Marsha K. Hartmann, COTA is a health institution located at 500 East Veterans Street in Tomah, Wisconsin, United States. As part of the Tomah VA Health Care System, our experienced health care teams are dedicated to meeting the needs of Veterans, their families, and caregivers. Our official website provides a secure platform for managing your health online and finding a health facility near you. Join us for community events and stay updated on the latest news. Director Karen Long recently honored Vietnam Veterans on National Vietnam Veterans Day, March 29th.