Nephropathology

Dr. Ryan is board certified in anatomic pathology and is a Renal Fellow. Her areas of focus are renal pathology and surgical pathology. Dr. Ryan also serves as Director of Nephropathology.

After earning a BA in German from Oberlin College, Dr. Ryan received her MD degree in 2008 from The Ohio State University College of Medicine, Columbus, OH. She subsequently completed her residency in pathology at the University of Colorado Health Sciences Center, Denver, CO. Following residency, Dr. Ryan completed a fellowship in renal/transplant pathology at The Ohio State University College of Medicine, Columbus, OH.

Dr. Ryan is a member of the College of American Pathologists (CAP) and the United States and Canadian Academy of Pathology (USCAP). She also serves as staff pathologist at Presbyterian/St. Luke's Medical Center, Denver, CO where she is part of the medical team that supports the kidney transplant center.

  Publications  |   Back to Top

Dr. Sara picture

Florida
Joined in 1991

Women's Health
Surgical Pathology
GI Pathology
Urologic Pathology

Alan S. Sara, MD
Palm Beach Pathology PA

Dr. Sara is board-certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. Dr. Sara has special interests in women's health, gastrointestinal pathology and urologic pathology.

Dr. Sara earned his MD degree in 1982 from Damascus University Faculty of Medicine, Damascus, Syria. After a year as a general practicioner at Tuscon General Hospital, Tuscon, AZ, he completed a residency in anatomic and clinical pathology at the University of South Florida College of Medicine Affiliated Hospitals, Tampa, FL.

Dr. Sara went on to complete a fellowship in surgical pathology, cytology & fine needle aspiration at the University of Texas MD Anderson Cancer Center, Houston, TX. Following his fellowship, Dr. Sara served as Assistant Professor of Pathology at the University of Miami School of Medicine, Miami, FL.

Dr. Sara is member of several professional organizations, including College of American Pathologists (CAP) and American Society for Clinical Pathology (ASCP). Dr. Sara currently also serves as member of the pathology medical staff of Palm Beach Gardens Medical Center, Palm Beach Gardens, FL.

  Publications  |   Back to Top

Dr. Sscheele picture

Colorado
Joined in 1990

Surgical Pathology

Paul M. Scheele, Jr., MD
UniPath PC

Dr. Scheele is board certified in anatomic and clinical pathology. His areas of interest are primarily surgical pathology and fine needle aspiration.

After completing a BS degree in aeronautical and astronautical engineering from Purdue University, Dr. Scheele earned his MD degree in 1985 from the Saint Louis University School of Medicine, St. Louis, MO. He then completed an internship and residency program in pathology at the University of Cincinnati Medical Center, Cincinnati, OH. He went on to complete a fellowship in anatomic pathology in 1990 at the University of Texas MD Anderson Cancer Center in Houston, TX.

Dr. Scheele is an active member of many local and national professional organizations such as the American Society for Clinical Pathology, Colorado Medical Society, College of American Pathologists (CAP), and the American Medical Association. He has published numerous articles on various tumor types including breast pathology and gynecologic oncology.

Dr. Scheele also serves as member of the pathology medical staff at Medical Center of Aurora and North Suburban Medical Center in Denver, CO.

  Publications  |   Back to Top

Dr. Signorelli picture

Colorado
Joined in 2015

Clinical Pathology

Heather N. Signorelli, DO
UniPath PC

Dr. Signorelli is board certified in anatomic and clinical pathology. Her interests include clinical chemistry with emphasis on quality improvement and test utilization. Dr. Signorelli's primary focus is to support the clinical laboratory activities of the various hospitals that UniPath serves.

After earning a BS in biochemistry and molecular biology from the University of California at Santa Cruz, Dr. Signorelli received her medical degree in 2010 from Touro Osteopathic Medical University, Vallejo, CA. She subsequently completed her residency in anatomic and clinical pathology at the University of Colorado Anschultz Medical Campus, Denver, CO, followed by a felllowship in clinical chemistry at the University of Utah/ARUP Laboratories, Salt Lake City, UT.

Dr. Signorelli is actively involved with the College of American Pathologists (CAP) and the American Society for Clinical Pathology (ASCP).

  Publications  |   Back to Top

Dr. Ssmall picture

Colorado
Joined in 1998

Surgical Pathology
Women's Health
Microbiology

James M. Small, MD, PhD
UniPath PC

Dr. Small is board certified in anatomic and clinical pathology, and the subspecialty of medical microbiology. Dr. Small has extensive diagnostic experience in cytopathology and women’s health testing.

After graduating with a BA degree, summa cum laude, in chemistry from Colorado College, Dr. Small attended the Duke University Medical Center’s Medical Scientist Training Program, graduating with an MD and PhD in medical mycology in 1983. He completed his pathology residency at the University of Utah School of Medicine, Salt Lake City, Utah. Dr. Small has served as Medical Director for two Colorado hospitals and as Vice Chairman, Department of Pathology for Presbyterian/St. Luke's Medical Center, Denver, CO.

Dr. Small is active in several professional organizations including being a past President of the Colorado Society of Clinical Pathologists, and member of the College of American Pathologists (CAP), the Gynecologic Oncology Group, as well as various advisory committees. Dr. Small has also served as a Study Pathologist for several Gynecologic Oncology Group clinical trials.

Dr. Small is staff pathologist at Littleton, Parker, and Porter Adventist Hospitals in Denver, CO. At Porter Adventist Hospital, he also serves as Director of Pathology.

  Publications  |   Back to Top

Dr. Smith picture

North Carolina
Joined in 2015

Hematopathology
Women's Health
Surgical Pathology

George Drennan Smith, MD
Eastern Carolina Pathology PA

Dr. Smith is board certified in anatomic and clinical pathology as well as subspecialty boarded in cytopathology and hematology.

After earning a BA degree from the University of Texas at Austin, Dr. Smith earned his MD degree in 2009 from the American University of the Caribbean School of Medicine. He then completed his residency in anatomic and clinical pathology at the Brody School of Medicine at East Carolina University where he also served as Chief Resident. Following his residency, Dr. Smith completed two fellowships, in cytopathology and hematopathology, at the University of Arkansas for Medical Sciences.

Dr. Smith is a member of several professional organizations including the College of American Pathologists (CAP), American Society of Clinical Pathology (ASCP), American Society of Cytopathology, United States and Canadian Academy of Pathology (USCAP) and Southern Medical Association.

  Publications  |   Back to Top

Dr. Sotelo picture

Colorado
Joined in 2004

Surgical Pathology
Urologic Pathology
GI Pathology
Pediatric Pathology

Andrea Kathleen Sotelo, MD
UniPath PC

Dr. Sotelo is board certified in anatomic pathology with subspecialty board certification in pediatric pathology. Dr. Sotelo's areas of interest include surgical, urologic, gastrointestinal, perinatal/placental and pediatric pathology.

After earning a BA degree in molecular, cellular and developmental biology from the University of Colorado at Boulder, Dr. Sotelo received her MD degree in 1998 from the University of Colorado Health Sciences Center in Denver, CO.

Dr. Sotelo then continued her medical training at Barnes-Jewish Hospital, Washington University in St. Louis, MO, where she completed an internship in OB/GYN, a residency in anatomic pathology, and a fellowship in surgical pathology. During that time, she participated in a number of research projects and published several journal articles. Dr. Sotelo also completed a fellowship in pediatric pathology at the Saint Louis University School of Medicine, St. Louis, MO.

Dr. Sotelo also serves as member of the pathology medical staff at Presbyterian/ St. Luke's Medical Center, Denver, CO.

  Publications  |   Back to Top

Dr. Xu picture

Colorado
Joined in 2016

Hematopathology
Surgical Pathology

Gang Xu, MD, PhD
UniPath PC

Dr. Xu is board certified in anatomic and clinical pathology with subspecialty board certification in hematology.

Dr. Xu earned his medical degree in 1993 from Beijing Medical University in China, and subsequently a PhD in pathology in 2000 from Wayne State University in Detroit, MI. He went on to complete his pathology residency at the University of Illinois Medical Center in Chicago, IL where he served as Chief Resident. Dr. Xu completed a fellowship in hematopathology at the Oregon Health & Sciences University School of Medicine.

In addition to participating in an extensive list of research projects, Dr. Xu has presented his publications and abstracts at conferences across the world including the International Conference on Malignant Lymphoma in Lugano, Switzerland in 2015 and the International Hematologic Malignancies Conference in Guangzhou, China in 2016.

Dr. Xu is a member of several professional societies including the College of American Pathologists (CAP), American Society for Clinical Pathology (ASCP), United States and Canadian Academy of Pathology (USCAP), and the American Society of Hematology.

  Publications  |   Back to Top

Dr.Zhang picture

Florida
Joined in 2000

Hematopathology
Surgical Pathology
GI Pathology

Tao Zhang, MD, PhD
Palm Beach Pathology PA

Dr. Zhang is board-certified in anatomic and clinical pathology with subspecialty board certification in cytopathology. Dr. Zhang also has special interest in surgical pathology and gastrointestinal pathology.

Dr. Zhang earned an MD degree in 1985 from Zhejiang Medical University, Hangzhou, China. He then went on to complete a PhD in peptide biochemistry from the University of Shizuoka, Shizuoka, Japan.

Dr. Zhang held several instructor positions at the Department of Surgery of the University of Texas Medical Branch, Galveston, TX. He complete a residency in anatomic and clinical pathology at Barnes-Jewish Hospital of the Washington University Medical Center, St. Louis, MO. Following his residency, Dr. Zhang completed a fellowship in hematopathology at Indiana University Medical Center, Indianapolis, IN.

Dr. Zhang is member of the pathology medical staff at Good Samaritan Medical Center and St. Mary's Medical Center, West Palm Beach, Florida, where he is also member of the Institutional Review Board.

  Publications  |   Back to Top

Dr. Zheng picture

Colorado
Joined in 2012

Hematopathology
Surgical Pathology

Rui Zheng, MD, PhD
UniPath PC

Dr. Zheng is board certified in anatomic and clinical pathology with subspecialty board certification in hematology. Her primary areas of interest are hematopathology and surgical pathology. Dr. Zheng is based at Presbyterian/St. Luke's Hospital, Denver, Colorado.

Dr. Zheng received an MD degree in 1993 and a PhD degree in 1999 from Beijing Medical University (currently Peking University Health Science Center) in Beijing, China. She then served as a Post-doctoral Research Fellow and subsequently as a Research Associate at the Sidney Kimmel Comprehensive Cancer Center of The Johns Hopkins School of Medicine, Baltimore, MD.

Dr. Zheng completed her residency in anatomic and clinical pathology at The Johns Hopkins School of Medicine, Baltimore, MD. She then completed a fellowship in hematopathology also at The Johns Hopkins School of Medicine with Michael J. Borowitz, MD, Professor and Director of Division of Hematopathology.

Dr. Zheng has received multiple honors and awards both in China and while at Johns Hopkins School of Medicine, and has been involved in numerous research projects. Dr. Zheng is a member of the College of American Pathologists (CAP) and United States and Canadian Academy of Pathology (USCAP).

  Publications  |   Back to Top

Doctoral Scientists
Dr. Payne picture

Colorado
Joined in 2009

Molecular Pathology

Deborah "Debs" Payne, PhD
Vice President of Molecular Services

Dr. Payne serves as Vice President of Molecular Services. Prior joining in 2009, she served as Director of the Molecular Diagnostic Laboratory of the University of Texas Southwestern Medical Center in Dallas, TX where she was also Associate Professor of Pathology. She was also Director and a founding member of the Division of Molecular Diagnostics in the Department of Pathology at the University of Texas Medical Branch. Dr. Payne received her PhD in microbiology and immunology from the University of Texas Medical Branch in Galveston, TX; and performed part of her post-doctoral training at the Johnson Space Center in Houston, TX.

Dr. Payne is nationally recognized in molecular diagnostics, is an active speaker, well published and active member of numerous committees and industry organizations. She has held offices as the Chair of the Training and Education Committee for the Association of Molecular Pathology, as Chair of the Molecular Pathology division (2002-2003) for the American Association for Clinical Chemistry (AACC), as the Co-Chair for the NACB Laboratory Practice Guidelines Committee on Pharmacogenetics, as the only U.S. member is on the Committee for Molecular Diagnostics for the International Federation for Clinical Chemistry (IFCC), and as member of the Board of Directors for the American Board of Clinical Chemistry. Dr. Payne is also a member of the Center for Disease Control (CDC) committee on reference materials, an advisor for the Clinical Laboratory Standards Institute (CLSI), and a member of the Board of Directors for the American Board of Clinical Chemistry (ABCC). Dr. Payne also served as a voting member for the Molecular and Clinical Genetics Devices Panel of the Medical Devices Advisory Committee of the Food and Drug Administration (FDA).

Dr. Payne has authored or co-authored several book chapters, 55 manuscripts, and is on the editorial board for LabMedicine. She is certified as a clinical laboratory technologist in Molecular Biology MB(ASCP), and holds a Diplomate in Laboratory Management DLM(ASCP). She is also a fellow of the National Academy of Clinical Biochemistry (FACB), and is board certified by the American Board of Clinical Chemistry in Molecular Diagnostics (DABCC) and by the American Board of Medical Microbiology (DABCC).

  Publications  |   Back to Top