Residency Leadership

Benjamin R. Lee, MD

Department Chair, Urology

Professor, Urology
The George W Drach, MD Endowed Chair
Director, GU Cancer & Disease Oriented Strategic Planning Team; University of Arizona Cancer Center

Research Interests

Advancing new treatments for renal cell carcinoma
Developing new technologies and techniques for treating urologic oncology

Christian O. Twiss, MD, FACS

Program Director, Residency

Director, Female Urology, Pelvic Medicine, and Pelvic Reconstructive Surgery
Associate Professor, Urology

Research Interests

Incontinence and vaginal prolapse treatment
Urodynamics
Interstitial cystitis
Outcomes research in incontinence and pelvic reconstructive surgery

Juan J. Chipollini, MD

Assistant Professor, Urology


Research Interests

Improving perioperative and oncologic outcomes of urology patients after surgery.
Novel therapies for advanced bladder and penile cancer patients.

Joel T. Funk, MD, FACS

Associate Professor, Urology

Chief of Staff, BUMC-South Campus
Associate Director of Peri-Operative Services, BUMCT/S
Chief of Surgical Services, BUMC-South Campus
Director of Urological Surgery-BUMC-South Campus

Research Interests

MRI imaging and evaluation of pelvic organ prolapse
Long term outcomes from HoLEP
Prostate cancer risk
Histologic evaluation of the pathogenesis of benign prostatic hypertrophy
MR fusion biopsy in the diagnosis and decision-making of prostate cancer

Matthew B. Gretzer, MD, FACS

Professor, Urology

Director, Genitourinary Reconstructive Surgery

Research Interests

New therapy for male incontinence
Urethral stricture management outcomes
Genitourinary trauma management
Voiding fluid dynamics

Suelyn Hall, MD

Assistant Professor, Urology

Sunchin Kim, MD

Assistant Professor, Urology

David T. Tzou, MD

Assistant Professor, Urology