| Business | Phone |
| Health Facility Consultants 7322 Southwest Fwy 640, Houston 77074 | (713) 995-9890 |
| Affiliated Health Systems Inc 1020 Holcombe Blvd, Houston 77030 | (713) 796-0891 |
| Cardinal Health 3720 W Alabama St # 3203, Houston 77027 | (713) 840-0996 |
| Columbia/Hca Healtcare 7400 Fannin St 650, Houston 77054 | (713) 852-1500 |
| Complete Rx 3100 S Gessner Rd 640, Houston 77063 | (713) 355-1196 |
| Essex International Svc 3000 Weslayan St, Houston 77027 | (713) 552-1400 |
| Hanrahan Williams 1221 Lamar St, Houston 77010 | (713) 651-8077 |
| Health Plus 2200 Southwest Fwy, Houston 77098 | (713) 522-0481 |
| Neuromed Inc 8330 El Mundo St, Houston 77054 | (713) 842-1884 |