| Business | Phone |
| Excel Medical Billing Svc 10911 Sunray Pl, La Mesa 91941 | (619) 461-3999 |
| Excel Medical Billing Svc 7339 El Cajon Blvd, La Mesa 91941 | (619) 461-3999 |
| Physicians Professional Bllng 7811 La Mesa Blvd # E, La Mesa 91941 | (619) 462-0811 |
| Precision Medical Management 7373 University Ave # 213, La Mesa 91941 | (619) 464-1165 |
| Q A Medical Billing Svc 5745 Severin Dr, La Mesa 91942 | (619) 465-4770 |
| Spectrum Health Systems Inc 8029 La Mesa Blvd, La Mesa 91941 | (619) 668-0600 |