Physicians Gwen M. Grimsby, MD Specialties Urology Michael T. Nguyen, MD Interim Division Chief, Urology Specialties Urology Advanced Practice Providers Karen R. Dunivant, CPNP Voiding Disorder and Enuresis Coordinator Specialties Urology Kelly M. Parker, MSN, PA-C Specialties Urology Marilyn L. Tigges, PA-C Specialties Urology