Dr. David L. Fishkin

Manish Singla, MD, specializes in gastroenterology and is board-certified by the American Board of Internal Medicine. He practices at UPMC Western Maryland Primary Care. Dr. Singla received his medical degree from George Washington University School of Medicine and Health Sciences and completed his residency at the Naval Medical Center San Diego, followed by a fellowship at National Capital Consortium — Walter Reed National Military Medical Center. Dr. Singla is rated as a Distinguished provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Crohn's Disease, Viral Gastroenteritis, Irritable Bowel Syndrome (IBS), Endoscopy, and Colonoscopy.

A Washington-area native, Dr. Erica R. Cohen is a highly-accomplished physician. She is a trained Inflammatory Bowel Disease specialist which gives her unique expertise in Crohn's disease, ulcerative colitis, microscopic colitis, and refractory c. difficile colitis infection. In addition, she treats a wide range of concerns such as celiac disease, colon cancer screening, and diverticular disease. Dr. Cohen is rated as a Distinguished provider by MediFind in the treatment of Crohn's Disease. Her top areas of expertise are Diverticular Disease, Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, and Endoscopy.

Dr. Jonathan M. Koff is a gastroenterologist affiliated with Sibley Memorial Hospital and Washington Hospital Center. Dr. Koff practices out of Capital Digestive Care’s Metropolitan Gastroenterology Group, located in Washington, D.C. and Chevy Chase, Md. Dr. Koff has an expertise in esophageal disease and colon cancer detection and screening, in addition to general gastroenterology. Dr. Koff earned his undergraduate degree from Wesleyan University and his medical degree from Boston University School of Medicine. He completed a residency in internal medicine at Walter Reed National Military Medical Center, where he went on to complete a fellowship in gastroenterology. Dr. Koff served in the United States Army for 11 years, working as an internist at the Army clinic in the Pentagon, as a first responder on 9-11 and on a tour in Iraq at the 31st Combat Support Hospital in Mosul. Dr. Koff also went on to direct the Center for Liver Disease and the Inflammatory Bowel Disease Clinic at Walter Reed Army Medical Center, where he served as the director of clinical research in gastroenterology as well. He also completed the first double balloon enteroscopy in the United States Army and in Washington, D.C. Dr. Koff is a member of the American College of Gastroenterology. He is on Sibley Memorial Hospital’s Emergency Room Committee and Internal Medicine Peer Review Committee. Dr. Koff has been named a Top MD by Washingtonian Magazine. Dr. Koff has contributed to various publications and presentation on gastroenterology. Dr. Koff is rated as a Distinguished provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Eosinophilic Colitis, Endoscopy, and Gastrectomy.