Chad D. Aschtgen, N.D.
Naturopath · Seattle, WA
Chad D. Aschtgen, N.D. is a naturopath with a practice address in Seattle, Washington, and NPI 1922189380, issued on Oct 18, 2006. Check the license (Washington NT01423, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chad D. Aschtgen
- Credential
- N.D.
- Primary taxonomy
- Naturopath 175F00000X
- License number
- NT01423 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2859 Eastlake Ave E, Seattle, WA 98102
- Phone
- (206) 739-7447
- Enumerated
- Oct 18, 2006
- Record last updated
- Jul 14, 2022
- Fax
- (844) 833-0052
- Entity
- Type 1 · individual
8 nearest naturopath records → All 1,532 in Washington → Look up another NPI →
Also registered at 2859 Eastlake Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Chad D. Aschtgen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license NT01423Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average naturopath in 2024
53 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 21% of claims.
Most prescribed
- Levothyroxine Sodium11 claims
- Synthroid11 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.
Chad D. Aschtgen among 1,532 naturopath records in Washington
Chad D. Aschtgen, N.D. 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 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 92% 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 updated2022 · 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).
526 naturopath records list a practice address in Seattle
They are 526 of the 41,956 NPPES records with a practice address in Seattle, and 1,532 naturopath records in Washington.
All 1,532 in Washington → Every provider in Seattle → Naturopath nationwide →
The 8 naturopath records with the nearest ZIP codes
- Brooke Anthony, NDSeattle, WA 981021659144319
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- Jessica HarriganSeattle, WA 981021043886989
- Atara Jaffe, NDSeattle, WA 981021164149480
- Duncan LynchSeattle, WA 981021477220432
- Sonia MalaniSeattle, WA 981021407319361
- Ksenia Malarkey, NDSeattle, WA 981021326659863
Common questions
What is Chad D. Aschtgen, N.D.'s NPI number?
Chad D. Aschtgen, N.D.'s National Provider Identifier (NPI) is 1922189380, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chad D. Aschtgen, N.D. located?
The NPPES record lists a practice address at 2859 Eastlake Ave E, Seattle, WA, 98102. Phone: (206) 739-7447. Providers update this record themselves, so call before visiting.
How can I verify Chad D. Aschtgen, N.D.'s license?
NPPES lists Washington license number NT01423, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Chad D. Aschtgen, N.D. prescribe under Medicare Part D?
In 2024, Chad D. Aschtgen, N.D. had 53 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.