GARY DUANE MAAS O.D.
NPI 1003960048
Optometrist in Vallejo, CA

Q: What is Gary Maas's NPI number?

The NPI number for Gary Maas is 1003960048. It was assigned to this individual provider in the NPPES registry on January 23, 2007.

Q: What is Gary Maas's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Gary Maas was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 23, 2007

675 SERENO DR., VALLEJO, CA 94589(707) 651-2990(707) 651-2948 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Gary Duane Maas O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GARY DUANE MAAS O.D. (NPI 1003960048) is an individual optometrist in Vallejo, California, licensed in California (OPT5904T) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1003960048

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameGARY DUANE MAASCredential: O.D.

Location Address675 SERENO DR.Vallejo, CA 94589

Mailing Address975 Sereno DrVallejo, CA 94589-2441 · (707) 651-2990 · Fax (707) 651-2948

Phone(707) 651-2990

Fax(707) 651-2948

Sole ProprietorNo

Enumeration DateJanuary 23, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1003960048 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in CA · OPT5904T

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

675 SERENO DR., Vallejo, CA 94589

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Other Identifiers 1

Medicare ID-Type Unspecified8619515CA

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gary Maas's NPI number?

The NPI number for Gary Maas is 1003960048. It was assigned to this individual provider in the NPPES registry on January 23, 2007.

Where is Gary Maas located?

Gary Maas practices at 675 Sereno Dr., Vallejo, CA 94589. The listed phone number is (707) 651-2990.

What is Gary Maas's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for Gary Maas was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.