Dr. Harshit S. Khara

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 rated as a Distinguished provider by MediFind in the treatment of Malnutrition. His top areas of expertise are Obesity, Malnutrition, Small Bowel Bacterial Overgrowth, Gastric Bypass, and Vagotomy.

David M. Parker, MD, FACS, FASMBS, is a board-certified general surgeon specializing in bariatric surgery for both adolescents and adults. Dr. Parker performs several advanced and specialized surgical procedures, including gastric bypass, biliopancreatic diversion with duodenal switch, revisional bariatric surgery, laparoscopic gastric band (or “lap band”) and gastric sleeve. He also provides care for various conditions affecting the stomach and gastrointestinal (GI) system, including hiatal hernia, paraesophageal hernia, achalasia and acid reflux.|He has a clinical interest in minimally invasive laparoscopic and robotic surgery.|Board-certified in general surgery, Dr. Parker earned his medical degree from West Virginia University in Morgantown. He completed a general surgery residency at the Dwight D. Eisenhower Army Medical Center in Fort Gordon, GA, followed by a fellowship in bariatric and foregut surgery at Geisinger Medical Center in Danville.|While in medical school, he received the Presidential Award for Excellence in Scholarship. During his fellowship, he received the SAGES Award for best fellow presentation.|Dr. Parker serves as program director for the Geisinger bariatric and foregut surgical fellowship. He has a strong commitment to research in bariatric and foregut surgery and has authored more than 24 published articles.|He is an active member of the Society of Gastrointestinal and Endoscopic Surgeons and a fellow of the American College of Surgeons and American Society of Metabolic and Bariatric Surgeons.|Dr. Parker has served in the United States Army and continues to serve as a lieutenant colonel in the United States Army Reserve. He is also a football enthusiast, rooting for the West Virginia Mountaineers in his free time. Dr. Parker is rated as a Distinguished provider by MediFind in the treatment of Malnutrition. His top areas of expertise are Hiatal Hernia, Hernia, Obesity, Gastric Bypass, and Endoscopy.

Dr. Horsley attended the West Virginia School of Osteopathic Medicine, where he earned his degree in osteopathic medicine. He completed his residency at Geisinger Northeast General Surgery program in Wilkes Barre, Pa. He then continued his surgical training at Geisinger Medical Center in Danville, Pa., where he completed a fellowship in minimally invasive and bariatric surgery.|Dr. Horsley is a board certified in general surgery by the American Osteopathic Board of Surgery. He holds certifications by the American Society for Metabolic and Bariatric Surgery (ASMBS) for metabolic & bariatric surgery and by the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) for advanced GI MIS & bariatrics, and is verified by ASMBS/SAGES for bariatric endoscopy-bariatric endoscopy skill acquisition focused evaluation (BE-SAFE). Dr. Horsley is rated as a Distinguished provider by MediFind in the treatment of Malnutrition. His top areas of expertise are Obesity, Malnutrition, Hiatal Hernia, Gastric Bypass, and Endoscopy.