Using Indirect Measures to Identify Geographic Hot Spots of Poor Glycemic Control: Cross-sectional Comparisons With an A1C Registry David C. Lee, Qun Jiang, Bahman P. Tabaei, Brian D. Elbel, Christian A. Koziatek, Kevin Konty, Winfred Y. Wu Diabetes Care July 1, 2018 Wagner Faculty Brian Elbel