Dr. Aaron W. Feaster

Lawrence Sann, MD, specializes in general surgery and is board-certified in surgical critical care and surgery by the American Board of Surgery. He is affiliated with UPMC Williamsport. Dr. Sann completed his fellowship at Yale School of Medicine, residency at University at Buffalo, and medical education at St George's University School of Medicine. Dr. Sann is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Perforation. His top areas of expertise are Ogilvie Syndrome, Retroperitoneal Inflammation, Gastrointestinal Perforation, Small Bowel Resection, and Hernia Surgery.

Lin Riccio, MD, specializes in trauma surgery and is board certified in surgical critical care and surgery by the American Board of Surgery. She practices at Acute Care/Trauma Surgery and is affiliated with UPMC Cole, UPMC Wellsboro, UPMC Muncy, and UPMC Williamsport. Dr. Riccio completed her fellowship at University of Virginia Healthcare System, residency at University of Virginia Health System University Hospital, and medical education at East Carolina University - School of Medicine. Dr. Riccio is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Perforation. Her top areas of expertise are Secondary Peritonitis, Retroperitoneal Inflammation, Ogilvie Syndrome, Hernia Surgery, and Colostomy.

John Semian is a General Surgeon in Danville, Pennsylvania. Dr. Semian is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Perforation. His top areas of expertise are Hernia, Gallbladder Disease, Gallstones, Hernia Surgery, and Ileostomy.