| Business | Phone |
| California Billing Specialists 25616 Narbonne Ave # 103, Lomita 90717 | (310) 539-6656 |
| Hrn Accounting Svc 1951 Rolling Vista Dr, Lomita 90717 | (310) 521-9631 |
| Medical Office Solutions Lomita 90717 | (310) 530-7441 |
| Pacific Practice Management 2158 256th St, Lomita 90717 | (310) 325-4116 |