Burton Sumner Masem, MD
Family Medicine Physician · Yakima, WA
Burton Sumner Masem, MD is a family medicine physician with a practice address in Yakima, Washington, and NPI 1720541295, issued on Apr 10, 2019. Check the license (Washington MD61332941, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Burton Sumner Masem
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD61332941 WA
Self-reported in NPPES; status is on the state search - Practice location
- 602 E Nob Hill Blvd, Yakima, WA 98901
- Phone
- (509) 248-3334
- Enumerated
- Apr 10, 2019
- Record last updated
- Feb 17, 2023
- Fax
- (509) 453-6144
- Medicare enrollment
- Enrolled (PECOS I20220901001927); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 602 E Nob Hill Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Monisola AdigunPhysician Assistant1942138433
- Emilie Afualo, RNCommunity Health Registered Nurse1790183119
- Ruby Aguilar, FNPNurse Practitioner1063305076
- Joel Alexander, DMDDentist1306583513
- Bashar AlubaidiDentist1295409027
- Zachary AssinkNurse Practitioner1538781851
Verify Burton Sumner Masem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61332941Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average family medicine physician in 2024
1,862 Medicare Part D claims for 213 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 30 claims were for opioids.
Most prescribed
- Atorvastatin Calcium182 claims
- Amlodipine Besylate87 claims
- Lisinopril69 claims
- Rosuvastatin Calcium51 claims
- Metformin Hcl Er49 claims
- Hydrochlorothiazide48 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.
Bills Medicare through one group practice
- Yakima Valley Farm Workers ClinicYakima, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Burton Sumner Masem among 5,534 family medicine physician records in Washington
Burton Sumner Masem, MD 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2009 among the 3,294 with a school on file
- Record last updated2023 · 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).
161 family medicine physician records list a practice address in Yakima
They are 161 of the 3,970 NPPES records with a practice address in Yakima, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Yakima → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jessica Di Nizio, D.O.Yakima, WA 989011346412079
- Joseph Dimeo, D.O.Yakima, WA 989011205848942
- Charles ForsterYakima, WA 989011598859829
- Thomas Gole, DOYakima, WA 989011821063843
- Deepika Goshike, MDYakima, WA 989011629195508
- Joan Harding, MDYakima, WA 989011194708446
- Peter Harveson, MDYakima, WA 989011528154580
- Joel HeinzenYakima, WA 989011174593214
Common questions
What is Burton Sumner Masem, MD's NPI number?
Burton Sumner Masem, MD's National Provider Identifier (NPI) is 1720541295, issued on Apr 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Burton Sumner Masem, MD located?
The NPPES record lists a practice address at 602 E Nob Hill Blvd, Yakima, WA, 98901. Phone: (509) 248-3334. Providers update this record themselves, so call before visiting.
How can I verify Burton Sumner Masem, MD's license?
NPPES lists Washington license number MD61332941, 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 Burton Sumner Masem, MD prescribe under Medicare Part D?
In 2024, Burton Sumner Masem, MD had 1,862 Medicare Part D claims for 213 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.