Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John K Ludington, P.A. - C

Surgical Physician Assistant in Los Angeles, CA · enumerated 2006.

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

National Provider Identifier

1871662213

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Registry record

Entity type Individual (Type 1)

Name John K Ludington

Credential P.A. - C

Sex Male

Practice address 1520 San Pablo St Ste 2000, Los Angeles, CA, 90033

Phone (323) 442-6950

Fax (323) 442-6938

Enumeration date Nov 8, 2006

Last updated in NPPES Nov 27, 2023

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA15177 (CA) Primary

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

Where does John Ludington practice?

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

What is the NPI number for John Ludington?

The National Provider Identifier (NPI) for John Ludington is 1871662213, 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 2023-11-27.