Antoinette Saddler, M.D., is a fellowship-trained gastroenterologist specializing in general gastroenterology and management of patients with mild to severe malnutrition. She has experience in treating complex gastrointestinal disorders including short bowel syndrome, celiac disease, inflammatory bowel disease, irritable bowel syndrome, gastrointestinal malignancies, gastrointestinal tract dysmotility and high-output ostomies, as well as the malnutrition associated with these conditions. Dr. Saddler has held positions at the University of Kentucky, MedStar Washington Hospital Center, the University of Virginia School of Medicine, and the George Washington University School of Medicine and Health Sciences. She has also been a private practice gastroenterologist. Her professional activities include regional and national lectures on the management of gastrointestinal disorders associated with malnutrition. She previously served as the director of medical nutrition at the University of Virginia Digestive Health Center, where patients with complex gastrointestinal and nutritional disorders receive care. Dr. Saddler obtained her medical degree at the Case Western Reserve University School of Medicine. She completed her residency training in internal medicine at New York-Presbyterian/Weill Cornell Medical Center followed by fellowship training in gastroenterology at Memorial Sloan Kettering Cancer Center. She pursued additional fellowship training there in clinical nutrition. Dr. Saddler is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Gastroparesis, Chronic Erosive Gastritis, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.

Dr. Jessica D. Korman is a gastroenterologist affiliated with Suburban Hospital. She practices out of Capital Digestive Care’s Metropolitan Gastroenterology Group in Washington, D.C. and Bethesda, Md. Dr. Korman has an expertise in colorectal cancer screening, as well as anal cancer screening and prevention. Dr. Korman earned her undergraduate degree from the University of Rochester and her medical degree from the Mount Sinai School of Medicine, where she conducted research with the division of liver diseases. She completed a residency in internal medicine at Montefiore Medical Center, where she also completed a fellowship in gastroenterology and was recognized by the Leo M. Davidoff Society for Outstanding Achievement in the Teaching of Medical Students. Dr. Korman also earned the Dr. Marcel Zimetbaum Complete Physician Award by the division of gastroenterology at Montefiore Medical Center. Dr. Korman is a member of the American College of Gastroenterology, the American Gastroenterological Association and the American Society for Gastrointestinal Endoscopy. Dr. Korman has been repeatedly named a Top MD in Washingtonian Magazine. Dr. Korman is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Colonic Malakoplakia, Diarrhea, Trichohepatoenteric Syndrome, and Irritable Bowel Syndrome (IBS).

Aline Pishvaian is a Gastroenterologist in Washington, Washington, D.c.. Dr. Pishvaian is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Crohn's Disease, Ulcerative Colitis, Diarrhea, and Trichohepatoenteric Syndrome.

Christopher Duke, MD is a second-generation physician and native Washingtonian. His parents practiced medicine in Washington for four decades. Chris has practiced internal medicine here for 30 years. He attended George Washington University for his undergraduate and medical degrees. He completed Internal Medicine training at Penn State University. Chris practices evidence-based medicine while emphasizing empathy for his patients and their families. He personally knows and refers patients to the many outstanding specialists in Washington. He is excited to team with his patients to optimize their health and enjoyment of life. He has taught medical students at George Washington as an associate professor of medicine. He has been recognized by Washingtonian Magazine as a “Top Doctor” including in 2022. Outside of work, he enjoys traveling with wife Lilian and children Jacqueline and James. He loves attending Notre Dame football games and spoiling his pugs- Mini and Rockne! LinkedIn https://www.linkedin.com/in/christopher-duke-md-1126314. Dr. Duke is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Rabson-Mendenhall Syndrome, Vitamin B12 Deficiency, Subacute Combined Degeneration, and Cellulitis.

Olaya Gutierrez is a Gastroenterologist in Washington, Washington, D.c.. Dr. Gutierrez is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Achalasia, Gastroesophageal Reflux Disease (GERD), Choledocholithiasis, Endoscopy, and Lithotripsy.

Dr. Vera L. Sheen is a Johns Hopkins Community Physician practicing out of Sibley Primary Care located in Sibley Memorial Hospital’s Medical Building in Washington, D.C. She is affiliated with Georgetown University Hospital as well. Dr. Sheen has an expertise in internal medicine. Dr. Sheen earned her medical degree from University of Kentucky College of Medicine. She completed a residency in internal medicine at Barnes-Jewish Hospital. Dr. Sheen is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Vitamin D Deficiency, High Cholesterol, Vitamin B12 Deficiency Anemia, and Folate Deficiency.

Dr. Marta A. Schneider is an internist affiliated with Sibley Memorial Hospital. She has a private practice in Washington, D.C. Dr. Schneider earned her medical degree from George Washington University School of Medicine. She completed a residency in internal medicine at St. Francis Hospital Medical Center. Dr. Schneider is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Rickets, Osteomalacia, Frequent or Urgent Urination, Enlarged Liver, and Ureteroscopy.

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 an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Diverticular Disease, Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, and Endoscopy.

William Condrell is a primary care provider, practicing in Family Medicine in Washington, Washington, D.c.. Dr. Condrell is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Attention Deficit Hyperactivity Disorder (ADHD), Erectile Dysfunction (ED), Persistent Genital Arousal Disorder, and Insomnia.

Dr. David M. Hansen is an internist affiliated with Sibley Memorial Hospital and Georgetown University Hospital. He practices out of Foxhall Internists in Washington, D.C. Dr. Hansen’s clinical interests range from preventive care to long-term management of chronic conditions, such as diabetes, hypertension and heart failure. Dr. Hansen earned his undergraduate degree from Harvard College and his medical degree from Johns Hopkins University School of Medicine. He completed a residency in internal medicine at Stanford University School of Medicine. Dr. Hansen previously served as clinical faculty of Stanford Medical School and practiced at the Stanford-affiliated Menlo Medical Clinic. Dr. Hansen has been named a Top Internist by Washingtonian magazine and Consumers’ Checkbook magazine. He has also been named one of the Best Doctors in America and a Super Doctor by the Washington Post magazine. Dr. Hansen is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Alcoholic Cirrhosis, High Cholesterol, Homocystinuria, and Methylmalonic Acidemia with Homocystinuria.

Dr. Lawrence E. Klein is an internist affiliated with Sibley Memorial Hospital; Johns Hopkins Hospital, where he holds a part-time faculty appointment; and Georgetown University Hospital, where he also holds a faculty appointment. He practices out of Foxhall Internists in Washington, D.C. Dr. Klein completed a joint M.D.-Ph.D. program at Johns Hopkins University School of Medicine, where he was elected into the AOA Medical Honor Society. He completed a residency in internal medicine at Strong Memorial Hospital of the University of Rochester, followed by a fellowship in internal medicine at Johns Hopkins Hospital. Dr. Klein was one of the country’s first Henry J. Kaiser Foundation fellows in internal medicine. He went on to serve as a full-time Johns Hopkins medical faculty member. Dr. Klein previously served as the president of the D.C. Society of Internal Medicine and the governor of the D.C. Chapter of the American College of Physicians. Dr. Klein has been repeatedly named a Top Doctor in Washingtonian magazine and Consumers’ Checkbook magazine, as well as named a Super Doctor in the Washington Post magazine and one of the Best Doctors in America. He was awarded the American College of Physicians John H. Maher Laureate Award in 2001 and inducted as a Master of the American College of Physicians in 2009. Dr. Klein has contributed to numerous publications and presentations, abstracts and posters, and lectures on various topics. Dr. Klein is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Chronic Lymphocytic Leukemia (CLL), Chronic B-Cell Leukemia (CBCL), Richter Syndrome, and Familial Hypertriglyceridemia.

Dr. John A. Dooley is an internist affiliated with Sibley Memorial Hospital and Georgetown University Hospital. He practices out of Foxhall Internists in Washington, D.C. Dr. Dooley earned his undergraduate degree from Harvard University and his medical degree from Columbia University College of Physicians and Surgeons, where he received the Robert Loeb Award for Excellence in Clinical Medicine. He completed a residency in internal medicine at Johns Hopkins University School of Medicine. Dr. Dooley previously practiced general internal medicine at the Veterans Affairs Medical Center. Dr. Dooley has been named a Top Doctor by Consumers’ Checkbook Magazine. Dr. Dooley is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are High Cholesterol, Pyomyositis, Familial Hypertension, and Hypertension.

Dr. Andrew N. Umhau is an internist affiliated with Sibley Memorial Hospital and Georgetown University Hospital. He practices out of Foxhall Internists in Washington, D.C. Dr. Umhau has an expertise in general internal medicine, with clinical interests in adolescent and young adult medicine, medical problems of pregnancy and cross-cultural issues. Dr. Umhau earned his undergraduate degree from Davidson College and his medical degree from Duke University. He completed a residency in internal medicine at Georgetown University, where he became chief resident. Dr. Umhau was named a Super Doctor by the Washington Post and has been named one of the Best Doctors in America. Castle Connolly named him a Top Doctor in the Washington, D.C. and Washington-Baltimore areas in 2012. Dr. Umhau also earned the 2009 Laureate Award by the American College of Physicians, Washington, D.C. chapter. Dr. Umhau is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are High Cholesterol, Recurrent Peripheral Facial Palsy, Facial Paralysis, and Bell's Palsy.

Michael Grady is a primary care provider, practicing in Family Medicine in Washington, Washington, D.c.. Dr. Grady is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Dementia, Chronic Kidney Disease, Hypertension, and Familial Hypertension.

Dr. Amy M. Sweeney is a pediatrician affiliated with Sibley Memorial Hospital and MedStar Georgetown University Hospital. She practices out of Foxhall Pediatrics, located in Washington, D.C. Dr. Sweeney has clinical interests in infant care and development, as well as school and learning problems. Dr. Sweeney earned her medical degree from University at Buffalo School of Medicine. She completed a residency in pediatrics at MedStar Georgetown University Medical Center, where she was chief pediatric resident. Dr. Sweeney has been named a Top Doctor by Washingtonian Magazine and Consumers’ Checkbook magazine. Dr. Sweeney is a fellow of the American Academy of Pediatrics. Dr. Sweeney is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Obesity in Children, Respiratory Syncytial Virus (RSV) Infection, and Diarrhea.

Naveen Gupta is a Gastroenterologist in Bethesda, Maryland. Dr. Gupta is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastrointestinal Bleeding, Gallstones, Choledocholithiasis, Endoscopy, and Gastrectomy.

Nikiya Asamoah-Clark is a Gastroenterologist in Washington, Washington, D.c.. Dr. Asamoah-Clark is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Ulcerative Colitis, Crohn's Disease, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.

Truc Trinh is a Gastroenterologist in Arlington, Virginia. Dr. Trinh is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Familial Adenomatous Polyposis, Indigestion, Crohn's Disease, Endoscopy, and Gastrectomy.

Rachana Potru is a Gastroenterologist in Arlington, Virginia. Dr. Potru is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Viral Gastroenteritis, Colitis, Irritable Bowel Syndrome (IBS), Endoscopy, and Gastrectomy.

Gabriel Herman is a Gastroenterologist in Arlington, Virginia. Dr. Herman is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Adenomatous Polyposis, Hemorrhoids, Turcot Syndrome, Endoscopy, and Colonoscopy.