Grant A. Nakajima
Optometrist · Monterey, CA
Grant A. Nakajima is an optometrist with a practice address in Monterey, California, and NPI 1841298247, issued on Jul 8, 2005. Check the license (California OPT09053T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Grant A. Nakajima
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT09053T CA
Self-reported in NPPES; status is on the state search - Practice location
- 4 Harris CT, Monterey, CA 93940
- Phone
- (831) 375-5141
- Enumerated
- Jul 8, 2005
- Record last updated
- Apr 4, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080424000470); accepts Medicare assignment
- Medical or professional school
- University Of California - School Of Optometry, 1988
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Grant A. Nakajima in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT09053TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average optometrist in 2024
95 Medicare Part D claims for 28 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Latanoprost41 claims
- Timolol Maleate18 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $279.56
3 payments; by number, the most common kind was food and beverage; the largest payer was Dompe US, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Grant A. Nakajima among 8,308 optometrist records in California
Grant A. Nakajima 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. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1988 · median 2008 among the 3,573 with a school on file
- Record last updated2017 · 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Monterey → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Bahar BakhtaryMonterey, CA 939401376958140
- Keith Ballin, O.DMonterey, CA 939401295882314
- Jennell Bockenstedt, ODMonterey, CA 939401952318537
- Mehrak Farahmand, ODMonterey, CA 939401356307516
- Trevor Fogg, O.D.Monterey, CA 939401427258169
- Colvert Gonzales, O.D.Monterey, CA 939401043574197
- Rick Hattori, D.O.Monterey, CA 939401043268766
- Hilda MartinMonterey, CA 939401861578890
Common questions
What is Grant A. Nakajima's NPI number?
Grant A. Nakajima's National Provider Identifier (NPI) is 1841298247, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Grant A. Nakajima located?
The NPPES record lists a practice address at 4 Harris CT, Monterey, CA, 93940. Phone: (831) 375-5141. Providers update this record themselves, so call before visiting.
How can I verify Grant A. Nakajima's license?
NPPES lists California license number OPT09053T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Grant A. Nakajima prescribe under Medicare Part D?
In 2024, Grant A. Nakajima had 95 Medicare Part D claims for 28 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.