| Business | Phone |
| Accutrack Medical Billing 15703 Freeman Ave, Lawndale 90260 | (310) 679-2141 |
| Compuclaim Medical Billing Center 4330 W 147th St, Lawndale 90260 | (310) 644-9702 |
| Doctors Preferred Billing Svc 15342 Hawthorne Blvd # 300, Lawndale 90260 | (310) 263-1157 |