Gregory Yamaguchi, OD
Optometrist · Beverly Hills, CA
Gregory Yamaguchi, OD is an optometrist with a practice address in Beverly Hills, California, and NPI 1922569938, issued on Mar 31, 2019. Check the license (California OPT34640, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Yamaguchi
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OPT34640 CA
OPT-002373 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 250 N Robertson Blvd Ste 102, Beverly Hills, CA 90211
- Phone
- (310) 385-3450
- Enumerated
- Mar 31, 2019
- Record last updated
- Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201001002517); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 250 N Robertson Blvd Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lisa Dang, M.D.Ophthalmology Physician1083938096
Verify Gregory Yamaguchi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT34640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average optometrist in 2024
184 Medicare Part D claims for 65 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Latanoprost123 claims
- Cyclosporine14 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupPanorama City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Yamaguchi among 8,308 optometrist records in California
Gregory Yamaguchi, OD 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 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2019 · median 2008 among the 3,573 with a school on file
- Record last updated2021 · 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 Beverly Hills → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Kate Fan, ODBeverly Hills, CA 902111316618481
- Peyton Glass, ODBeverly Hills, CA 902111356878565
- Elena Huber, ODBeverly Hills, CA 902111922523315
- May Isbell, M.D.Beverly Hills, CA 902111477549608
- Peter Koh, ODBeverly Hills, CA 902111861488843
- David Krasnow, OD, MPH, MBABeverly Hills, CA 902111609857820
- Jamie Lee, O.D.Beverly Hills, CA 902111215341771
- Charlotte Newman, ODBeverly Hills, CA 902111669601571
Common questions
What is Gregory Yamaguchi, OD's NPI number?
Gregory Yamaguchi, OD's National Provider Identifier (NPI) is 1922569938, issued on Mar 31, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Yamaguchi, OD located?
The NPPES record lists a practice address at 250 N Robertson Blvd Ste 102, Beverly Hills, CA, 90211. Phone: (310) 385-3450. Providers update this record themselves, so call before visiting.
How can I verify Gregory Yamaguchi, OD's license?
NPPES lists California license number OPT34640, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Yamaguchi, OD prescribe under Medicare Part D?
In 2024, Gregory Yamaguchi, OD had 184 Medicare Part D claims for 65 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.