Dr. Matthew J. Shellenberger

Dr. Diehl is a board-certified and fellowship-trained gastroenterologist. His clinical interests include endoscopic ultrasound, endoscopic retrograde cholangiopancreatography (ERCP) and innovative advanced therapeutic endoscopy. Dr. Diehl obtained his medical degree from the University of California, Los Angeles. He completed his residency at Harbor-UCLA Medical Center and his fellowships in gastroenterology at the University of California, San Francisco Medical Center and the University of California, Los Angeles Medical Center. Dr. Diehl is certified by the American Board of Internal Medicine. In his free time, Dr. Diehl enjoys spending time with his family and exercising, particularly swimming. He also has an appreciation for old cars. Dr. Diehl is highly rated in 27 conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Gallbladder Disease, Watermelon Stomach, Endoscopy, and Gallbladder Removal. Dr. Diehl is board certified in The American Board Of Internal Medicine. Dr. Diehl is currently accepting new patients.

Dr. Still is a board-certified and fellowship-trained specialist in nutrition and weight management. His clinical and research interests include malnutrition and comprehensive weight management. Dr. Still obtained his medical degree from the Philadelphia College of Osteopathic Medicine. He completed his residency and a fellowship in clinical nutrition at Geisinger Medical Center. Dr. Still is certified by the American Board of Internal Medicine.|Are weight loss medications right for you? Learn more from Dr. Still. Dr. Still is highly rated in 8 conditions, according to our data. His clinical expertise encompasses Obesity, Malnutrition, Small Bowel Bacterial Overgrowth, Gastric Bypass, and Knee Replacement. Dr. Still is board certified in The American Board Of Internal Medicine. Dr. Still is currently accepting new patients.

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 highly rated in 22 conditions, according to our data. His clinical expertise encompasses Mallory-Weiss Syndrome, Hereditary Pancreatitis, Acute Pancreatitis, Bone Marrow Aspiration, and Endoscopy. Dr. Kumar is board certified in American Board Of Internal Medicine. Dr. Kumar is currently accepting new patients.