Malcolm C. Masteller, M.D.
Family Medicine Physician · Bremerton, WA
Malcolm C. Masteller, M.D. is a family medicine physician with a practice address in Bremerton, Washington, and NPI 1255368148, issued on Jun 27, 2006. Check the license on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Malcolm C. Masteller
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 8576787-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- Naval Hospital, Bremerton, WA 98312
- Phone
- (360) 475-4426
- Enumerated
- Jun 27, 2006
- Record last updated
- Nov 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (360) 475-4344
- Medicare enrollment
- Enrolled (PECOS I20140306000492); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at Naval Hospital
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Randall Kelley, D.O.Family Medicine Physician1841203130
- Michael Maddox, M.D.Otolaryngology Physician1578533188
Verify Malcolm C. Masteller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical CommissionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average family medicine physician in 2024
7,453 Medicare Part D claims for 407 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 452 claims were for opioids.
Most prescribed
- Atorvastatin Calcium445 claims
- Levothyroxine Sodium316 claims
- Omeprazole230 claims
- Losartan Potassium185 claims
- Gabapentin172 claims
- Metformin Hcl Er162 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): 95.7 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
- University OF Utah Community Physicians GroupSalt Lake City, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Malcolm C. Masteller among 5,534 family medicine physician records in Washington
Malcolm C. Masteller, M.D. is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2006 · median 2009 among the 3,294 with a school on file
- Record last updated2021 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
70 family medicine physician records list a practice address in Bremerton
They are 70 of the 3,142 NPPES records with a practice address in Bremerton, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Bremerton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ronald Dommermuth, M.D.Bremerton, WA 983121194793000
- William Ferman, MDBremerton, WA 983121457344053
- Erica Grogan, D.O.Bremerton, WA 983121306816442
- Andrew Hamilton, M.D.Bremerton, WA 983121639141567
- Noa Hammer, MDBremerton, WA 983121194797126
- Karen Hover, M.D.Bremerton, WA 983121053317404
- Robert Hunter, DOBremerton, WA 983121992795033
- Frank Johnson, M.D.Bremerton, WA 983121396705166
Common questions
What is Malcolm C. Masteller, M.D.'s NPI number?
Malcolm C. Masteller, M.D.'s National Provider Identifier (NPI) is 1255368148, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Malcolm C. Masteller, M.D. located?
The NPPES record lists a practice address at Naval Hospital, Bremerton, WA, 98312. Phone: (360) 475-4426. Providers update this record themselves, so call before visiting.
How can I verify Malcolm C. Masteller, M.D.'s license?
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 Malcolm C. Masteller, M.D. prescribe under Medicare Part D?
In 2024, Malcolm C. Masteller, M.D. had 7,453 Medicare Part D claims for 407 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Malcolm C. Masteller, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.7 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.