NPPES file of Aug 9, 2026

Elizabeth Hope Sims-Day, ND

Naturopath · Woodinville, WA

Elizabeth Hope Sims-Day, ND is a naturopath with a practice address in Woodinville, Washington, and NPI 1841709714, issued on Sep 23, 2017. Check the license (Washington 60807288, as entered in NPPES) with the Washington board that licenses this profession; 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
1841709714
Name
Elizabeth Hope Sims-Day
Credential
ND
Primary taxonomy
Naturopath 175F00000X
License number
60807288 WA
Self-reported in NPPES; status is on the state search
Practice location
17924 140TH Ave NE Ste 100, Woodinville, WA 98072
Phone
(425) 408-0040
Enumerated
Sep 23, 2017
Record last updated
Mar 1, 2025
Fax
(425) 381-4833
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 17924 140TH Ave NE Ste 100

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

  1. Allison Apfelbaum, N.D.Naturopath1558774059
  2. Eleonora Naydis, N.D., L.AC.Naturopath1114045549

Verify Elizabeth Hope Sims-Day in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license 60807288
    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
Find the Washington license search

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9% fewer Medicare Part D claims than the average naturopath in 2024

99 Medicare Part D claims for 25 beneficiaries, against an average of 109 among the 1,866 providers of this specialty who prescribed in Part D.

  1. Elizabeth Sims-Day99
  2. Specialty average109

Most prescribed

  1. Progesterone25 claims
  2. Liothyronine Sodium22 claims
  3. Levothyroxine Sodium12 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.

Elizabeth Hope Sims-Day among 1,532 naturopath records in Washington

Elizabeth Hope Sims-Day, ND is one of 1,532 naturopath records with a practice address in Washington. 35% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 68% of them.

  • NPI issued2017 · 68% of these records are older, 28% newer
  • In a Medicare fileYes · 35% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2025 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175F00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 naturopath records list a practice address in Woodinville

They are 22 of the 548 NPPES records with a practice address in Woodinville, and 1,532 naturopath records in Washington.

The 8 naturopath records with the nearest ZIP codes

  1. Allison Apfelbaum, N.D.Woodinville, WA 980721558774059
  2. Sarah Carnes, NDWoodinville, WA 980721316342462
  3. Katherine Dahlgren, N.D.Woodinville, WA 980721114186046
  4. Shannon Hirst, NDWoodinville, WA 980721316126667
  5. Allison Hofmann, N.D.Woodinville, WA 980721417383068
  6. Keyanoosh Khorami, N.D.Woodinville, WA 980721225216369
  7. Colleen Knight, N.D.Woodinville, WA 980721023244720
  8. Maegan Knutson, NDWoodinville, WA 980721255512893

Common questions

What is Elizabeth Hope Sims-Day, ND's NPI number?

Elizabeth Hope Sims-Day, ND's National Provider Identifier (NPI) is 1841709714, issued on Sep 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Hope Sims-Day, ND located?

The NPPES record lists a practice address at 17924 140TH Ave NE Ste 100, Woodinville, WA, 98072. Phone: (425) 408-0040. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Hope Sims-Day, ND's license?

NPPES lists Washington license number 60807288, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Elizabeth Hope Sims-Day, ND prescribe under Medicare Part D?

In 2024, Elizabeth Hope Sims-Day, ND had 99 Medicare Part D claims for 25 beneficiaries; the average among naturopath prescribers was 109. 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.