Physicians & Staff DoctorsAPP - Advanced Practice Providers Our Doctors Daniel G. Fagel, M.D. Chadwick Hatfield, M.D. Michael E. Jones, M.D. Scott C. Leverage, M.D. Karlina Patton, M.D. Joel M. Warren, M.D. Samir Vermani, M.D. Allan Lam, DO Our APP (Advanced Practice Providers) Josh Caldwell, APRN, AGANCP-BC, DNP Carolyn Day, APRN Briana Goodridge, APRN