Dr. George L. Arnold

Klaus Bielefeldt is a Gastroenterologist in Pittsburgh, Pennsylvania. Dr. Bielefeldt is rated as a Distinguished provider by MediFind in the treatment of Gastroparesis. His top areas of expertise are Biliary Dyskinesia, Gastroparesis, Indigestion, Gallbladder Removal, and Endoscopy.

Aylin Tansel, MD, specializes in internal medicine and gastroenterology and is certified in internal medicine and gastroenterology by the American Board of Internal Medicine. She practices at University of Pittsburgh Physicians, Department of Medicine, Division of Gastroenterology, and is affiliated with UPMC Mercy, UPMC Presbyterian, and UPMC Magee-Womens Hospital. She completed her residency at the Thomas Jefferson University Medical College. Dr. Tansel is rated as an Advanced provider by MediFind in the treatment of Gastroparesis. Her top areas of expertise are Gastroparesis, Achalasia, Exocrine Pancreatic Insufficiency, Gastrectomy, and Endoscopy.

Dr. David J. Levinthal is a gastroenterologist and is board-certified in gastroenterology and internal medicine. He is director of the Neurogastroenterology & Motility Center and assistant professor of medicine in the Division of Gastroenterology, Hepatology, and Nutrition. Dr. Levinthal received his doctorate in Neuroscience at the University of Pittsburgh, followed by his medical degree from the University of Pittsburgh School of Medicine; he completed his residency at the University of Michigan Health System and his gastroenterology fellowship at UPMC. Dr. Levinthal is rated as a Distinguished provider by MediFind in the treatment of Gastroparesis. His top areas of expertise are Cyclic Vomiting Syndrome, Cannabinoid Hyperemesis Syndrome (CHS), Gastroparesis, Protein Deficiency, and Colonoscopy.