Meet Our Medical College of Wisconsin Department of Urology Team
Adult Faculty and Staff


Robert Corey O'Connor, MD
Dept & Educational Vice-Chair, Professor
Female Urology, Urodynamics, Reconstructive Urology




Peter N. Dietrich, MD
Assistant Professor
Infertility, Vasectomy







Arjun Sivaraman, MD
Associate Professor
Urologic Oncology

Karen M. Henrichs, PA-C
Physician Assistant Surgical
Urologic Oncology


Myranda J. Koch, DNP, FNP
Nurse Practitioner
General Urology




Christos Reppas, PA-C, NCCPA
Physician Assistant
General Urology


Pediatric Faculty and Staff

John V. Kryger, MD
Pediatric Chief, Professor

Jonathan S. Ellison, MD
Research Vice-Chair, Associate Professor

Travis Groth, MD
Associate Professor

Elizabeth B. Roth, MD
Assistant Professor

Matthew James Armstrong, APNP
Nurse Practitioner

Katherine Ellen Aussem, APNP
Nurse Practitioner

Coleen Rosen, 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

Matthew Kasson, MD
Urology Resident

Joseph Lankford, MD
Urology Resident

Keerthana Mohankumar, MD
Urology Resident

Nayan Shah, MD
Urology Resident

Brendan Waldoch, MD, MS
Urology Resident

Andrew Watts, MD
Urology Resident

Isaac Melin, MD
Urology Resident

Megan Paradzinsky, MD
Urology Resident

Emily Polley, MD
Urology Resident

Arya Anvar, MD
Urology Resident

Kwesi Asantey, MD
Urology Resident

Carissa Battle, MD
Urology Resident

Sarah Erpenbeck, MD
Urology Resident

Madelyn Flitcroft, MD
Urology Resident
