The 20 Best Collagenous Colitis Doctors Near Me in Ann Arbor, MI
Find the Top Collagenous Colitis Experts and Specialists
Taubman Center
Mary Takami is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Takami is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Achalasia, Swallowing Difficulty, Painful Swallowing, Colonoscopy, and Gastrectomy.
Taubman Center
Shanti Eswaran is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Eswaran is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 36 other conditions, according to our data. Her clinical expertise encompasses Irritable Bowel Syndrome (IBS), Diarrhea, Chronic Idiopathic Constipation (CIC), Endoscopy, and Colonoscopy. Dr. Eswaran is board certified in Gastroenterology.
Taubman Center
Beth Manoogian is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Manoogian is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 23 other conditions, according to our data. Her clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Cholangitis, and Colonoscopy.
Briarwood Health Associates
Darashana Punglia is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Punglia is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 35 other conditions, according to our data. Her clinical expertise encompasses Gas Bloat Syndrome, Diarrhea, Trichohepatoenteric Syndrome, Gastrectomy, and Colonoscopy. Dr. Punglia is board certified in Gastroenterology.
East Ann Arbor Ambulatory Surgery & Medical Procedures Center
Tannaz Guivatchian is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Guivatchian is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Familial Colorectal Cancer, DICER1 Syndrome, HER2 Negative Breast Cancer, Colonoscopy, and Endoscopy.
University Hospital
Ammar Hassan is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Hassan is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Visceromegaly, Enlarged Liver, Cirrhosis, Liver Transplant, and Endoscopy.
University Of Michigan Medical Center
Tadd Hiatt is a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Hiatt is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Colonoscopy.
Taubman Center
"Matthew J. DiMagno, MD, AGAF, received his bachelor's degree from Macalester College, a medical degree from the University of Minnesota and training in internal medicine from the University of Michigan. He went on to complete both a fellowship in gastroenterology and a post-doctoral fellowship in experimental pancreatitis at the University of Michigan. After completing fellowship training, Dr. DiMagno joined the faculty 2001 at Michigan, where he is Clinical Professor of Internal Medicine, Division of Gastroenterology. He serves as a medical pancreatologist, director of the Comprehensive Pancreas Program (2018-) and the National Pancreas Foundation (NPF) Center of Excellence for pancreatitis (2022-), GI director of the adult cystic fibrosis program (2014-), and recent director for the general gastroenterology clinic (2014-2022).Dr. DiMagno has an active clinical research program which has received funding from the federal government to support research in acute and chronic pancreatitis.Dr. DiMagno has coauthored 76 peer-reviewed manuscripts, reviews and book chapters. He serves on several editorial boards.Dr. DiMagno has served as Medical Director, The National Pancreas Foundation State Chapter of Michigan (2016-2022), Chair of the American Gastroenterological Association (AGA) Institute Council Pancreatic Disorders Section Committee (2014-16), and Chair of the nominating committee for the AGA Institute Council Pancreatic Disorders Section Committee (2016-19).Dr. DiMagno has participated in and directed numerous national and international continuing medical education programs in gastroenterology. He has also directed local, annual educational events for patients and caregivers (2016-2021), focused on pancreatic disorders. His clinical expertise is recognized by election to the University of Michigan (UofM) Department of Internal Medicine Clinical Excellence Society, entitled, Academiae Laureati Medici (2018), election to the roster of ""Best Doctors"" since 2015, and recognition as one of 10 Gastroenterologists focused on pancreatic disorders & diseases by Becker’s Ambulatory Surgical Center (ASC) Review in 2014.". Dr. Dimagno is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Chronic Pancreatitis, Acute Pancreatitis, Exocrine Pancreatic Insufficiency, Colonoscopy, and Gastrectomy. Dr. Dimagno is board certified in Gastroenterology.
Taubman Center
Dr. Chey received his BA degree from the University of Pennsylvania and medical degree & training in internal medicine at the Emory University School of Medicine. He went on to complete a fellowship in gastroenterology at the University of Michigan. Since completing this fellowship, Dr. Chey has remained at the University of Michigan, where he is H. Marvin Pollard Professor of Gastroenterology, Professor of Nutrition Sciences, and Chief, Division of Gastroenterology & Hepatology. Dr. Chey runs a very active clinical research group which has received funding from federal and private sources. Dr. Chey has authored more than 400 manuscripts, reviews and book chapters yielding an H-index of 50. He is former Co-editor-in-Chief of the American Journal of Gastroenterology (2010-2016) and serves on the editorial boards of several other journals. He serves as a member of the Board of Trustees and in 2026, will become President of the American College of Gastroenterology. He is a member of the Board of Directors of the Rome Foundation and IFFGD. He has participated in and directed numerous national and international continuing medical education programs in gastroenterology, and has been elected to the roster of Best Doctors since 2001 and America's™ Top Doctors since 2009. Dr. Chey has received numerous awards including the Berk-Fise Award for outstanding clinical service from the ACG, the Distinguished Clinician Award from the AGA, Dean’s Outstanding Clinician Award, Dean’s Award for Innovation and Commercialization, and the Healio Disruptive Innovator Award. Dr. Chey is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Diarrhea, Chronic Idiopathic Constipation (CIC), Endoscopy, and Colonoscopy. Dr. Chey is board certified in Internal Medicine and Gastroenterology.
Taubman Center
John Del Valle is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Del Valle is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Colitis, and Colonoscopy. Dr. Del Valle is board certified in Internal Medicine and Gastroenterology.
Taubman Center
Erik-Jan Wamsteker, MD is a Clinical Associate Professor in the Division of Gastroenterology and Hepatology. Dr. Wamsteker earned his medical degree from UMDNJ Rutgers Medical school (New Jersey Medical School). He completed his internal medicine residency at the University of Michigan and Gastroenterology Fellowship where he focused his training in Advanced Endoscopy with a focus in ERCP and EUS. He is board certified in Gastroenterology.Dr. Wamsteker has authored numerous peer-reviewed articles, abstracts, and book chapters. He has served as a councilor of the AGA Institute Council Pancreatic Disorders Section as well as a counselor to the ACG practice parameters committee tasked with clinical guideline development and serves on the Board of the National Pancreas Foundations Michigan Chapter. He is an active faculty member in the training of GI fellows both for the general GI fellowship as well as Advanced Endoscopy Fellowship programs. He runs the monthly Advanced Endoscopy Conference as well as gives didactic lectures to Internal Medicine residents and GI fellows on various topics focused on endoscopic management of pancreatic and biliary disorders as well as endoscopic oncology.Personal Interests:Music history, listening to music especially on vinyl, print making, greyhounds. Dr. Wamsteker is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Neuroma Biliary Tract, Bile Duct Obstruction, Childhood Pancreatitis, Pancreatectomy, and Gastrectomy. Dr. Wamsteker is board certified in Gastroenterology.
University Of Michigan Medical Center
Ryan Stidham is a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Stidham is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Viral Gastroenteritis, Ulcerative Colitis, Colonoscopy, and Endoscopy.
Taubman Center
Eric D. Shah MD MBA FACG is an Associate Professor in the Division of Gastroenterology and Hepatology. Dr. Shah is director of the Michigan Medicine GI Physiology Laboratories. Dr. Shah is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Chronic Idiopathic Constipation (CIC), Irritable Bowel Syndrome (IBS), Bowel Incontinence, Endoscopy, and Colonoscopy. Dr. Shah is board certified in Internal Medicine and Gastroenterology.
Taubman Center
Dr. Kwon joined the Division of Gastroenterology in 2005 and is currently a Clinical Professor. He received his bachelor's degree from Amherst College and his medical degree from UCLA Medical School. He completed his internal medicine residency at Cedars-Sinai Medical Center and his gastroenterology fellowship at Brigham and Women's Hospital (BWH). He also completed his advanced endoscopy fellowship at the combined BWH and Massachusetts General Hospital program. He earned his Master of Science in Clinical Research Design and Statistical Analysis at the University of Michigan. Dr. Kwon is currently the Director of Advanced Endoscopy, Program Director for the Advanced Endoscopy fellowship, and Co-director of the Comprehensive Pancreas Program. He also serves as the Medical Director of the Michigan Chapter of the National Pancreas Foundation. He is a principal investigator in several independently funded research studies and has been an author on over 100 publications, including multiple research studies, national guidelines, and book chapters. He is a sought-after speaker, having served as invited faculty at multiple regional, national and international courses. Dr. Kwon is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Hereditary Pancreatitis, Bile Duct Obstruction, Pancreatic Cancer, Endoscopy, and Lithotripsy. Dr. Kwon is board certified in Gastroenterology.
Taubman Center
Andrew Read is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Read is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Angiodysplasia of the Colon, Tenesmus, Irritable Bowel Syndrome (IBS), Colonoscopy, and Endoscopy.
Taubman Center
Graham Brady is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Brady is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Non-Alcoholic Fatty Liver Disease, Nonalcoholic Steatohepatitis (NASH), Hepatitis, and Macroamylasemia.
Taubman Center
Dr. Joan Chen received her Bachelor’s degree from the Johns Hopkins University and her Medical degree from the Vanderbilt University School of Medicine. She completed her Internal Medicine residency and Gastroenterology fellowship at Northwestern University. After her general GI fellowship, she completed an additional Esophageal fellowship at Northwestern University. She earned a master’s degree in clinical investigation (MSCI) at the Northwestern School of Public Health. Dr. Chen joined the University of Michigan faculty in 2013, where she is the Director of Esophageal Motility since 2017. Her clinical and research interests include swallowing disorders, gastroesophageal reflux disease, eosinophilic esophagitis, and esophageal motility disorders. Dr. Chen works closely with her UM colleagues in the Thoracic Surgery, Ear Nose and Throat, Speech Pathology, Rheumatology, Dermatology Departments, as well as the Behavioral Psychologists and Dietitians in the GI Department. Dr. Chen’s method to patient care often relies on collaborative, multidisciplinary, and patient-centered approaches.Outside of the Institution, Dr. Chen has been invited to speak at national and international conferences. She is an active member of several professional GI organizations including the American Gastroenterological Association, the American Foregut Society, the American Neurogastroenterology and Motility Society, the Rome Foundation, and the American College of Gastroenterology. She is a regular contributor to peer-reviewed publications and book chapters, and she has participated in the development of several recent guidelines for management of esophageal diseases. Dr. Chen enjoys running, cycling, traveling, and reading outside of work. In addition to English, she is fluent in Mandarin, Chinese. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 19 other conditions, according to our data. Her clinical expertise encompasses Achalasia, Esophagitis, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy. Dr. Chen is board certified in Gastroenterology.
Briarwood Medical Group
Dale Mazer is a primary care provider, practicing in Internal Medicine in Ann Arbor, Michigan. Dr. Mazer is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Obesity in Children, Spasticity, Seasonal Affective Disorder (SAD), Obesity, and Intrauterine Device Insertion. Dr. Mazer is board certified in Internal Medicine.
Briarwood Health Associates
Andrea Todisco is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Ann Arbor, Michigan. Dr. Todisco is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Painful Swallowing, Swallowing Difficulty, Gastroesophageal Reflux Disease (GERD), Colonoscopy, and Gastrectomy.
Briarwood Health Associates
Dr. Peter Higgins received his bachelor's degree and medical degrees from Duke University and completed a Ph.D. in molecular cancer biology at Duke. He completed a fellowship in gastroenterology at the University of Michigan in 2004, completed an M.Sc. in Clinical Research Design and Statistical Analysis at the University of Michigan School of Public Health and joined the University of Michigan faculty the same year. Dr. Higgins has previously served as the IBD editor for the American Journal of Gastroenterology, the Director of the Michigan Clinical Trial Support Unit, Director of the GI Division Research Advisory Committee, the co-Director of the Clinical Trials Academies, and the chair of the AGA IMIBD section, He currently serves as the Chair of the National Scientific Advisory Committee of the Crohn's and Colitis Foundation. His research focuses on inflammatory bowel disease, which includes Crohn's disease and ulcerative colitis. He is interested in the molecular mechanisms of intestinal fibrosis, which leads to intestinal blockages and surgery. Dr. Higgins studies the use of photoacoustic catheters to measure intestinal scarring, the use of novel drugs to reverse intestinal scarring, the development of novel anti=inflammatory drugs, and the prevention of colectomy in severe ulcerative colitis. His clinical research includes studies on patient-reported outcomes in IBD, drug trials in IBD, and biomarker-guided therapy in IBD. Dr. Higgins' research interests are complemented by his clinical interest in improving the quality of care of patients with IBD. He has served as a member of the AGA IBD Quality Measures Committee, and has participated in the development of national guidelines for high quality IBD care. Dr. Higgins has received many honors and awards, including the AGA IBD Clinical Research Excellence Award. Dr. Higgins is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Sclerosing Cholangitis, and Colonoscopy. Dr. Higgins is board certified in Gastroenterology.
Last Updated: 04/28/2026


















