| Business | Phone |
| Mars Ist Medical Assistance 4829 Woodward Ave 203, Detroit 48201 | (313) 831-5545 |
| One Step Medical Billing 1930 Seward St, Detroit 48206 | (313) 899-5110 |
| Extended Care Doctor's Office 20955 W 7 Mile Rd, Detroit 48219 | (313) 255-3911 |
| P W Medical Billing Svc 17323 Lenore, Detroit 48219 | (313) 794-5613 |
| Renaissance West Community 8097 Decatur St, Detroit 48228 | (313) 945-7444 |
| Marsyl Medical Billing Svc 8371 Rolyat St, Detroit 48234 | (313) 893-7482 |