St. Thomas Medical Group, PLLC, is a multi-specialty practice dedicated to providing quality service, expert physicians, and trusted care to the people of Middle Tennessee and surrounding counties. Located on the campus of St. Thomas Hospital, the practice offers diagnosis and treatment in Internal Medicine, Pulmonology, Gastroenterology, Otolaryngology/Neurology/Allergy, Rheumatology, Pediatrics, Sleep Disorders, and Hypertension. Our practice strives to ensure that patient-centered care continues to be an ongoing focus. Comprehensive on-site testing, state-of-the-art facilities, and access to specialists make St. Thomas Medical Group an excellent choice in serving the needs of diverse communities throughout the region. OUR PHYSICIANS Primary Care Physicians: Newton Allen, MD Robert Berkompas, MD Jennifer L. Bess, MD Timothy Dibble, MD Cecilia Fisher, MD John Guenst, MD Nathan Hall, MD Benjamin Hill, MD Roger Hodge, MD S. Jay Kayser, MD Gary McDonald, MD Pulmonary/Sleep Disorders: Angelo Canonico, MD Susan K. Garwood, MD John Ferguson, MD A. Clyde Heflin, MD Mark T. Peters, MD Jon Tumen, MD Stacey Vallejo, MD Children and Adult Medicine: Deborah Beyer, MD Mark Krakauer, MD Timothy Mangrum, MD - Medical Director Nashville ENT and Allergy: Steven Enrich, MD Stephen Mitchell, MD Mitchell Schwaber, MD Gastroenterology: Jeffrey Eskind, MD Antonio Granda, MD Hypertension: Mark C. Houston, MD Jonathan Cole, FNP Rheumatology: Poonam Somai, MD