Ray Oyakawa, M.D.
Ophthalmology Physician · Torrance, CA
Ray Oyakawa, M.D. is an ophthalmology physician with a practice address in Torrance, California, and NPI 1467541938, issued on Oct 12, 2006. Check the license (California G44155, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ray Oyakawa
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G44155 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20911 Earl St, Torrance, CA 90503
- Phone
- (310) 792-1010
- Enumerated
- Oct 12, 2006
- Entity
- Type 1 · individual
Also registered at 20911 Earl St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ray Oyakawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G44155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
76% fewer Medicare Part D claims than the average ophthalmology physician in 2024
359 Medicare Part D claims for 86 beneficiaries, against an average of 1,490 among the 16,109 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Latanoprost53 claims
- Timolol Maleate37 claims
- Prednisolone Acetate24 claims
- Lumigan23 claims
- Difluprednate22 claims
- Moxifloxacin21 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.
The Medicare quality score for 2023: 81.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Ophthalmology Physician providers in California
There are 2,888 ophthalmology physician records in California.
Other ophthalmology physician records in California
- Sam Abbassi, MD, MSWest Hills, CA1881937720
- Richard Abbott, M.D.San Francisco, CA1346276573
- Nizar Abdelfattah, MDPasadena, CA1801359393
- Parastou Abedi, MDAliso Viejo, CA1720067333
- Shahla Abedi, MDAliso Viejo, CA1467431072
- Lilit Ablabutyan, M.D.Glendale, CA1497013064
- Thomas Ableman, M.D.San Diego, CA1558415067
- Nathan Abraham, M.D.Valencia, CA1306224456
- James Abrams, M.D.San Bruno, CA1912903329
- Adam Abroms, MDWestlake Village, CA1497743702
Common questions
What is Ray Oyakawa, M.D.'s NPI number?
Ray Oyakawa, M.D.'s National Provider Identifier (NPI) is 1467541938, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ray Oyakawa, M.D. located?
The NPPES record lists a practice address at 20911 Earl St, Torrance, CA, 90503. Phone: (310) 792-1010. Providers update this record themselves, so call before visiting.
How can I verify Ray Oyakawa, M.D.'s license?
NPPES lists California license number G44155, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ray Oyakawa, M.D. prescribe under Medicare Part D?
In 2024, Ray Oyakawa, M.D. had 359 Medicare Part D claims for 86 beneficiaries; the average among ophthalmology physician prescribers was 1,490. Part D covers Medicare prescriptions only.
What is Ray Oyakawa, M.D.'s Medicare quality score?
The 2023 MIPS final score is 81.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.