NPPES file of Aug 9, 2026

Judith D. Nielsen, M.D.

Internal Medicine Physician · Federal Way, WA

Judith D. Nielsen, M.D. is an internal medicine physician with a practice address in Federal Way, Washington, and NPI 1093871634, issued on Dec 28, 2006. Check the license (Washington MD00026847, 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
1093871634
Name
Judith D. Nielsen
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD00026847 WA
Self-reported in NPPES; status is on the state search
Practice location
31833 Gateway Center Blvd S, Federal Way, WA 98003
Phone
(253) 214-1920
Enumerated
Dec 28, 2006
Record last updated
Jun 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
8115172 WA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 31833 Gateway Center Blvd S

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

  1. Samantha Bergstrom, FNP-BCPrimary Care Nurse Practitioner1093671877
  2. David GrecoFamily Medicine Physician1275111908
  3. Alexandria Majcher, MSWSocial Worker1801139431
  4. Robert McLaughlin, MDInternal Medicine Physician1346394269

Verify Judith D. Nielsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00026847
    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

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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

237 Medicare Part D claims for 104 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. Judith Nielsen237
  2. Specialty average3,176

Most prescribed

  1. Losartan Potassium15 claims
  2. Atorvastatin Calcium14 claims
  3. Levothyroxine Sodium12 claims
  4. 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.

63 internal medicine physician records list a practice address in Federal Way

They are 63 of the 2,770 NPPES records with a practice address in Federal Way, and 3,079 internal medicine physician records in Washington.

Other internal medicine physician records in Washington

  1. Sheida Aalami, M.D.Seattle, WA1730573296
  2. Gloria AbacanProsser, WA1316040298
  3. Ahmad Abadullah, MDUniversity Place, WA1225005721
  4. Rebecca AbaySeattle, WA1528565520
  5. Naseer Abbas, MDTacoma, WA1962769380
  6. James Abbey, M.D.Anacortes, WA1447646039
  7. Joel Abbott, D.O.Tacoma, WA1477752723
  8. Paul Abdallah, MDSeattle, WA1639166119
  9. Abir Abdel-Kader, MDRichland, WA1649407081
  10. Hussein Abdille, MDSeattle, WA1588368831

Common questions

What is Judith D. Nielsen, M.D.'s NPI number?

Judith D. Nielsen, M.D.'s National Provider Identifier (NPI) is 1093871634, issued on Dec 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Judith D. Nielsen, M.D. located?

The NPPES record lists a practice address at 31833 Gateway Center Blvd S, Federal Way, WA, 98003. Phone: (253) 214-1920. Providers update this record themselves, so call before visiting.

How can I verify Judith D. Nielsen, M.D.'s license?

NPPES lists Washington license number MD00026847, 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 Judith D. Nielsen, M.D. prescribe under Medicare Part D?

In 2024, Judith D. Nielsen, M.D. had 237 Medicare Part D claims for 104 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.