NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brett Michael London, D.O.

Family Medicine Physician in Berkeley, CA · enumerated 2011.

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

National Provider Identifier

1730474933

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Brett Michael London
Credential D.O.
Sex Male
Practice address 1801 Shattuck Ave Ste A, Berkeley, CA, 94709
Fax (415) 252-7176
Enumeration date Jun 15, 2011
Last updated in NPPES Dec 17, 2025

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License TL-4021 (CO) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 13489 (CA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Brett London practice?
The practice location on file with NPPES is in Berkeley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Brett London?
The National Provider Identifier (NPI) for Brett London is 1730474933, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-17.