What is Gary Osias's NPI number?

Gary Osias's National Provider Identifier (NPI) is 1639230923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gary Osias's specialty?

Gary Osias is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).

Where is Gary Osias located?

Gary Osias's practice location on file with NPPES is 2687 Castro Valley Blvd, Castro Valley, CA 94546-5409.

What is Gary Osias's phone number?

The practice phone number listed in the NPPES registry for Gary Osias is (510) 581-1553.

Is Gary Osias's NPI active?

Yes — Gary Osias's NPI (1639230923) is active in the NPPES registry as of the last update on 2015-06-03.

IndividualActive

Gary Osias, O.D.

NPI 1639230923 · Optometrist · Castro Valley, CA

Gary Osias, O.D. is a Optometrist provider in Castro Valley, CA (NPI 1639230923).

Provider details

NPI number: 1639230923
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: O.D.
Sex: Male
Sole proprietor: Yes
License: 07027T (CA)

Specialties & taxonomies

OptometristPrimary152W00000XLicense 07027T (CA)
Eye and Vision Services Providers

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

2687 Castro Valley Blvd

Castro Valley, CA 94546-5409

Phone: (510) 581-1553

Fax: (510) 581-1929

Street-level locationGet directions

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Mailing address