Brent Keith Hollenbeck, MD
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About
Brent K. Hollenbeck, M.D., M.S. is a practicing urologic oncologist and has been on faculty at the University of Michigan since 2003. A graduate of the Indiana University School of Medicine, Dr. Hollenbeck completed his residency in urology and fellowship training in oncology at the University of Michigan. During the past 5 years, his clinical practice has grown in patient volume, which complements his research imperative. Over this time, he has become increasingly specialized in the care of patients with prostate and bladder cancers. This focus has afforded him the ability to maintain his commitment to research while continuing to deliver cutting-edge, high quality care.
Dr. Hollenbeck is currently an Associate Professor of Urology and the Director of the Herbert H. and Grace A. Dow Division of Health Services Research at the University of Michigan. He is firmly committed to training the future leaders in urologic health services research. Further, he strongly believes that populating the surgical specialties with health services researchers will yield long-term benefits to both our specialty and our patients.
When he is not engaged in clinical and research pursuits, Brent is a very active swimmer, runner and fly fisherman (especially for steelhead). Perhaps most importantly, however, he enjoys spending the bulk of his free time with his wife and two daughters. The Hollenbecks are avid fans of Michigan athletics and look forward to cheering on the Wolverines on football Saturdays.
Areas of Practice
Prostate and bladder cancers; Robotic Surgery
Locations
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Urologic Oncology Clinic | Rogel Cancer Center 1500 E Medical Center Dr
Floor B1 Reception E
Ann Arbor, MI 48109-5913Get Directions
Insurance Accepted
University of Michigan Health participates with most health insurance plans.
Education & Training
Medical School or Training
Residency
Fellowships
Board Certifications
Professional Organizations
Research Overview
During his fellowship training, Dr. Hollenbeck completed a Masters of Science program in research and design and biostatistics at the University of Michigan's School of Public Health. His research interests are policy-oriented and are focused squarely on understanding the upstream influences and downstream consequences of variation in physician practice style. His current initiatives include measuring effects of physician financial incentives and identifying best practices for early stage bladder cancer. The former consists of a 4-year R01, from the Agency for Healthcare Research and Quality, to better understand relationships between ambulatory surgery centers and outpatient surgery use. The latter is part of a 5-year award, funded by the American Cancer Society, using alternative statistical methods (e.g., instrumental variables analysis) to make inference from observation data.
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Patient Ratings & Comments
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Patient Ratings
42 Patient Ratings
Patient Comments
January 20, 2026 - "I'm glad I came for the visit Dr. Hollenbeck was very professional and informative took the time to make sure I was well-informed and made me feel secure in choosing him as my doctor!!!"
January 11, 2026 - "Dr Hollenbeck was professionally friendly, efficient, detailed, to the point, exuded confidence and competence - exactly what I was looking for in a top notch surgeon."
November 25, 2025 - "Dr. Hollenbeck was direct, thorough and took time to answer all my questions and concerns."
November 4, 2025 - "Dr. Hollenbeck is a life-saver! I owe him a lot. I highly recommend Dr. Hollenbeck."
October 17, 2025 - "He was arrogant, and didn't seem to care if I showed any interest in pursuing further treatment with your hospital. If I, or any other person that I know, needs to be evaluated for cancer, I will either tell them not to get associated with Hollenbeck, or go to Cleveland Clinic."
September 9, 2025 - "Though test results confirmed [...], Dr. Hollenbeck continued to position [...]. I would have appreciated a more balanced approach, and positioning of possible focal therapies offered. I feel like I was only given a postion of the full story."
August 19, 2025 - "Dr Hollenbeck was amazing. Very low key and answered all my questions."