The 20 Best Diarrhea Doctors Near Me in Williamsport, PA
Find the Top Diarrhea Experts and Specialists
UPMC Susquehanna Health, Digestive Disease Center
Richard Kenney, DO, specializes in gastroenterology and is board-certified by the American Board of Internal Medicine. He practices at UPMC Somerset and the Digestive Disease Center at UPMC Williamsport. Dr. Kenney received his medical degree from Midwestern University Chicago College of Osteopathic Medicine and completed his residency at Lehigh Valley Hospital, followed by a fellowship at the University of Illinois College of Medicine at Chicago. Dr. Kenney is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 62 other conditions, according to our data. His clinical expertise encompasses Acute Pancreatitis, Gastroesophageal Reflux Disease (GERD), Colitis, Gastrectomy, and Endoscopy. Dr. Kenney is board certified in American Board Of Internal Medicine. Dr. Kenney is currently accepting new patients.
Susquehanna Health Digestive Disease Center
David Pinn, MD, specializes in gastroenterology and is board-certified by the American Board of Internal Medicine. He is affiliated with UPMC Williamsport. Dr. Pinn received his medical degree from Yeshiva University Albert Einstein College of Medicine and completed his residency at Icahn School of Medicine at Mount Sinai, followed by a fellowship at Albert Einstein College of Medicine. Dr. Pinn is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Necrotizing Enterocolitis, Pseudomembranous Colitis, Bacterial Gastroenteritis, Gastrectomy, and Endoscopy. Dr. Pinn is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine.
UPMC Williamsport
Saadullah Khan is a Gastroenterologist practicing medicine in Williamsport, Pennsylvania. Dr. Khan is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Angiodysplasia of the Colon, Trichohepatoenteric Syndrome, Diarrhea, Endoscopy, and Gastrectomy.
Susquehanna Health Family Medicine At Montoursville
Donna Mullarkey, MD, specializes in geriatric medicine and is board-certified in family medicine by the American Board of Family Medicine. She is affiliated with UPMC Williamsport and UPMC Muncy. Dr. Mullarkey completed her residency at Northern Light Eastern Maine Medical Center and medical degree from Mayo Clinic College of Medicine and Science. Dr. Mullarkey is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 13 other conditions, according to our data. Her clinical expertise encompasses Chronic Kidney Disease, Breast Cancer, Hyperlipidemia Type 3, and Gitelman Syndrome. Dr. Mullarkey is board certified in American Board Of Family Medicine.
Geisinger Gastroenterology/Endoscopy
Dr. Burns is a board-certified and fellowship-trained adult and pediatric gastroenterologist. His clinical interests include general adult and pediatric gastroenterology. Dr. Burns attended Oral Roberts University, where he received his medical degree, and completed his residencies in pediatrics & internal medicine at Geisinger Medical Center. He went on to complete his fellowships in adult and pediatric gastroenterology at Texas A&M University, Scott & White Hospital at University Medical Campus, Temple, TX. Dr. Burns is certified by the American Board of Internal Medicine in adult gastroenterology and by the American Board of Pediatrics in pediatric gastroenterology. Dr. Burns is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Familial Adenomatous Polyposis, Gardner Syndrome, Endoscopy, and Gastrectomy. Dr. Burns is board certified in The American Board Of Internal Medicine In Adult Gastroenterology And By The American Board Of Pediatrics In Pediatric Gastroenterology.
Geisinger Gastroenterology/Endoscopy
Marika Bergenstock is a Gastroenterologist practicing medicine in Montoursville, Pennsylvania. Dr. Bergenstock is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Diarrhea, Lactose Intolerance, Tropical Sprue, and Trichohepatoenteric Syndrome. Dr. Bergenstock is currently accepting new patients.
Geisinger Montoursville - Gastroenterology
Robert Purcell, MD, is a board-certified and fellowship-trained gastroenterologist, also known as a GI doctor. Dr. Purcell has a special interest in endoscopic retrograde cholangiopancreatography (ERCP), a method to diagnose and treat liver, gallbladder, pancreas and bile duct diseases, and general gastroenterology.|Dr. Purcell earned his medical degree from New York Medical College. He completed his residency in internal medicine at Danbury Hospital and his fellowship in gastroenterology at Bridgeport Hospital, both in Connecticut.|Dr. Purcell is certified by the American Board of Internal Medicine in gastroenterology. Dr. Purcell is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Morning Sickness, Crohn's Disease, Gastrectomy, and Colonoscopy. Dr. Purcell is board certified in The American Board Of Internal Medicine In Gastroenterology.
Geisinger Gastroenterology/Endoscopy
Claire Southern is a Gastroenterologist practicing medicine in Montoursville, Pennsylvania. She has been practicing medicine for over 17 years. Dr. Southern is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Sepsis, Acute Pancreatitis, Familial Adenomatous Polyposis, Childhood Pancreatitis, and Gastrostomy. Dr. Southern is currently accepting new patients.
Divine Providence Hospital Of The Sisters Of Christian Charity
William Bartlow is a primary care provider, practicing in Family Medicine in Williamsport, Pennsylvania. Dr. Bartlow is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Prothrombin Deficiency, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.
UPMC Williamsport
Puneet Basi is a Gastroenterologist practicing medicine in Williamsport, Pennsylvania. Dr. Basi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 29 other conditions, according to our data. His clinical expertise encompasses Hemorrhoids, Angiodysplasia of the Colon, Familial Adenomatous Polyposis, Gastrectomy, and Colonoscopy.
UPMC Williamsport
Qasim Mahmood is a Pediatrics provider practicing medicine in Williamsport, Pennsylvania. Dr. Mahmood is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Obesity in Children, Developmental Dysphasia Familial, Umbilical Hernia, and Croup.
UPMC Williamsport Emergency Department
James Freeman, MD, specializes in emergency medicine and is board-certified in family medicine by the American Board of Family Medicine. He is affiliated with UPMC Williamsport. Dr. Freeman received his medical degree from Thomas Jefferson University Sidney Kimmel Medical College and completed his residency at UPMC in Central Pa. Dr. Freeman is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Anemia, Headache, Labyrinthitis, and Familial Neurocardiogenic Syncope. Dr. Freeman is board certified in American Board Of Family Medicine.
Susquehanna Physician Services
Thomas Wallace is a primary care provider, practicing in Family Medicine in Williamsport, Pennsylvania. Dr. Wallace is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Unstable Angina, Lung Nodules, Familial Colorectal Cancer, and Colorectal Cancer.
UPMC Digestive Health Care
Vivek Kumar, MD, specializes in gastroenterology and is certified by the American Board of Internal Medicine. He practices at UPMC Susquehanna Health Digestive Disease Center and is affiliated with UPMC Muncy and UPMC Williamsport. He completed his medical degree at Delhi University Maulana Azad Medical College. Dr. Kumar is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Acute Pancreatitis, Hereditary Pancreatitis, Chronic Erosive Gastritis, Endoscopy, and Gastrectomy. Dr. Kumar is board certified in American Board Of Internal Medicine. Dr. Kumar is currently accepting new patients.
UPMC Digestive Health Care
Stacy Prall, DO, specializes in gastroenterology and is certified in gastroenterology by the American Board of Internal Medicine. She practices in Lewisburg, and at UPMC Williamsport, and UPMC Muncy. She completed her medical degree at the University of New England College of Osteopathic Medicine and residency and fellowship at Geisinger Medical Center. Dr. Prall is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Gas Bloat Syndrome, Familial Adenomatous Polyposis, Gardner Syndrome, Endoscopy, and Gastrectomy. Dr. Prall is board certified in American Board Of Internal Medicine. Dr. Prall is currently accepting new patients.
Office
Robert Muller is a primary care provider, practicing in Family Medicine in Montoursville, Pennsylvania. Dr. Muller is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Breast Cancer, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.
Office
Ingrid Ockenhouse is a primary care provider, practicing in Internal Medicine in Montoursville, Pennsylvania. Dr. Ockenhouse is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Juvenile Primary Osteoporosis, Chronic Obstructive Pulmonary Disease (COPD), Type 2 Diabetes (T2D), and Maturity Onset Diabetes of the Young.
UPMC Susquehanna Health, Internal Medicine
Daniel Glunk, MD, is certified by the American Board of Internal Medicine. He practices at UPMC Susquehanna Health, Internal Medicine and is affiliated with UPMC Williamsport. He completed his residency at the University of Pittsburgh School of Medicine and medical degree at Hahnemann University Hospital. Dr. Glunk is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Chronic Kidney Disease, Hyperlipidemia Type 3, Chronic Cough, and Type 2 Diabetes (T2D). Dr. Glunk is board certified in American Board Of Internal Medicine. Dr. Glunk is currently accepting new patients.
UPMC Primary Care
Michelle Cavanaugh, MD, specializes in family medicine and is certified by the American Board of Family Medicine. She is affiliated with UPMC Williamsport. She completed her medical degree at Penn State College of Medicine - Hershey. Dr. Cavanaugh is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Hyperlipidemia Type 3, Osteoarthritis, Urinary Tract Infection in Children, and Kidney Stones. Dr. Cavanaugh is board certified in American Board Of Family Medicine. Dr. Cavanaugh is currently accepting new patients.
Geisinger Medical Center Muncy - Community Medicine
Eddie Rodriguez-Lopez, MD, is a board-certified family medicine physician, also called a primary care doctor. His clinical interests include diabetes and chronic health conditions.|Dr. Rodriguez-Lopez earned his medical degree from the Ponce School of Medicine and completed his residency at Penn State Good Samaritan Hospital. He speaks both English and Spanish. Dr. Rodriguez is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Rodriguez is currently accepting new patients.
Last Updated: 04/28/2026










