Innovative research, world-class teaching, outstanding care – these are the people who make our mission a reality each and every day.
A majority of our fellowship trained faculty are represented in Best Doctors® in America, Castle Connolly Top Doctors, and Madison Magazine Top Doctors.
We have assembled a broad range of specialty-trained urologists who perform thousands of complex and unique procedures each year, but we measure our success one patient at a time.
Our department has a dedicated and experienced team working to ensure the best possible patient care every day while remaining focused on identifying new treatments and cures for current and future generations.
Urology Faculty
E. Jason Abel, MD, FACS
Credentials: Professor (CHS)
Head, Section of Urologic Oncology
Robert and Dolores K. Schnoes Chair in Urologic Research
Dyad Lead, Inpatient Urology
Position title: Specialties: Minimally Invasive Surgery, Urologic Oncology
Email:
abel
Phone: (608) 263-4563
Ali Antar, MD
Credentials: Assistant Professor (CHS)
Position title: Specialties: Adult Stone Disease, Minimally Invasive Surgery
Email:
aantar
Phone: (608) 262-5440
Sara Best, MD
Credentials: Associate Professor (CT)
Director of Simulation Education
Email:
best
Vinaya Bhatia, MD
Credentials: Assistant Professor (CHS)
Director of Medical Student Programs
Position title: Specialty: Pediatric Urology
Email:
bhatia
Phone: (608) 262-0475
Shannon T. Cannon, MD
Credentials: Assistant Professor (CHS)
Director of DEI, Urology
Position title: Specialty: Pediatric Urology
Email:
cannon
Phone: (608) 265-8574
Walid Farhat, MD,
GPLLM, FRCSC, FAAP, FACS
Credentials: Professor (CHS)
Chief, Division of Pediatric Urology
Mark and Karen Koulogeorge Chair in Urology
Director of Global Urology
Position title: Specialties: Pediatric Urology
Email:
farhat
Phone: (608) 262-0475
Andrew K. Graf, MD
Credentials: Professor (CT)
Position title: Specialties: General Urology
Email:
andrew.graf
Phone: (608) 287-2900
Dan R. Gralnek, MD
Credentials: Associate Professor (CHS)
Director of HoLEP Program
Position title: Specialties: Benign Prostatic Hyperplasia (BPH), General Urology
Email:
gralnek
Phone: (608) 262-0759
Matthew D. Grimes, MD
Credentials: Assistant Professor (CHS)
Position title: Specialties: Genitourinary Reconstruction, Male Sexual Health
Email:
grimes
Phone: (608) 265-8574
David F. Jarrard, MD
Credentials: Professor
Vice Chair in Urology
John P. Livesey Chair in Urologic Oncology
Deputy Director, UW Carbone Cancer Center
Position title: Specialties: Minimally Invasive Surgery, Urologic Oncology
Email:
jarrard
Phone: (608) 262-0759
Margaret Knoedler, MD
Credentials: Assistant Professor (CHS)
Position title: Specialties: Adult Stone Disease, Minimally Invasive Surgery
Email:
knoedler
Phone: (608) 265-8574
Craig J. Kozler, MD
Credentials: Assistant Professor (CT)
Position title: Specialties: General Urology
Email:
kozler
Phone: (608) 263-9534
Frank Lin, MD, MS
Credentials: Assistant Professor (CHS)
Position title: Specialties: Female Pelvic Medicine and Reconstructive Surgery (Urogynecology), Minimally Invasive Surgery
Email:
lin
Phone: (608) 265-8574
Christopher M. Manakas, MD
Credentials: Assistant Professor (CHS)
UW Health Physician Informaticist, Urology
Position title: Specialties: Benign Prostatic Hyperplasia (BPH), General Urology
Email:
manakas
Phone: (608) 263-9534
Sarah E. McAchran, MD, FACS
Credentials: Associate Professor (CHS)
Vice Chair for Faculty Development and Wellness
Dyad Lead, Outpatient Urology
Position title: Specialties: Female Pelvic Medicine and Reconstructive Surgery (Urogynecology)
Email:
mcachran
Phone: (608) 265-8574
Stephen Y Nakada, MD,
FACS, FRCS
Credentials: Professor
Chairman, Department of Urology
The David T. Uehling Chair in Urology
Chief Administrative Physician, UWMF Practice Plan
Position title: Specialties: Adult Stone Disease
Email:
nakada
Phone: (608) 263-1359
David R. Paolone, MD
Credentials: Associate Professor (CHS)
Vice Chair for Regional Urology
Position title: Specialties: General Urology, Male Sexual Health
Email:
david.paolone
Phone: 608-262-5440
Kyle A. Richards, MD, FACS
Credentials: Associate Professor (CHS)
Chief of VA Urology
Position title: Specialties: Urologic Oncology, Minimally Invasive Surgery
Email:
richardsk
Phone: (608) 263-9534
William Ricke, PhD
Credentials: Professor
UWMF Professor of Urologic Research
Director of the George M. O’Brien Center
Email:
rickew
Phone: (608) 265-3202
Michael C. Risk, MD, PhD
Credentials: Associate Professor (CHS)
Position title: Specialties: Urologic Oncology, General Urology
Email:
risk
Phone: (608) 262-0759
Daniel Shapiro, MD
Credentials: Assistant Professor (CHS)
Position title: Specialties: Urologic Oncology, Minimally Invasive Surgery
Email:
shapiro
Phone: (608) 262-0759
Ruthie Su, MD, MS
Credentials: Assistant Professor (CHS)
Position title: Specialties: Minimally Invasive Urologic Surgery, Pediatric Urology
Email:
su
Phone: (608) 262-0475
Daniel H. Williams IV, MD
Credentials: Professor (CHS)
Vice Chair for Education
Residency Program Director
UWMF Professor in Clinical Urology
Position title: Specialties: Male Infertility, Male Sexual Health
Email:
williams
Phone: (608) 263-4563
Advanced Practice Providers
Andrea Christensen, NP
Credentials: Nurse Practitioner
Email:
achristensen
Phone: (608) 263-4757
Xonanet Curtin, NP
Credentials: Nurse Practitioner
Email:
xcurtin
Phone: (608) 263-4757
Kristin L. Doerfer, NP
Credentials: Nurse Practioner
Email:
kdoerfer
Phone: (608) 263-4757
Ashli Ellison, NP
Credentials: Nurse Practitioner
Email:
AEllison
Phone: (608) 263-4757
Jennika L. Finup, NP
Credentials: Pediatric Nurse Practitioner
Email:
JFinup
Phone: (608) 263-6420
Laura Hermsen, PA
Credentials: Physician Assistant
Email:
LHermsen
Phone: (608) 263-4757
Sara Hermsen, PA
Credentials: Physician Assistant
Email:
SHermsen
Phone: (608) 287-2900
Bunmi Kumapayi, RN, MS,
APNP, BC-NP
Credentials: Nurse Practioner
Email:
bkumapayi
Phone: (608) 263-4757
Kali Mesdjian, MSN-RN, CPNP-PC
Credentials: Pediatric Nurse Practitioner
Email:
KMesdjian
Phone: (608) 263-6420
Tayler O'Donnell, NP
Credentials: Pediatric Nurse Practitioner
Email:
to'donnell
Phone: (608) 263-6420
Sadie Siarkiewicz, MPAS
Credentials: Physician Assistant
Email:
SSiarkiewicz
Phone: (608) 287-2900
Susette Thompson, PA-C
Credentials: Physician Assistant
Email:
sthompson6
Phone: (608) 263-4757
Fellows
Residents
Jeremy Goodman, MD
Credentials: PGY-5
University of California, San Francisco School of Medicine, 2019
Emily Davidson, MD
Credentials: PGY-3
University of Wisconsin School of Medicine and Public Health, 2021
Emily Ellmann, MD
Credentials: PGY-2
Jacobs School of Medicine and Biomedical Sciences at the University of Buffalo, 2022
Megan Roedel, MD
Credentials: PGY-2
University of Wisconsin School of Medicine and Public Health, 2022
PhD Faculty & Scientists
Kristina Penniston, PhD
Credentials: Senior Scientist
Email:
penn
Phone: (608) 265-9797
William Ricke, PhD
Credentials: Professor
UWMF Professor of Urologic Research
Director of the George M. O’Brien Center
Email:
rickew
Phone: (608) 265-3202
Affiliate Faculty Researchers
Wei Huang, PhD
Credentials: Professor (CHS), Pathology
Email:
whuang23
Phone: (608) 262-5787
Chad Vezina, PhD
Credentials: Associate Professor
Department of Comparative Biosciences
School of Veterinary Medicine
O’Brien Center Associate Director
Email:
cmvezina
Phone: (408) 890-3235
Rehired Annuitants
Staff
Jennifer Allmaras, MPH
Credentials: Research Program Coordinator
Position title: Collaborating for the Advancement of Interdisciplinary Research in Benign Urology (CAIRIBU), NIH/NIDDK U24 Interactions Core
Katie Apfelbeck
Credentials: Medical Program Assistant
Position title: Administrative support for
Drs. Gralnek, Richards, and Risk
Email:
apfelbeck
Phone: 608-262-0759
Christina Brugger
Credentials: Development Coordinator
Email:
brugger
Phone: (608) 262-0043
Debi Burkhardt
Credentials: Supervising Medical Program Assistant
Position title: Administrative support for Drs. Abel, Best, Jarrard, Manakas, and Williams
Email:
burkhardt
Phone: (608) 263-4563
Stephen J. Hall, CPA
Credentials: Chief Administrative Officer, Urology
Email:
hall
Phone: (608) 263-9032
Valarie Kratochwill
Credentials: Administrative Coordinator
Position title: Administrative support for
Drs. Cost, Grimes, Knoedler, Lin, and McAchran, and Chief Administrative Officer Stephen Hall
Email:
kratochwill
Phone: (608) 265-8574
Tricia A. Maier
Credentials: Senior Executive Assistant
Position title: Administrative support for
Dr. Stephen Y. Nakada ,
Dr. Andrew Graf, and Dr. Craig Kozler
Email:
maier
Phone: (608) 263-1359
Sandra L. Miller
Credentials: Senior Content Editor
Email:
smiller
Phone: (608) 265-8695
Denise A. Mussehl
Credentials: Educational Programs Manager
Email:
mussehl
Phone: (608) 265-2910
Anna Peacock
Credentials: Education Coordinator
Email:
peacock
Phone: (608) 263-1363
Ryan Radke
Credentials: Administrative Specialist for the Ricke Lab and the O'Brien Center
Email:
radke
Phone: 608-265-3278
Julie Rowe
Credentials: Senior Medical Program Assistant
Pediatric Urology Division Coordinator
Position title: Administrative support for Drs. Bhatia, Farhat, and Su
Email:
rowej
Phone: (608) 262-0475
Lori Uttech-Hanson
Credentials: Clinical Research Center Administrator for the O'Brien Center
Email:
uttechhanson
Phone: (920) 296-5930
Deja Vieau
Credentials: Medical Program Assistant
Position title: Administrative support for
Drs. Antar, Cannon, Paolone, and Shapiro
Email:
vieau
Phone: (608) 262-5440
Abby Wiedmer
Credentials: Clinical Research Coordinator II
Email:
wiedmer
Phone: 608-265-9172