Alan Clark, O.D.
Optometrist · Mountain View, CA
Alan Clark, O.D. is an optometrist with a practice address in Mountain View, California, and NPI 1275689689, issued on Jan 26, 2007. Check the license (California 9523T, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Alan Clark
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 9523T CA
Self-reported in NPPES; status is on the state search - Practice location
- 644 San Antonio RD, Mountain View, CA 94040
- Phone
- (650) 948-3260
- Enumerated
- Jan 26, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 644 San Antonio RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yura Kim, O.D.Corneal and Contact Management Optometrist1891060737
Verify Alan Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 9523TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Alan Clark among 8,308 optometrist records in California
Alan Clark, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 34% of them.
- NPI issued2007 · 34% of these records are older, 46% newer
- In a Medicare fileNo · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2007 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 optometrist records list a practice address in Mountain View
They are 32 of the 2,467 NPPES records with a practice address in Mountain View, and 8,308 optometrist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 8,308 in California → Every provider in Mountain View → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Beth Browdy, O.D.Mountain View, CA 940401912025164
- Brent Chinn, O.D.Mountain View, CA 940401023088796
- Emmanuel Dela Cruz, O.D.Mountain View, CA 940401508179706
- Jean Hsu, O.D.Mountain View, CA 940401831169663
- Yue Jin, ODMountain View, CA 940401912627514
- Oanh Kha, O.D.Mountain View, CA 940401679657357
- Sonia Menchavez, O.D.Mountain View, CA 940401851721500
- Tracy Salgado, ODMountain View, CA 940401740701796
Common questions
What is Alan Clark, O.D.'s NPI number?
Alan Clark, O.D.'s National Provider Identifier (NPI) is 1275689689, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Alan Clark, O.D. located?
The NPPES record lists a practice address at 644 San Antonio RD, Mountain View, CA, 94040. Phone: (650) 948-3260. Providers update this record themselves, so call before visiting.
How can I verify Alan Clark, O.D.'s license?
NPPES lists California license number 9523T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.