| South Texas Clinic of Chiro | 5000 N 23rd St G - McAllen Telephone: 956-682-1832 |
| South Texas Diabetes/Endocrine | 2101 S Cynthia St # D1 - McAllen Telephone: 956-928-1909 |
| South Texas Gastroenterology | 2121 E Griffin Pkwy # 17 - Mission Telephone: 956-519-3545 |
| South Texas Medical Clinic | 801 S Airport Dr - Weslaco Telephone: 956-968-3230 |
| South Texas Monitoring System | 2245 Austin Ave - McAllen Telephone: 956-618-4900 |
| South Texas Provider Services | 6219, 413 S Oregon Ave - Weslaco Telephone: 956-969-2472 |
| South Tx Clinic For Pain Management | 4345 N Expy #550 - Brownsville Telephone: 956-350-4770 |
| Southern Texas Physicians | 100 E Alton Gloor Blvd - Brownsville Telephone: 956-350-3901 |
| Southmost Area Medical Equipment | 5235 Southmost Rd # D - Brownsville Telephone: 956-544-8080 |
| Southwest Ent Institute | 844 Central Blvd # 280 - Brownsville Telephone: 956-504-5360 |