| Business | Phone |
| D J Broughton 9188 Landgreen St, Manassas 20110 | (703) 392-0589 |
| Commonwealth Medical Claims 6510 Mockingbird Ln, Manassas 20111 | (703) 361-2678 |
| Physicians Billing Svc-N Va 7840 Purcell Branch Ct, Manassas 20112 | (703) 794-8090 |
| Par Medical Billing Svc 8405 Dorsey Cir 202, Manassas 20110 | (703) 392-6199 |
| Mets Billing Svc Po Box 3302, Manassas 20108 | (703) 361-6656 |
| Health Care Billing Ctr 8314 Browns Ln 104, Manassas 20111 | (703) 335-2324 |