WTMA Patient Portal. Community Medical Associates 3501 Knickerbocker Road San Angelo, TX 76904 (325) 245-4262 (325) 245-4000. Community Medical Executive 2142 Sunset Drive San Angelo, TX 76904 3350 Executive Drive (325) 245-4281. Community Express Care Walk-in Care 5730 Sherwood Way San Angelo, Texas 76904.