Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Gary Martin Fishberg, O.D.

Corneal and Contact Management Optometrist in Riverside, CA · enumerated 2007.

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

National Provider Identifier

1891837852

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Registry record

Entity type Individual (Type 1)

Name Dr. Gary Martin Fishberg

Credential O.D.

Sex Male

Practice address Riverside, CA, 92507

Phone (951) 788-2020

Fax (951) 684-2020

Enumeration date Feb 13, 2007

Last updated in NPPES Feb 12, 2020

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 6656 (CA) Secondary

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 6656T (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
SD0066562	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

What is the NPI number for Gary Fishberg?

The National Provider Identifier (NPI) for Gary Fishberg is 1891837852, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gary Fishberg practice?

The practice location on file with NPPES is in Riverside, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-12.