NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John H Dayton

Community/Retail Pharmacy in Oakdale, CA · enumerated 2007 · authorized official John Dayton, Owner Pharmacist.

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

National Provider Identifier

1831244201

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name John H Dayton
Other name <Unavail>
Practice address 1390 W H St, Suite F, Oakdale, CA, 95361
Fax (209) 845-9987
Enumeration date Jan 24, 2007
Last updated in NPPES Jun 17, 2008

Taxonomy & classification

3336C0003X Community/Retail Pharmacy Suppliers · License PHY47236 (CA) Primary

Authorized official

Name John Dayton
Title Owner Pharmacist

Other identifiers

Identifier Type State Issuer
PHA472360 Medicaid CA -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for John H Dayton?
NPPES lists John Dayton (Owner Pharmacist) as the authorized official for this organization.
What is the NPI number for John H Dayton?
The NPI for John H Dayton is 1831244201, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-17.