DR. JOHN S ZIMMERMAN D.C., L.AC.
NPI 1417985920
Nurse Practitioner - Family in Diamond Bar, CA

Q: What is John Zimmerman's NPI number?

The NPI number for John Zimmerman is 1417985920. It was assigned to this individual provider in the NPPES registry on June 30, 2006.

Q: What is John Zimmerman's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for John Zimmerman was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 30, 2006

566 N DIAMOND BAR BLVD, DIAMOND BAR, CA 91765(909) 861-2611(909) 860-2314 Get Directions Write a Review

NPPES record last updated: May 4, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 4, 2026, Jun 8, 2023 (2 updates tracked since 2023).

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About Dr. John S Zimmerman D.c., L.ac. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN S ZIMMERMAN D.C., L.AC. (NPI 1417985920) is an individual family provider in Diamond Bar, California, licensed in California (95039309) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1417985920

Entity TypeIndividualMale

Primary Taxonomy363LF0000X

Provider Legal NameDR. JOHN S ZIMMERMANCredential: D.C., L.AC.

Location Address566 N DIAMOND BAR BLVDDiamond Bar, CA 91765-1007

Mailing Address566 N Diamond Bar BlvdDiamond Bar, CA 91765-1007 · (909) 861-2611 · Fax (909) 860-2314

Phone(909) 861-2611

Fax(909) 860-2314

Sole ProprietorYes

Enumeration DateJune 30, 2006

Last NPPES UpdateMay 4, 20262 updates tracked since enumeration

NPPES CertifiedMay 4, 2026

✔ NPI 1417985920 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in CA · 95039309

Also ListedChiropractorTaxonomy 111N00000X · License DC26261 (CA)

Also ListedRegistered Nurse · General PracticeTaxonomy 163WG0000X · License 95212015 (CA)

Also ListedAcupuncturistTaxonomy 171100000X · License 13160 (CA)

566 N DIAMOND BAR BLVD, Diamond Bar, CA 91765

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Zimmerman's NPI number?

The NPI number for John Zimmerman is 1417985920. It was assigned to this individual provider in the NPPES registry on June 30, 2006.

Where is John Zimmerman located?

John Zimmerman practices at 566 N Diamond Bar Blvd, Diamond Bar, CA 91765. The listed phone number is (909) 861-2611.

What is John Zimmerman's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

When was this NPI record last updated?

The NPPES record for John Zimmerman was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.