Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brian D Harris, MD

Addiction Medicine (Anesthesiology) Physician in Menlo Park, CA · enumerated 2008.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1396904785

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Registry record

Entity type Individual (Type 1)

Name Dr. Brian D Harris

Credential MD

Sex Male

Practice address 120b Santa Margarita Ave Ste 211, Menlo Park, CA, 94025

Phone (650) 308-4845

Fax (925) 204-6417

Enumeration date Jun 2, 2008

Last updated in NPPES Mar 18, 2025

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A100114 (CA) Secondary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A100114 (CA) Secondary

207LA0401X Addiction Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License A100114 (CA) Primary

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

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.

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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 Harris?

Brian Harris is registered in NPPES with the primary taxonomy of Addiction Medicine (Anesthesiology) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-18.