NPI Portal NPI Lookup & Verification

Eric Oak, PHARM.D.

Eric Oak is a Pharmacist provider (Pharmacist) practicing in Lancaster, CA, registered in the NPPES registry with NPI 1033455811 since 2012. The credential PHARMD stands for Doctor of Pharmacy.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1033455811
Entity type Individual (Type 1)
Name Eric Oak
Credential PHARM.D.
Sex Male
Practice address Lancaster, CA, 93534
Phone 6617263806
Enumeration date 2012-12-22
Last updated in NPPES 2014-02-07

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
183500000X Pharmacist Primary 68259 CA

PHARMD — Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential

Copy-ready billing details
Provider: Eric Oak, PHARM.D.
NPI: 1033455811
Taxonomy: 183500000X (Pharmacist)
Address: Lancaster, CA, 93534

Verify this record

Cross-check NPI 1033455811 against the authoritative CMS record: view Eric Oak on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1033455811 active?
Yes — as of the latest NPPES snapshot, NPI 1033455811 is active (record last updated 2014-02-07).
How do I verify Eric Oak's NPI record?
Cross-check NPI 1033455811 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-02-07.