| Business | Phone |
| Dcs Medical Billing 9510 Olive St # 8, Fontana 92335 | (909) 429-1842 |
| Hummingbird Medical Billing 14520 Village Dr # 113, Fontana 92337 | (909) 829-8452 |
| Money N The Bank 8187 Palmetto Ave # 107, Fontana 92335 | (909) 350-7441 |
| Professional Medical Claims Fontana 92335 | (909) 429-8534 |