| Business | Phone |
| Medical Billing Assoc 5150 Burruss Mill Rd, Cumming 30041 | (770) 205-7641 |
| Ambiss Inc 3698 Bethelview Rd, Cumming 30040 | (678) 947-3388 |
| Express Billing Svc 455 Gants Hill Place, Cumming 30041 | (770) 722-8604 |
| Healthcare Audit Specialists 253 Greenwood Acres Dr, Cumming 30040 | (678) 714-5533 |