Our Physicians

Robert Glickenberger, M.D.

Robert (Bob) Glickenberger, board certified in gastroenterology and hepatology, received his medical degree from University of Illinois and completed his residency training at University of Wisconsin-Madison. He followed with fellowship training at Providence Hospital in Southfield, MI before joining Catawba GI in Lancaster, SC. Prior to joining GI Associates of Tallahassee, he served on staff at the Heartland Clinic in Moline, IL. He is married with 3 children. He enjoys playing golf, listening to the Beatles, gardening, and watching football and NASCAR.

Dr Glickenberger

Nicholas Costrini, M.D.

Prior to joining GI Associates of Big Bend, Dr. Costrini joined Kalispell Gastroenterology in 2015 where he served as the Program Director of the Digestive Health Institute of Montana. Dr. Costrini earned his PhD in physiology of Marquette University in Milwaukee, Wisconsin, then completed medical school at The Medical College of Wisconsin. He did his residency at Barnes Hospital in St. Louis, Missouri, through the Washington University School of Medicine. He accepted a fellowship in gastroenterology with that institution and followed with a year as chief resident in medicine. He stayed with Washington University as a postdoctoral fellow in biological chemistry and gastrointestinal medicine. He returned to the Medical College of Wisconsin as faculty for several years before moving to Savannah, Georgia where he established a successful private practice. Before his tenure in Kalispell, Dr. Costrini directed the Georgia Gastroenterology Group, PC, one of the largest solo gastrointestinal practices in the South, and also served as the director of gastroenterology for the Nancy and JC Lewis Cancer and Research Pavilion in Savannah, Georgia. His specialized skills in inflammatory bowel disease, gastrointestinal cancer care, and several disciplines of advanced endoscopy have contributed to his high level of care for patients across the spectrum.

Dr Costrini