Sienna Miller, ND
Naturopath · Issaquah, WA
Sienna Miller, ND is a naturopath with a practice address in Issaquah, Washington, and NPI 1437828548, issued on Sep 10, 2021. Check the license with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sienna Miller
- Credential
- ND
- Primary taxonomy
- Naturopath 175F00000X
- Practice location
- 450 NW Gilman Blvd Ste 201, Issaquah, WA 98027
- Phone
- (425) 391-5270
- Enumerated
- Sep 10, 2021
- Record last updated
- Sep 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest naturopath records → All 1,532 in Washington → Look up another NPI →
Also registered at 450 NW Gilman Blvd Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tiffany Althaus, NDNaturopath1437681756
- Amanda Andrus, MSNutritionist1003522947
- Aimee Blier, NDNaturopath1700608874
- Tessa Brydon-Yelton, DIPL.OMAcupuncturist1962263434
- Jaime CloydNaturopath1295386589
- David Ege, MDPediatrics Physician1295916559
Verify Sienna Miller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average naturopath in 2024
23 Medicare Part D claims, against an average of 109 among the 1,866 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Sienna Miller among 1,532 naturopath records in Washington
Sienna Miller, 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 2021, is newer than 85% of them.
- NPI issued2021 · 85% of these records are older, 11% 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 updated2021 · 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 Issaquah
They are 22 of the 1,727 NPPES records with a practice address in Issaquah, and 1,532 naturopath records in Washington.
All 1,532 in Washington → Every provider in Issaquah → Naturopath nationwide →
The 8 naturopath records with the nearest ZIP codes
- Tiffany Althaus, NDIssaquah, WA 980271437681756
- Alexandria Easter, N.D.Issaquah, WA 980271548311962
- Jill Ghormley, NDIssaquah, WA 980271710136379
- Steven Macpherson, NDIssaquah, WA 980271548476500
- Katja Magus, N.D.Issaquah, WA 980271407092869
- Patricia Mullen, NDIssaquah, WA 980271104046184
- Summer Nowicki, N.D.Issaquah, WA 980271932231222
- Mary Riley, NDIssaquah, WA 980271609920453
Common questions
What is Sienna Miller, ND's NPI number?
Sienna Miller, ND's National Provider Identifier (NPI) is 1437828548, issued on Sep 10, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Sienna Miller, ND located?
The NPPES record lists a practice address at 450 NW Gilman Blvd Ste 201, Issaquah, WA, 98027. Phone: (425) 391-5270. Providers update this record themselves, so call before visiting.
How can I verify Sienna Miller, ND's license?
Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Sienna Miller, ND prescribe under Medicare Part D?
In 2024, Sienna Miller, ND had 23 Medicare Part D claims; 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.