| Business | Phone |
| Diabetex Corp 351 W Camden St # 100, Baltimore 21201 | (410) 625-2200 |
| Healthcare Plan Management Inc 111 S Calvert St # 2600, Baltimore 21202 | (410) 576-9500 |
| Intralytix 323 W Camden St, Baltimore 21201 | (410) 659-7330 |
| Maryland Heathcare Resources 2901 Druid Park Dr, Baltimore 21215 | (410) 523-7400 |
| Cmsa Of The Chesapeake Baltimore 21220 | (410) 560-2070 |
| Health Claims Systems-Maryland 1705 Poplar Pl # C, Baltimore 21222 | (410) 284-0806 |