| Business | Phone |
| Advantage Billing Inc 2504 Ardmore St Se, Grand Rapids 49506 | (616) 942-8060 |
| Anderson Medical Billing Svc 1515 Michigan St Ne, Grand Rapids 49503 | (616) 454-0051 |
| Benchmark Management Svc 2429 Valentine Blvd Ne, Grand Rapids 49525 | (616) 363-4523 |
| E S Financial Inc 3200 Broadmoor Ave Se, Grand Rapids 49512 | (616) 942-5555 |
| Innovative Practice Concepts 2350 Oak Industrial Dr Ne A, Grand Rapids 49505 | (616) 459-6867 |
| West Michigan Business Svc 3210 Eagle Run Dr Ne 200, Grand Rapids 49525 | (616) 364-6700 |
| Per-Se Technologies 5253 36th St Se, Grand Rapids 49512 | (616) 975-9182 |
| Physicians Support Network 710 Kenmoor Ave Se 110, Grand Rapids 49546 | (616) 261-2616 |