Meet Our 91ɫƵ Department of Urology Team
Adult Faculty and Staff
Peter N. Dietrich, MD
Assistant Professor
Infertility, Vasectomy
Arjun Sivaraman, MD
Associate Professor
Urologic Oncology
Tyler Wittmann, MD
Assistant Professor
General Urology
Myranda J. Koch, BSN, RN, DNP, FNP-BC, APNP
APP Hybrid
General Urology
Christos Reppas, PA-C, NCCPA
Physician Assistant
General Urology
Pediatric Faculty and Staff
Douglas W. Storm, MD
Pediatric Chief, Professor
Jonathan S. Ellison, MD, FACS
Research Vice-Chair, Associate Professor
Travis Groth, MD
Associate Professor
John V. Kryger, MD
Professor
Elizabeth B. Roth, MD
Associate Professor
Matthew James Armstrong, APNP
Nurse Practitioner
Katherine Ellen Kressin, APNP
Nurse Practitioner
Heidi Vanderpool, APNP
Nurse Practitioner
Emeritus Faculty
Robert Donnell, MD
Emeritus
Hrair-George Mesrobian, MD
Emeritus
Michael Mitchell, MD
Emeritus
William See, MD
Emeritus
Urology Residents
Isaac Melin, MD
Urology Resident, PGY 5
Megan Paradzinsky, MD
Urology Resident. PGY 5
Emily Polley, MD
Urology Resident, PGY 5
Arya Anvar, MD
Urology Resident, PGY 4
Kwesi Asantey, MD
Urology Resident, PGY 4
Carissa Battle, MD
Urology Resident, PGY 4
Thomas Barefoot, MD
Urology Resident, PGY 3
Sarah Erpenbeck, MD
Urology Resident, PGY 3
Madelyn Flitcroft, MD
Urology Resident, PGY 3
Sarah Kodres-O'Brien, MD
Urology Resident, PGY 3
Leah Ashton, MD
Urology Resident, PGY 2
Benjamin Bonebrake, MD
Urology Resident, PGY 2
Casey Norton, MD
Urology Resident, PGY 2
Daniel Reich, MD
Urology Resident, PGY 2
Jonathan Hjelmgren, MD
Urology Resident, PGY 1
Sukhjeevan Nijhar, MD
Urology Resident, PGY 1
Isis Sweeney, MD
Urology Resident, PGY 1