Clinic Portal Hospital Portal Clinic Portal Hospital Portal TCMH Main Campus 1333 S. Sam Houston Blvd Houston, MO 65483 1-866-967-3311 contactus@tcmh.org Outpatient Clinic, Houston (417) 967-1252 Outpatient Surgery Clinic, Houston (417) 967-1252 Medical Complex, Houston (417) 967-5435 Walk-in Clinic, Houston (417) 967-5435 Cabool Medical Clinic.