| Manuel G. Guajardo | 301 Lorenaly Dr Suite E, - Brownsville Telephone: 956-350-5007 |
| Manuel Reinoso, M.D | 7, 1536, 1400 E Ridge Rd - McAllen Telephone: 956-928-0400 |
| Marco Gutierrez & Associates | 401 S Alamo Rd - Alamo Telephone: 956-787-9111 |
| Marco T Florez | 306 W Newcombe Ave - Pharr Telephone: 956-781-2953 |
| Marcus McRoberts | 2230 Central Blvd. - Brownsville Telephone: (956) 542-2870 |
| Margo Veterinary Clinic | 601 W 6th St - Rio Grande City Telephone: (956) 487-3623 |
| Mario R Anzaldua | 1512 E Griffin Pkwy #2 - Mission Telephone: 956-519-7088 |
| Mari's Pharmacy | 116 E 8th St #1 - Weslaco Telephone: 956-968-7733 |
| Martha Cano | 2017 W Expy 83 #1 - Weslaco Telephone: 956-969-5995 |
| Martin Drug Co. | 601 S. Nebraska Ave. - San Juan Telephone: (956) 787-1861 |