Ken Kenji Mayemura, O.D.
Optometrist · Seattle, WA
Ken Kenji Mayemura, O.D. is an optometrist with a practice address in Seattle, Washington, and NPI 1821131814, issued on Feb 15, 2007. Check the license (Washington TX3084, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ken Kenji Mayemura
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- TX3084 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3202 W Mcgraw St, Seattle, WA 98199
- Phone
- (206) 284-5850
- Enumerated
- Feb 15, 2007
- Record last updated
- Feb 4, 2025
- Fax
- (206) 600-5850
- Medicaid ID
- 2021095 WA
- Medicare enrollment
- Enrolled (PECOS I20040514000306); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 1992
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,641 in Washington → Look up another NPI →
Verify Ken Kenji Mayemura in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license TX3084Check 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
93 Medicare Part D claims for 20 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Latanoprost39 claims
- Restasis22 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: $124.57
1 payment: food and beverage; the largest payer was Sun Pharmaceutical Industries 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.
Bills Medicare through 2 group practices
- Aeg Washington Professional PCSeattle, WA
- Mayemura, Inc.Kirkland, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ken Kenji Mayemura among 1,641 optometrist records in Washington
Ken Kenji Mayemura, O.D. is one of 1,641 optometrist records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 38% of them.
- NPI issued2007 · 38% of these records are older, 47% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1992 · median 2010 among the 949 with a school on file
- Record last updated2025 · 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Washington
There are 1,641 optometrist records in Washington.
All 1,641 in Washington → Every provider in Seattle → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- W Krattli, ODDes Moines, WA 981981326136987
- William Church, O.D.Everett, WA 982011033191507
- Edward Denz, ODEverett, WA 982011588717110
- Lisa Dote, O.D.Everett, WA 982011962658476
- Jeffry Green, ODEverett, WA 982011386735264
- Zdravka Gueorguieva, ODEverett, WA 982011124095955
- David Harris, O.D.Everett, WA 982011003964396
- Gigi Kan, O.D.Everett, WA 982011508129578
Common questions
What is Ken Kenji Mayemura, O.D.'s NPI number?
Ken Kenji Mayemura, O.D.'s National Provider Identifier (NPI) is 1821131814, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ken Kenji Mayemura, O.D. located?
The NPPES record lists a practice address at 3202 W Mcgraw St, Seattle, WA, 98199. Phone: (206) 284-5850. Providers update this record themselves, so call before visiting.
How can I verify Ken Kenji Mayemura, O.D.'s license?
NPPES lists Washington license number TX3084, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Ken Kenji Mayemura, O.D. prescribe under Medicare Part D?
In 2024, Ken Kenji Mayemura, O.D. had 93 Medicare Part D claims for 20 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.