Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Claude T.H. Friedmann, M.D.

Specialist in Torrance, CA · enumerated 2006.

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

National Provider Identifier

1558325621

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Registry record

Entity type Individual (Type 1)

Name Claude T.H. Friedmann

Credential M.D.

Sex Male

Practice address 23326 Hawthorne Blvd, Suite #375, Torrance, CA, 90505

Phone (310) 373-0527

Fax (310) 373-6915

Enumeration date Apr 14, 2006

Last updated in NPPES May 7, 2009

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G018298 (CA) Primary

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
W9172	Other	CA	MEDICARE PIN

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 Claude Friedmann practice?

The practice location on file with NPPES is in Torrance, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Claude Friedmann?

The National Provider Identifier (NPI) for Claude Friedmann is 1558325621, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-07.