Patient First - Manassas: 9715 Liberia Ave Manassas, VA 20110: 571-229-1797: ... ADAMS Compassionate Healthcare Network: 4600 Brookfield Corporate Drive Chantilly, VA 20151: 703-542-3366: CONTACT@ACHNHEALTH.ORG: T/TH/Sat 3pm-5pm Scheduled drive-thru appointment only: Yes Yes: Yes Yes: Yes.