Urologists in the Division of Urologic Surgery are part of the Washington University Physicians medical group, which is recognized as an international leader in providing innovative, high-quality medical care. Meet the urologic surgery team below.

Michael H. Johnson, MD
Interim Chief, Division of Urologic Surgery
Professor of Surgery

Sunil M. Apte, MD
Assistant Professor of Surgery

Christopher T. Arett, MD
Associate Professor of Surgery

Sam B Bhayani, MD
- Holekamp Family Endowed Chair in Urology
- Division of Urology
- Chief Medical Officer, Faculty Practice Plan
- Co-Director of Robotic Surgery

Arnold Bullock, MD
Alan A. and Edith L. Wolff Distinguished Professor in Urology

Douglas E Coplen, MD
Professor of Surgery
Division of Urology Surgery
Director of Pediatric Urology, St. Louis Children’s Hospital

Kefu Du, MD
Assistant Professor of Surgery

R. Sherburne Figenshau, MD
- Taylor Family and Ralph V. Clayman Chair in Minimally Invasive Urology
- Director of Endourology Fellowship
- Professor of Surgery, Division of Urology
- figenshaur@wustl.edu

Jessica File, ANP-BC
Nurse Practitioner
MSN, University of Missouri – St. Louis
BSN, University of Missouri – Columbia

Rachel M. Fricker, ADN, BSN, MSN, FNP
Nurse Practitioner
ADN, Southeastern Illinois College
BSN, Chamberlain University
MSN, FNP, Chamberlain University

Kristina M. Nelson, MSN, RN, ANP-C
Nurse Practitioner
RN, BSN, MSN, Southern Illinois University, Edwardsville and Goldfarb School of Nursing
AANP Certification

Maria Smith, DNP, FNP-C
Nurse Practitioner
DNP, University of Missouri-St. Louis
BS, RN, Goldfarb School of Nursing

Christina Stephan Stark, RN, MSN, CPNP
Nurse Practitioner
RN, MSN, CPNP, University of Missouri—St. Louis

Renee Warmbrodt, RN, MSN, CPNP
Nurse Practitioner
RN, CPNP
BSN, Indiana State University
MSN, St. Louis University