NPPES file of Aug 9, 2026

Michael S. Shamseldin, MD

Family Medicine Physician · Maple Valley, WA

Michael S. Shamseldin, MD is a family medicine physician with a practice address in Maple Valley, Washington, and NPI 1629142922, issued on Nov 20, 2006. Check the license (Washington MD00032335, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629142922
Name
Michael S. Shamseldin
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD00032335 WA
Self-reported in NPPES; status is on the state search
Practice location
27203 216TH Ave SE Ste D, Maple Valley, WA 98038
Phone
(425) 690-3425
Enumerated
Nov 20, 2006
Record last updated
Oct 31, 2025
Fax
(425) 690-9425
Medicaid ID
2333257 WA
Medicare enrollment
Enrolled (PECOS I20120118000570); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 1992
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 27203 216TH Ave SE Ste D

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joshua Kachner, M.D.Internal Medicine Physician1053624866
  2. Valerie Mazziotti, PACPhysician Assistant1841341450
  3. David Sweiger, MDFamily Medicine Physician1811903685
  4. Lauren Valentine, PA-SMedical Physician Assistant1073329777

Verify Michael S. Shamseldin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00032335
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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38% fewer Medicare Part D claims than the average family medicine physician in 2024

2,194 Medicare Part D claims for 203 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 47 claims were for opioids.

  1. Michael Shamseldin2,194
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium221 claims
  2. Lisinopril113 claims
  3. Levothyroxine Sodium94 claims
  4. Rosuvastatin Calcium86 claims
  5. Amlodipine Besylate76 claims
  6. Losartan Potassium71 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 3 group practices

  1. Select Outpatient Services IncGlenview, IL
  2. Select Rehabilitation, LLCGlenview, IL
  3. Valley Medical Group-RentonMaple Valley, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael S. Shamseldin among 5,534 family medicine physician records in Washington

Michael S. Shamseldin, 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 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
  • Graduated1992 · median 2009 among the 3,294 with a school on file
  • Record last updated2025 · 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).

19 family medicine physician records list a practice address in Maple Valley

They are 19 of the 466 NPPES records with a practice address in Maple Valley, and 5,534 family medicine physician records in Washington.

The 8 family medicine physician records with the nearest ZIP codes

  1. Cynthia Cote, M.D.Maple Valley, WA 980381417026535
  2. Stacy Davies, MDMaple Valley, WA 980381861543035
  3. Sukhdip Dhillon, MDMaple Valley, WA 980381932359551
  4. Chester Jangala, MDMaple Valley, WA 980381538115472
  5. Lawrence Madewell, MDMaple Valley, WA 980381548274715
  6. Shannon Markegard, DOMaple Valley, WA 980381124067087
  7. Jessica McAbee, MDMaple Valley, WA 980381720373806
  8. Shreeketa MehtaMaple Valley, WA 980381750589131

Common questions

What is Michael S. Shamseldin, MD's NPI number?

Michael S. Shamseldin, MD's National Provider Identifier (NPI) is 1629142922, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael S. Shamseldin, MD located?

The NPPES record lists a practice address at 27203 216TH Ave SE Ste D, Maple Valley, WA, 98038. Phone: (425) 690-3425. Providers update this record themselves, so call before visiting.

How can I verify Michael S. Shamseldin, MD's license?

NPPES lists Washington license number MD00032335, 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 Michael S. Shamseldin, MD prescribe under Medicare Part D?

In 2024, Michael S. Shamseldin, MD had 2,194 Medicare Part D claims for 203 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.