| Business | Phone |
| Anez & Bitar 8365 Greensboro Dr A, Mclean 22102 | (703) 356-4444 |
| Diagnostic & Educational 6832 Old Dominion Dr, Mclean 22101 | (703) 883-2009 |
| United Biotechnologies 6720 Old Mclean Village Dr, Mclean 22101 | (703) 356-2460 |
| United Medical Laboratories 6720 Old Mclean Village Dr, Mclean 22101 | (703) 356-4422 |
| Midillc 1420 Spring Hill Rd 600, Mclean 22102 | (703) 893-1919 |
| Quest Diagnostics 1515 Chain Bridge Rd G16, Mclean 22101 | (703) 356-0313 |