Physician Profile
Unclaimed ProfileAbout CHEN
William Cheng Chen, MD practises radiation oncology in San Francisco, CA. William is a 2018 graduate of University of California, San Francisco School of Medicine. William is also listed as specialising in student in an organized health care education program. Medicare claims data shows William provided 1,124 services to 608 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Chen?
Dr. Chen is a radiation oncology in San Francisco, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “RADIATION ONCOLOGY”.
NPI registry
What is Dr. Chen's address?
Dr. Chen is listed at 1600 DIVISADERO ST STE H-1031, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Chen?
The number on file is (415) 353-7175. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Chen?
Dr. Chen's National Provider Identifier is 1417452251. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Chen train?
Dr. Chen attended University of California, San Francisco School of Medicine, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chen have?
Dr. Chen has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Chen perform?
According to Medicare billing data, Dr. Chen performs imaging including ct guidance for insertion of radiation therapy fields and calculation of radiation therapy dose, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Chen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chen. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (415) 353-7175
- Email not available
Practice Locations
1600 DIVISADERO ST STE H-1031
San Francisco, CA 94143
Procedures Most Often Billed to Medicare
1,124 services · 608 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
387 |
| Calculation of radiation therapy dose | Imaging | 77300 |
152 |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
118 |
| Design and construction of complex radiation treatment device | Imaging | 77334 |
104 |
| Management of cranial lesion surgery using radiation over multiple sessions | Imaging | 77435 |
53 |
| Design and construction of radiation treatment device for high precision radiation therapy | Imaging | 77338 |
52 |
| High precision radiation therapy planning | Imaging | 77301 |
52 |
| Complex radiation therapy planning | Imaging | 77263 |
48 |
| Obtaining respiratory data needed to develop the optimal radiation treatment | Imaging | 77293 |
28 |
| Design and construction of simple radiation treatment device | Imaging | 77332 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other radiation oncology specialists at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other radiation oncology specialists in San Francisco 6
Same specialty, same city.
Trained at University of California, San Francisco School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at University of California, San Francisco School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ct guidance for insertion of radiation therapy fields 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.