San Antonio Preventive & Diagnostic Medicine, P.A. 8401 Datapoint, Suite 401, San Antonio, TX 78229 (210) 949-2200 FAX (210) 692-1829 WELCOME! The physicians and staff at San Antonio Preventive & Diagnostic Medicine, P.A. (SAPDM) would like to take this opportunity to welcome you and thank you for choosing SAPDM as your health care provider..