Mayumi Endo, M.D
Endocrinology, Diabetes & Metabolism Physician · Seattle, WA
Mayumi Endo, M.D is an endocrinology, diabetes & metabolism physician with a practice address in Seattle, Washington, and NPI 1285946541, issued on Jul 2, 2010. Check the license (Washington MD60693609, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Mayumi Endo
- Credential
- M.D
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- MD60693609 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 520-5000
- Enumerated
- Jul 2, 2010
- Record last updated
- Nov 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 1285946541 WA
- Medicare enrollment
- Enrolled (PECOS I20191221000517); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 224 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mayumi Endo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60693609Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
277 Medicare Part D claims for 72 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium133 claims
- Methimazole32 claims
- Hydrocortisone23 claims
- Synthroid15 claims
- Alendronate Sodium14 claims
- Calcitriol14 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 MIPS final score for 2023 (Medicare payment program): 93.1 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).
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mayumi Endo among 224 endocrinology, diabetes & metabolism physician records in Washington
Mayumi Endo, M.D is one of 224 endocrinology, diabetes & metabolism physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 32% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2006 among the 140 with a school on file
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Washington
There are 224 endocrinology, diabetes & metabolism physician records in Washington.
All 224 in Washington → Every provider in Seattle → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- William Bremner, MDSeattle, WA 981951518042316
- Peter CapellSeattle, WA 981951245315043
- Alan ChaitSeattle, WA 981951932299898
- Nicole Ehrhardt, M.D.Seattle, WA 981951558467506
- Richard FailorSeattle, WA 981951831289784
- Karen Foster-SchubertSeattle, WA 981951124118054
- William Hagopian, MDSeattle, WA 981951841380706
- Jay HeineckeSeattle, WA 981951477643328
Common questions
What is Mayumi Endo, M.D's NPI number?
Mayumi Endo, M.D's National Provider Identifier (NPI) is 1285946541, issued on Jul 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mayumi Endo, M.D located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Mayumi Endo, M.D's license?
NPPES lists Washington license number MD60693609, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mayumi Endo, M.D prescribe under Medicare Part D?
In 2024, Mayumi Endo, M.D had 277 Medicare Part D claims for 72 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Mayumi Endo, M.D's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.