Physician Profile
Based in San Francisco, CA, Gregory A. Chinn, M.D./PH.D. is listed in the NPI registry under student in an organized health care education program. Gregory graduated from University of California, San Francisco School of Medicine in 2013. According to Medicare claims data, the services billed most often include anesthesia for lens surgery.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
513 PARNASSUS AVE # S436
San Francisco, CA 94143
13 services · 13 patients · 1 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Anesthesia for lens surgery | Anaesthesia | 00142 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Gregory A. Chinn is a medical trainee in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Student in an Organized Health Care Education Program”.
NPI registry
Gregory A. Chinn is listed at 513 Parnassus Ave # S436, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (415) 514-3781. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Gregory A. Chinn's National Provider Identifier is 1649614595. 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
Gregory A. Chinn attended University of California, San Francisco School of Medicine, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
Gregory A. Chinn has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Gregory A. Chinn provides treatments such as anesthesia for lens surgery. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Gregory A. Chinn. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.