The Michael E. DeBakey VA Medical Center serves as the primary health care provider for almost 130,000 veterans in southeast Texas. Veterans from around the country are referred to the MEDVAMC for specialized diagnostic care, radiation therapy, surgery, and medical treatment including cardiovascular surgery, gastrointestinal endoscopy, nuclear medicine, ophthalmology, and treatment of spinal cord injury and diseases. The MEDVAMC is home to a Post-Traumatic Stress Disorder Clinic; Network Polytrauma Center; an award-winning Cardiac and General Surgery Program; Liver Transplant Center; VA Epilepsy and Cancer Centers of Excellence; VA Substance Abuse Disorder Quality Enhancement Research Initiative; Health Services Research & Development Center of Innovation; VA Rehabilitation Research of Excellence focusing on mild to moderate traumatic brain injury; Mental Illness Research, Education and Clinical Center; and one of the VA's six Parkinson's Disease Research, Education, and Clinical Centers. In late 2012, the MEDVAMC received official designation as a Kidney Transplant Center. Including the outpatient clinics in Beaumont, Conroe, Galveston, Houston, Katy, Lufkin, Richmond, Tomball and Texas City, MEDVAMC outpatient clinics log more than a million outpatient visits annually.