| Business | Phone |
| Richard F Gramm 4609 Round Hill Rd, Ellicott City 21043 | (410) 465-0267 |
| Integral Medical Supplies Ellicott City 21043 | (410) 418-9500 |
| Mbi Svc Inc 8455 Baltimore National Pike, Ellicott City 21043 | (410) 203-1444 |
| Medical Diagnostic Svc 10294a Baltimore National Pike, Ellicott City 21042 | (410) 461-1882 |
| Mid-Atlantic Medical Assoc 10233 Red Lion Tavern Ct, Ellicott City 21042 | (410) 465-1773 |
| Pulmonary Services 9744 Gudel Dr, Ellicott City 21042 | (410) 750-8526 |