FOR IMMEDIATE RELEASE. Contact: Pamela Larkin, 408.466.5952, [email protected] Arlington, VA (June 10, 2020) - Today, Advantia Health announced it acquired Ob-Gyn provider Reiter, Hill, Johnson & Nevin (RHJN), its first Washington DC-based practice. With RHJN, Advantia adds 20 providers and 3 additional clinic locations (in Washington, DC, Chevy Chase, Maryland, and Falls Church, Virginia ....