| Business | Phone |
| A & H Billing Specialties 1789 Barcelona St, Livermore 94550 | (925) 371-2388 |
| Innovative Medical Billing 1058 Iroquois Ave, Livermore 94551 | (925) 371-7005 |
| Amador Medical Billing Svc 1080 Concannon Blvd, Livermore 94550 | (925) 449-2155 |
| Tri-Valley Medical Billing Svc Livermore 94550 | (925) 292-4761 |