Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Phillip Polster, OD

Optometrist in Porterville, CA · enumerated 2006.

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

National Provider Identifier

1528162823

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Registry record

Entity type Individual (Type 1)

Name Dr. Phillip Polster

Credential OD

Sex Male

Practice address 1250 W Henderson Ave, Porterville, CA, 93257

Phone (559) 783-8277

Enumeration date Sep 8, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License CAOPT5319TPA (CA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
SD0053190	Medicaid	CA	-
03275	Other	CA	SPECTERA
48737	Other	CA	SAFEGUARD PPO
086510	Other	CA	HEALTH NET
47023	Other	CA	SAFEGUARD HMO
6199	Other	CA	MEDICAL EYE SERVICES

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

Is NPI 1528162823 active?

Yes, as of the latest NPPES snapshot, NPI 1528162823 is active (record last updated 2007-07-08).

How do I verify Phillip Polster's NPI record?

Cross-check NPI 1528162823 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.