Linnet N. Masese, MD, MPH, PHD
Hospitalist Physician · Seattle, WA
Linnet N. Masese, MD, MPH, PHD is a hospitalist physician with a practice address in Seattle, Washington, and NPI 1134782212, issued on Apr 15, 2019. Check the license (Washington MD61191192, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Linnet N. Masese
- Credential
- MD, MPH, PHD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- MD61191192 WA
Self-reported in NPPES; status is on the state search - Practice location
- 747 Broadway, Seattle, WA 98122
- Phone
- (206) 386-6000
- Enumerated
- Apr 15, 2019
- Record last updated
- Sep 26, 2023
- Fax
- (206) 215-6364
- Medicaid ID
- 2133938 WA
- Medicare enrollment
- Enrolled (PECOS I20220823002524); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 793 in Washington → Look up another NPI →
Also registered at 747 Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennifer Achilles, MDPediatrics Physician1891965133
- Michele AdamsSpecialist1619131448
- Jinny Kaye AgpaoaFamily Nurse Practitioner1609686724
Verify Linnet N. Masese in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61191192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average hospitalist physician in 2024
262 Medicare Part D claims for 115 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Furosemide17 claims
- Cefdinir16 claims
- Prednisone12 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 practice group's MIPS final score for 2023 (Medicare payment program): 82.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Swedish Health ServicesSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Linnet N. Masese among 793 hospitalist physician records in Washington
Linnet N. Masese, MD, MPH, PHD is one of 793 hospitalist physician records with a practice address in Washington. 88% 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 80% of them.
- NPI issued2019 · 80% of these records are older, 15% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2004 · median 2011 among the 649 with a school on file
- Record last updated2023 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Washington
There are 793 hospitalist physician records in Washington.
All 793 in Washington → Every provider in Seattle → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Clark Coler, MDSeattle, WA 981221346311347
- Andrew Gatien, MDSeattle, WA 981221063587566
- Robert Gould, MDSeattle, WA 981221649241993
- Adam Haugo, MDSeattle, WA 981221275632390
- Richard Kadera, MDSeattle, WA 981221003867284
- Tina Lee, MDSeattle, WA 981221609864545
- James Nedved, M.D.Seattle, WA 981221285602185
- Revati Nemani, M.D.Seattle, WA 981221063508604
Common questions
What is Linnet N. Masese, MD, MPH, PHD's NPI number?
Linnet N. Masese, MD, MPH, PHD's National Provider Identifier (NPI) is 1134782212, issued on Apr 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Linnet N. Masese, MD, MPH, PHD located?
The NPPES record lists a practice address at 747 Broadway, Seattle, WA, 98122. Phone: (206) 386-6000. Providers update this record themselves, so call before visiting.
How can I verify Linnet N. Masese, MD, MPH, PHD's license?
NPPES lists Washington license number MD61191192, 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 Linnet N. Masese, MD, MPH, PHD prescribe under Medicare Part D?
In 2024, Linnet N. Masese, MD, MPH, PHD had 262 Medicare Part D claims for 115 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Linnet N. Masese, MD, MPH, PHD's MIPS final score?
The 2023 MIPS final score is 82.8 of 100, reported for the practice group. 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.