Dr. William Y. Hoffman, MD
Plastic Surgery (Plastic Surgery Physician)
- Medicare participating
At a glance
- Medical school
- University of Rochester School of Medicine and Dentistry (1977)
- Years since graduation
- 49
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 110
Licensed in California since 1978, 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
- 1977Medical school: University of Rochester School of Medicine and Dentistry
- 2006Registered 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
-
Plastic Surgery Physician primary
CA license G38023 (first issued 1978; current) -
Surgery Physician
CA license G38023 (first issued 1978; 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
Medical groups
- UCSF Medical Group Business Services (1,598 clinicians)
- UCSF Dept of Surgery (215 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
- 110
- Services billed
- 249
- Patients’ average age
- 66
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 10-19 minutes | 37 | 30 |
| Established patient office or other outpatient visit, 20-29 minutes | 34 | 30 |
| New patient office or other outpatient visit, 30-44 minutes | 21 | 21 |
| New patient office or other outpatient visit, 45-59 minutes | 13 | 13 |
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.
Payments from drug and device companies
In 2025, 1 companies reported 1 payments worth $241 in total to this clinician.
| Musculoskeletal Transplant Foundation Inc. | $241 |
|---|
| Food and Beverage | $241 |
|---|
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.