| Business | Phone |
| All Specialty Medical Billing 730 Polhemus Rd # 203, San Mateo 94402 | (650) 356-0076 |
| Bingo Kristine Medical Mgmt San Mateo 94403 | (650) 483-7006 |
| C D Billing Svc 1 Baywood Ave # 7, San Mateo 94402 | (650) 344-6961 |
| Cummins Professional Svc Llc 3 37th Ave # 22, San Mateo 94403 | (650) 572-6000 |
| M & M Medical Billing 328 Estrella Way, San Mateo 94403 | (650) 341-0725 |