February 2021 Norton Medical Group new providers Tom Heiser 3 years ago Omar S. Elbita, M.D. Hospital Medicine Rosemarie O. Serrone, M.D. Cardiothoracic Surgery Kelsey Arnold, PA-C Orthopedics Tricia A. Cortas, PA-C Cardiology Damian Morriston, PA-C Hospital Medicine LaToma J. Barnett, APRN Emergency Medicine Candice Y. Gray-Cunningham, APRN Infectious Diseases