Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

JAMES R DAY D.C.
NPI 1033033360
Chiropractor in San Leandro, CA

Q: What is James Day's NPI number?

The NPI number for James Day is 1033033360. It was assigned to this individual provider in the NPPES registry on August 7, 2026.

Q: What is James Day's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Q: When was this NPI record last updated?

The NPPES record for James Day was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days 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 August 07, 2026

450 E 14TH ST, SAN LEANDRO, CA 94577(520) 568-1724 Get Directions Write a Review

NPPES record added: August 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About James R Day D.c. NPPES

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

JAMES R DAY D.C. (NPI 1033033360) is an individual chiropractor in San Leandro, California, licensed in California (DC37373) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1033033360

Entity TypeIndividualMale

Primary Taxonomy111N00000X

Provider Legal NameJAMES R DAYCredential: D.C.

Location Address450 E 14TH STSan Leandro, CA 94577-1810

Mailing Address450 E 14th StSan Leandro, CA 94577-1810 · (520) 568-1724

Phone(520) 568-1724

Sole ProprietorYes

Enumeration DateAugust 7, 2026

NPPES CertifiedAugust 7, 2026

✔ NPI 1033033360 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers

Taxonomy Code111N00000X

License✔ Licensed in CA · DC37373

Definition

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

450 E 14TH ST, San Leandro, CA 94577

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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 James Day's NPI number?

The NPI number for James Day is 1033033360. It was assigned to this individual provider in the NPPES registry on August 7, 2026.

Where is James Day located?

James Day practices at 450 E 14th St, San Leandro, CA 94577. The listed phone number is (520) 568-1724.

What is James Day's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

When was this NPI record last updated?

The NPPES record for James Day was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days 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.