What is Alan Clark's NPI number?

Alan Clark's National Provider Identifier (NPI) is 1275689689, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alan Clark's specialty?

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

Where is Alan Clark located?

Alan Clark's practice location on file with NPPES is 644 San Antonio Rd, Mountain View, CA 94040-1304.

What is Alan Clark's phone number?

The practice phone number listed in the NPPES registry for Alan Clark is (650) 948-3260.

Is Alan Clark's NPI active?

Yes — Alan Clark's NPI (1275689689) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Alan Clark, O.D.

NPI 1275689689 · Optometrist · Mountain View, CA

Alan Clark, O.D. is a Optometrist provider in Mountain View, CA (NPI 1275689689).

Provider details

NPI number: 1275689689
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: O.D.
Sex: Male
Sole proprietor: Yes
License: 9523T (CA)

Specialties & taxonomies

OptometristPrimary152W00000XLicense 9523T (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

644 San Antonio Rd

Mountain View, CA 94040-1304

Phone: (650) 948-3260

Street-level locationGet directions

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Mailing address