Nashville, Tenn., (August 8, 2011) – Centennial Medical Center is pleased to welcome Jason Aston, M.D., colon and rectal surgeon, to its medical staff.

Dr. Aston received his medical degree from the University of Tennessee College of Medicine in Memphis, Tenn.  He completed a general surgery internship and residency at the University of South Florida College of Medicine.  Dr. Aston then completed a colon and rectal surgery fellowship at Baylor University Medical Center. Dr. Aston’s medical interests include laparoscopic and minimally invasive techniques, colon and rectal cancer, diverticular disease, inflammatory bowel disease, familial polyposis syndromes and anorectal disease.

Dr. Aston is now accepting new patients at his office in Nashville, Tenn., located at 345 23rd Avenue North, Suite 300. For more information or to schedule an appointment, please call TriStar MedLineSM at 615-342-1919 or visit and click on Centennial Medical Center.

Centennial Medical Center, part of HCA/TriStar Health System, is a 657-bed facility that is accredited by the Joint Commission on Accreditation of Healthcare Organizations (JCAHO). One of Tennessee’s most complete medical facilities, the hospital campus is home to The Sarah Cannon Cancer Center at Centennial, The Women’s Hospital at Centennial, Centennial Heart Center as well as Parthenon Pavilion, one of the oldest and largest full-service psychiatric facilities in the region. Round-the-clock care is also available at Centennial Medical Center at Ashland City, a critical access hospital in nearby Cheatham County. To learn more, visit and click on Centennial Medical Center or call 800-242-5662.