Gregory Yamaguchi, OD
NPI 1922569938 · Optometrist · Beverly Hills, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Yamaguchi, OD is a Optometrist provider in Beverly Hills, CA (NPI 1922569938).
Provider details
- NPI number
- 1922569938
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- OPT-002373 (AZ)
Specialties & taxonomies
Eye and Vision Services Providers
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 123 | 36 |
| Cyclosporine | 14 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 3601 S 6th AveTucson, AZ 85723-0001Phone: (520) 792-1450
Registry dates
- Enumerated
- 2019-03-31
- Last updated
- 2021-12-08
- Certified
- 2021-02-26
Frequently asked questions
- What is Gregory Yamaguchi's NPI number?
- Gregory Yamaguchi's National Provider Identifier (NPI) is 1922569938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Yamaguchi's specialty?
- Gregory Yamaguchi is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gregory Yamaguchi located?
- Gregory Yamaguchi's practice location on file with NPPES is 250 N Robertson Blvd Ste 102, Beverly Hills, CA 90211-1767.
- What is Gregory Yamaguchi's phone number?
- The practice phone number listed in the NPPES registry for Gregory Yamaguchi is (310) 385-3450.
- Does Gregory Yamaguchi accept Medicare?
- Gregory Yamaguchi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Yamaguchi's NPI active?
- Yes — Gregory Yamaguchi's NPI (1922569938) is active in the NPPES registry as of the last update on 2021-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.