| Business | Phone |
| Immuno-Biogenetics Institute 23101 Sherman Pl # 404, West Hills 91307 | (818) 346-7312 |
| Prohealth 7345 Medical Center Dr # 130, West Hills 91307 | (818) 710-6011 |
| Quest Diagnostics Inc 7230 Medical Center Dr # 605, West Hills 91307 | (818) 704-9052 |
| Quest Diagnostics Inc 7320 Woodlake Ave, West Hills 91307 | (818) 712-0189 |
| United Westlab 23101 Sherman Pl, West Hills 91307 | (818) 710-7454 |
| United Westlab 7301 Medical Center Dr, West Hills 91307 | (818) 593-4928 |
| Western Health Sciences 7301 Medical Center Dr # 204, West Hills 91307 | (818) 773-9771 |