Dr. William C. Chen, MD
Radiation Oncology (Radiation Oncology Physician)
- Medicare participating
At a glance
- Medical school
- University of California, San Francisco School of Medicine (2018)
- Years since graduation
- 8
- In the NPI registry since
- 2018
- Medicare patients seen, 2024
- 227
Licensed in California since 2019, 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
- 2018Medical school: University of California, San Francisco School of Medicine
- 2018Registered 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 A166045 (first issued 2019; 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
- Marinhealth Medical Center Greenbrae, CA
- Zuckerberg San Francisco General Hosp & Trauma Ctr San Francisco, CA
- Washington Hospital Fremont, 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
- 227
- Services billed
- 1,164
- Patients’ average age
- 73
| Service | Times | Patients |
|---|---|---|
| Ct guidance for insertion of radiation therapy fields | 124 | 31 |
| Calculation of radiation therapy dose | 45 | 14 |
| Radiation treatment management, 5 treatment sessions | 37 | 22 |
| Design and construction of complex radiation treatment device | 32 | 23 |
| Management of cranial lesion surgery using radiation over multiple sessions | 17 | 14 |
| Complex radiation therapy planning | 15 | 14 |
| High precision radiation therapy planning | 13 | 12 |
| Design and construction of radiation treatment device for high precision radiation therapy | 13 | 12 |
| New patient office or other outpatient visit, 60-74 minutes | 12 | 12 |
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 |
|---|---|
| Ondansetron Hcl Other prescribers in San Francisco, CA | 13 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.