Elizabeth Sims-Day, ND
NPI 1841709714 · Naturopath · Woodinville, WA
Elizabeth Sims-Day, ND is a Naturopath provider in Woodinville, WA (NPI 1841709714).
Provider details
- NPI number
- 1841709714
- Entity type
- Individual
- Primary specialty
- NaturopathOther Service Providers
- Credential
- ND
- Sex
- Female
- Sole proprietor
- Yes
- License
- 60807288 (WA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Progesterone, Micronizedbrand: Progesterone | 25 |
| Liothyronine Sodium | 22 |
| Levothyroxine Sodium | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-09-23
- Last updated
- 2025-03-01
- Certified
- 2025-03-01
Frequently asked questions
- What is Elizabeth Sims-Day's NPI number?
- Elizabeth Sims-Day's National Provider Identifier (NPI) is 1841709714, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Sims-Day's specialty?
- Elizabeth Sims-Day is listed in the NPPES registry with a primary specialty of Naturopath (Other Service Providers).
- Where is Elizabeth Sims-Day located?
- Elizabeth Sims-Day's practice location on file with NPPES is 17924 140th Ave Ne Ste 100, Woodinville, WA 98072-4315.
- What is Elizabeth Sims-Day's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Sims-Day is (425) 408-0040.
- Is Elizabeth Sims-Day's NPI active?
- Yes — Elizabeth Sims-Day's NPI (1841709714) is active in the NPPES registry as of the last update on 2025-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.