WMCHealth Physicians Transplant Center, located at the Ambulatory Care Center in Valhalla, NY, provides liver transplant services. The program performed the first liver transplant in the Hudson Valley in 1996. WMCHealth Physicians Transplant Center participates in the United Network for Organ Sharing (UNOS). WMCHealth Physicians Transplant Center is a member of the Westchester Medical Center Health Network (WMCHealth), a 1,700-bed healthcare system headquartered in Valhalla, New York, with 10 hospitals on eight campuses spanning 6,200 square miles of the Hudson Valley.