| Business | Phone |
| Med 2000 Po Box 489, Redondo Beach 90277 | (310) 316-9110 |
| N A Medical Billing 200 S Prospect Ave, Redondo Beach 90277 | (310) 543-2250 |
| Emed Professional Billing Svc 2110 Artesia Blvd # B167, Redondo Beach 90278 | (310) 919-9180 |
| Southbay Medical Billing Svc 1923 1/2 Nelson Ave, Redondo Beach 90278 | (310) 374-4792 |