| Ochoa Alfonso | 909 S Airport Dr - Weslaco Telephone: 956-968-0560 |
| Ochoa's Pharmacy | 1002 S. 10th Ave. #A - Edinburg Telephone: (956) 381-0967 |
| Ochoa's Pharmacy Second Location | 301 Conquest Blvd - Edinburg Telephone: (956) 318-5159 |
| Octavio Mejia Jr DDS | 2103 E Griffin Pkwy # A - Mission Telephone: 956-583-9880 |
| O'Donnell Brian | 597 Sesame Dr B - Harlingen Telephone: 956-423-3343 |
| Office of Psychiatrist Elisa Sanchez | 905 S Jackson Rd - McAllen Telephone: 956-618-4648 |
| Ofsman Quintana | 500 E Ridge Rd #300 - McAllen Telephone: 956-630-5522 |
| Ojeaga Macaulay | 508 W Expy 83 - McAllen Telephone: 956-630-5600 |
| OK Pharmacy | 122 S. Main St. - Donna Telephone: (956) 464-2200 |
| Okan Dental | 202 E Expy 83 - Mission Telephone: 956-584-1800 |