TriStar Medical Group, is a family of over 300 physicians and providers serving Middle Tennessee and Southern Kentucky. As a part of HCA's TriStar Health, we're connected to the region's largest network of healthcare services. Our experienced physicians offer a wide range of specialties like cardiology, neurology and gastroenterology as ...Find a Doctor‧Locations‧Home‧Patients & Visitors‧Contact Us‧Pay My Bill.