NPI Portal NPI Lookup & Verification

Brian C Chen, M.D.

Brian C Chen is a Anesthesiology Physician provider (Anesthesiology) practicing in San Francisco, CA, registered in the NPPES registry with NPI 1285644419 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1285644419
Entity type Individual (Type 1)
Name Brian C Chen
Credential M.D.
Sex Male
Practice address 505 PARNASSUS AVE, San Francisco, CA, 94143
Phone 4154762131
Enumeration date 2006-08-09
Last updated in NPPES 2018-03-17

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207L00000X Anesthesiology Physician Secondary 4864 AK
207L00000X Anesthesiology Physician Primary A68466 CA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
8307 Medicaid AK
Copy-ready billing details
Provider: Brian Chen, M.D.
NPI: 1285644419
Taxonomy: 207L00000X (Anesthesiology Physician)
Address: 505 PARNASSUS AVE, San Francisco, CA, 94143

Other providers at this practice address

NPI Name Type Specialty Location
1710804893 Yehia Fanous Individual Student in an Organized Health Care Education/Training Program San Francisco, CA
1962490847 Jane Kim Individual Pharmacist San Francisco, CA
1053300798 Arup Roy-Burman Individual Pediatric Critical Care Medicine Physician San Francisco, CA
1780673871 Maria Raven Individual Emergency Medical Services (Emergency Medicine) Physician San Francisco, CA
1063403483 Robin Clark Individual Physician Assistant San Francisco, CA
1285615567 Sanziana Roman Individual Surgical Oncology Physician San Francisco, CA
1639150915 Julie Sosa Individual Surgical Oncology Physician San Francisco, CA
1225013923 Kathleen Tong Individual Internal Medicine Physician San Francisco, CA

Verify this record

Cross-check NPI 1285644419 against the authoritative CMS record: view Brian C Chen on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Brian Chen?
Brian Chen is registered in NPPES with the primary taxonomy of Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-03-17.