ARC Offers Primary Care at Seton Northwest, Doctors Relocate from Arbor Square February 17, 1991 0 min read ARC Seton Northwest opens (formerly ARC Arbor Square Medical Ctr) ARC now offers Primary Care at ARC Seton Northwest in Suites 495 & 485. Drs. Kravitz, Glaze, Mitchell, Prochnow, and LeClear will relocate to the new office from Arbor Square. Tags: None