Dr. William S. Chen, MD
Radiation Oncology (Radiation Oncology Physician)
At a glance
- Medical school
- Yale University School of Medicine (2020)
- Years since graduation
- 6
- In the NPI registry since
- 2020
Licensed in California since 2022, 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. What an NPI is
Education and training
- 2020Medical school: Yale University School of Medicine
- 2020Registered with an NPI (national billing number; not a license date)
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
-
Radiation Oncology Physician primary
CA license A183321 (first issued 2022; current) - Student in an Organized Health Care Education/Training Program
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
- 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.