NPI Portal NPI Lookup & Verification

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

Dr. Gary Mark Baron, O.D.

Optometrist in Phoenix, AZ · enumerated 2007.

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

National Provider Identifier

1962542670

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Registry record

Entity type Individual (Type 1)
Name Dr. Gary Mark Baron
Credential O.D.
Sex Male
Practice address Phoenix, AZ, 85037
Phone (623) 936-0613
Fax (623) 936-0653
Enumeration date Feb 8, 2007
Last updated in NPPES Jan 31, 2014

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 1343 (AZ) Secondary
152W00000X Optometrist Eye and Vision Services Providers · License 12497TPA (CA) Secondary
152W00000X Optometrist Eye and Vision Services Providers · License P659A (AZ) 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
12497TPA Other CA OPTOMETRY LICENSE NUMBER
P659A Other AZ THERAPEUTIC DRUG LICENSE
1343 Other AZ OPTOMETRY LICENSE NUMBER

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.

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Frequently asked questions

How do I verify Gary Baron's NPI record?
Cross-check NPI 1962542670 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1962542670 active?
Yes, as of the latest NPPES snapshot, NPI 1962542670 is active (record last updated 2014-01-31).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-31.