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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John C Michalak, P.A.-C.

Medical Physician Assistant in San Luis Obispo, CA · enumerated 2006.

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

National Provider Identifier

1922057934

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Registry record

Entity type Individual (Type 1)
Name Mr. John C Michalak
Credential P.A.-C.
Sex Male
Practice address 777 E Foothill Blvd, San Luis Obispo, CA, 93405
Phone (805) 762-4348
Fax (805) 541-1167
Enumeration date May 8, 2006
Last updated in NPPES Oct 20, 2026

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA16603 (CA) Secondary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA16603 (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

How do I verify John Michalak's NPI record?
Cross-check NPI 1922057934 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1922057934 active?
Yes, as of the latest NPPES snapshot, NPI 1922057934 is active (record last updated 2026-10-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-20.