Dr. Benjamin N. Breyer, M.D.
Urology (Urology Physician)
- Medicare participating
At a glance
- Medical school
- University of Chicago, Pritzker School of Medicine (2003)
- Years since graduation
- 23
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 413
Licensed in California since 2005, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2003Medical school: University of Chicago, Pritzker School of Medicine
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Urology Physician primary
CA license A91487 (first issued 2005; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- UCSF Medical Center San Francisco, CA
- John Muir Medical Center - Walnut Creek Campus Walnut Creek, CA
- UCSF Health St. Mary's Hospital San Francisco, CA
Medical groups
- University of California San Francisco (1,839 clinicians)
- UCSF Medical Group Business Services (1,598 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 413
- Services billed
- 1,283
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 226 | 177 |
| Diagnostic exam of bladder and urethra using an endoscope | 132 | 126 |
| Established patient office or other outpatient visit, 30-39 minutes | 126 | 115 |
| Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 70 | 21 |
| New patient office or other outpatient visit, 30-44 minutes | 60 | 60 |
| New patient office or other outpatient visit, 45-59 minutes | 52 | 52 |
| Insertion of inflatable urethra or bladder neck sphincter | 25 | 25 |
| Incision of urethra using an endoscope | 24 | 24 |
| Review by radiologist of urinary bladder and urethra images with contrast | 21 | 21 |
| Injection procedure through bladder and urethra for x-ray imaging | 21 | 21 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Myrbetriq (mirabegron) Other prescribers in San Francisco, CA | 50 |
| Tamsulosin Hcl Other prescribers in San Francisco, CA | 50 |
| Sulfamethoxazole-Trimethoprim (sulfamethoxazole/trimethoprim) Other prescribers in San Francisco, CA | 43 |
| Methenamine Hippurate Other prescribers in San Francisco, CA | 39 |
| Imipramine Hcl Other prescribers in San Francisco, CA | 38 |
| Gemtesa (vibegron) Other prescribers in San Francisco, CA | 28 |
| Finasteride Other prescribers in San Francisco, CA | 24 |
| Terazosin Hcl Other prescribers in San Francisco, CA | 12 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 4 companies reported 19 payments worth $15,170 in total to this clinician.
| Endo USA, Inc. | $13,061 |
|---|---|
| Leo Pharma As | $1,690 |
| Boston Scientific Corporation | $270 |
| Medtronic, Inc. | $148 |
| Consulting Fee | $12,370 |
|---|---|
| Travel and Lodging | $2,100 |
| Food and Beverage | $700 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Endo USA, Inc. May 21, 2025 | Consulting Fee XIAFLEX · UROLOGY | $10,680 |
| Leo Pharma As Jul 29, 2025 | Consulting Fee | $1,690 |
| Endo USA, Inc. May 3, 2025 | Travel and Lodging XIAFLEX · UROLOGY · travel to WAYZATA, MN · in-kind | $1,194 |
| Endo USA, Inc. May 3, 2025 | Travel and Lodging XIAFLEX · UROLOGY · travel to WAYZATA, MN · in-kind | $558 |
| Endo USA, Inc. May 2, 2025 | Travel and Lodging XIAFLEX · UROLOGY · travel to WAYZATA, MN · in-kind | $255 |
| Endo USA, Inc. May 21, 2025 | Travel and Lodging XIAFLEX · UROLOGY · travel to WAYZATA, MN | $53.00 |
| Endo USA, Inc. May 3, 2025 | Travel and Lodging XIAFLEX · UROLOGY · travel to WAYZATA, MN · in-kind | $40.46 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.