For TELEVISITS, Click on Patient Portal button and follow the prompts to schedule a visit. 3110 Nogalitos St., Ste. 105, San Antonio, TX 78225 (210) 533-0257. 9811 Huebner Rd., Bldg. 2, San Antonio, TX 78240 (210) 561-8169. Patient Portal Schedule appointment. ... David A. Ramos, MD Dr. Ramos is board certified by the American Board of Family ....