Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John Erdmann, D.C.

Neurology Chiropractor in Pleasant Hill, CA · enumerated 2008.

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

National Provider Identifier

1346410982

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Registry record

Entity type Individual (Type 1)

Name Dr. John Erdmann

Credential D.C.

Sex Male

Practice address Pleasant Hill, CA, 94523

Phone (925) 794-3621

Enumeration date Mar 11, 2008

Last updated in NPPES Oct 7, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111NN0400X Neurology Chiropractor Chiropractic Providers · License DCO258600 (CA) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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

How do I verify John Erdmann's NPI record?

Cross-check NPI 1346410982 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1346410982 active?

Yes, as of the latest NPPES snapshot, NPI 1346410982 is active (record last updated 2010-10-07).

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Ryan Hallmark Chiropractor · Pleasant Hill, CA NPI 1548495567

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-07.