Fellowship-Trained GI Pathologists
Theodore Chang, MD
(501) 225-1400 Ext: 222
Dr. Theodore Chang serves as a Lean Lab Medical Director at Advanced Pathology Solutions. Dr. Chang completed his undergraduate degree in Biomechanical Engineering at the University of California, San Diego. He received his medical degree from Ohio State University College of Medicine in Columbus. Dr. Chang completed his residency in Anatomic and Clinical Pathology at the University of Oklahoma Health Science Center in Oklahoma City and his fellowship in Gastrointestinal Pathology at Ameripath Institute of GI Pathology and Digestive Disease in Cleveland, Ohio. Dr. Chang joined APS in 2016. Outside of work, he enjoys photography and snowboarding.
Amy Collinsworth, MD
(501) 225-1400 Ext: 243
After completing her undergraduate and master degrees in Cell and Molecular Biology from Louisiana Tech University in Ruston, Dr. Amy Collinsworth earned her medical degree at LSU Health Science Center, New Orleans. She continued on to complete her residency in Anatomic and Clinical Pathology at LSU. Dr. Collinsworth completed a clinical and research fellowship in GI and Hepatic Pathology at University of Florida College of Medicine, Gainesville. She remained there to serve as Clinical Assistant Professor. Her administrative roles included Interim Director of Transfusion Services, and Associate Medical Director of UFHealth Pathology Laboratories. Dr. Collinsworth is a recognized reviewer for Human Pathology and co-authored the chapter "Organ-Specific Autoimmune Diseases" in Henry's Clinical Diagnosis and Management by Laboratory Methods. Dr. Collinsworth also served as an Elected Delegate for Florida in the College of American Pathologists House of Delegates and is a member of the Rodger C. Haggitt GI Pathology Society.
Nancy Davis, MD
(501) 225-1400 Ext: 241
Dr. Nancy Davis earned her undergraduate degree in English Literature at LSU, Baton Rouge, and her medical degree at LSU Health Science Center, New Orleans. She completed her residency in Anatomic and Clinical Pathology at LSU, New Orleans, and University of New Mexico, Albuquerque. There she completed a fellowship in GI and Liver Surgical pathology and served as Assistant Professor in Pathology. Dr. Davis served as GI and Liver pathologist at Ochsner Health System in New Orleans for over 7 years and lead Hepatobiliary pathologist for Ochsner's Abdominal Transplant program, one of the largest liver transplant programs in the U.S. Dr. Davis also received additional specialized training at the Ackerman Academy of Dermatopathology in New York. Prior to joining APS, Dr. Davis served as GI pathologist at Pathology Group of Louisiana in Baton Rouge.
Jennifer Do, MD
(501) 225-1400 Ext: 242
Dr. Jennifer Do recieved her medical degree from the Medical University of South Carolina in Charleston and completed an Anatomic and Clinical Pathology residency at Penrose Hospital in Colorado Springs. She served five years in the Navy as a General Pathologist, ending her time in service as a Lieutenant Commander. Dr. Do then completed the Rodger Haggitt Gastrointestinal and Hepatic Pathology fellowship at the university of Washington in Seattle. She Practiced as a General and GI Pathologist in private practice in El Paso, Texas for seven years. Additionally, she was an Adjunct Clinical Professor at the Paul L Foster School of Medicine and the Chief of Laboratory Medicine at the El Paso Veterans' Administration Medical Center. She participates in Massachusetts General Hospital's Global Health Collabrative, providing volunteer pathology services for the Mbarara University of Science and Technology in Mbarara, Uganda. After 14 years of experience as a pathologist, Dr. Do joined APS in 2017
Sarah Lindley, MD
(501) 225-1400 Ext: 221
Dr. Sarah Lindley joined Advanced Pathology Solutions in 2015. Dr. Lindley, a native of central Arkansas, was excited to join the APS team to build a cutting-edge GI pathology lab in her hometown. She completed her undergraduate degrees in chemistry and biology at the University of Arkansas, and received her medical doctorate at the University of Arkansas for Medical Sciences. Through her work on numerous clinical research studies, Dr. Lindley discovered her love of Pathology, seeing it as a bridge between basic science and human disease. She did her residency in Anatomic and Clinical Pathology at the University of Oklahoma Health Science Center. While there, she was able to hone in on GI pathology as her focus through her research collaborations with OU's nationally renowned pancreaticobiliary surgeons. She completed a GI pathology fellowship at the Digestive Disease Institute in Cleveland, Ohio, under the tutelage of the world-famous GI pathologist Dr. Robert Petras. Dr. Lindley has been published in several peer reviewed journals and has been the key presenter at numerous national pathology conferences. Her current research interest is the role of the gut microbiome in both neoplastic and inflammatory GI disease. She is working to develop a next generation sequencing assay for evaluation of the colonic microbiome in various disease states to be able to clinically apply the basic science advances in this emerging field. In her off-time, Dr. Lindley enjoys outdoor activities in the abundant natural scenery of Arkansas.
Zheng Ping, MD
(501) 225-1400 Ext: 260
Dr. Zheng Ping joined APS in 2019, after completing a Gastrointestinal and Liver Pathology Fellowship at the University of Miami/Jackson Memorial Hospital in Florida. He received his medical degree from Nanjing Medical University, Nanjing, Jiangsu, China. After receiving his medical degree, he then became a research associate at the Department of Neurobiology at the University of South Dakota. After work experience and finishing his medical degree, Dr. Ping then proceeded to receive his masters in Clinical Laboratory Science. Following the completion of his Masters degree, he then completed his Anatomic and Clinical Pathology Residency at the University of Alabama at Birmingham. Dr. Zheng Ping received his medical license in both the state of Alabama and Florida. He also is board certified by the American Board of Pathology for Anatomic and Clinical Pathology and he also received the Education Commission for Foregin Medical Graduates (ECFMG) Certificate. Dr. Ping has also received many honors and awards, such as the Kracke Award for Best Presentation in Anatomic Pathology and the Best Abstract Award at the Annual meeting of Chinese American Pathologists Association. He also has many published manuscripts and abstracts including manuscripts such as Journey of Pathology Informatics and his published abstract include American Journal of Clinical Pathology.
Julianne Purdy, MD
(501) 225-1400 Ext: 243
Dr. Purdy serves as Medical Director of APS. She joined APS in 2019 after 9 years in sub-specialty private practice in Memphis, Tennessee. She earned her undergraduate degree in economics and international Studies with honors at Washington University in St. Louis. She went on to receive her medical degree from the University of Cincinnati College of Medicine in Cincinnati, Ohio in 2005. Subsequently she did her residency training in Anatomic and Clinical Pathology at the University of Michigan, followed by a fellowship in Gastrointestinal and Hepatic Pathology at the University of Michigan under the direction of the renowned Drs. Henry Appelman and Joel Greenson. Dr. Purdy is the author of numerous peer-reviewed journal publications and book chapters in gastrointestinal pathology, including being a co-author of Diagnostic Pathology: Gastrointestinal with Drs. Joel Greenson, Elizabeth Montgomery, and Gregory Lauwers with others. She is also a co-inventor on the patent “Multimodal Spectroscopic Systems and Methods for Classifying Biological Tissue” for a device using optical spectroscopy for early detection of pancreatic cancer. Dr. Purdy has given presentations at the annual United States and Canadian Academy of Pathology meetings, for one of which she received the Rodger C. Haggitt Gastrointestinal Pathology Society award for Best Platform Presentation in 2010. Dr. Purdy is board-certified in Anatomic and Clinical Pathology, and is a member of the Rodger C. Haggitt Gastrointestinal Pathology Society, the United States and Canadian Academy of Pathology, the American Society for Clinical Pathology, and the College of American Pathologists.
Ayaz Ghani, MD
(501) 225-1400 Ext: 248
Dr. Ayaz Ghani received his medical degree from King Edward Medical University, Pakistan. He worked as a postdoctoral associate in the Department of Gastroenterology and Hepatology at Yale University School of Medicine, New Haven, Connecticut. He completed his residency training in Anatomic and Clinical Pathology at Danbury Hospital, Western Connecticut Health Network where he also served as Chief Resident. He completed a fellowship in Oncologic Surgical Pathology at Roswell Park Cancer Institute, University at Buffalo, New York. Then he moved to Miami, Florida where he completed his second fellowship in Gastrointestinal and Hepatic Pathology at the University of Miami, Miller School of Medicine. Dr. Ayaz is board-certified in Anatomic and Clinical Pathology and is a member of United States and Canadian Academy of Pathology (USCAP), College of American Pathologists (CAP) and American Society for Clinical Pathology (ASCP). He also published manuscripts and abstracts in high impact peer reviewed journals including Gastroenterology and Proceedings of the National Academy of Sciences. Outside of work, he enjoys watching movies and hanging out with family and friends.
Uday Shergill, MD
(501) 225-1400 Ext: 264
Dr. Uday Shergill received his medical degree from Gandhi Medical College, India. He worked as a postdoctoral fellow in the Department of Gastroenterology and Hepatology at Mayo Clinic College of Medicine, Rochester, Minnesota and subsequently in Anatomic Pathology R&D at ARUP labs, Salt Lake City, Utah. He completed his residency training in Anatomic and Clinical Pathology at Lenox Hill Hospital, NYC where he also served as Chief Resident. He completed a fellowship in Oncologic Surgical Pathology at Roswell Park Cancer Institute, University at Buffalo, New York followed by a second fellowship in Gastrointestinal and Hepatic Pathology at the University of Miami, Miller School of Medicine. Dr. Shergill is board-certified in Anatomic and Clinical Pathology and is a member of United States and Canadian Academy of Pathology (USCAP) and College of American Pathologists (CAP). His research work on pathogenesis of liver fibrosis has led to numerous publications in high impact peer reviewed journals including Hepatology and Journal of Clinical Investigations amongst others. Outside of work, he enjoys watching movies, reading historical nonfiction and exploring nature.
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