Chad Aschtgen, N.D.
NPI 1922189380 · Naturopath · Seattle, WA
Chad Aschtgen, N.D. is a Naturopath provider in Seattle, WA (NPI 1922189380).
Provider details
- NPI number
- 1922189380
- Entity type
- Individual
- Primary specialty
- NaturopathOther Service Providers
- Credential
- N.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- NT01423 (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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
5 documented practice locations
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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Levothyroxine Sodiumbrand: Synthroid | 11 |
| Levothyroxine Sodium | 11 |
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
Additional practice locations (4)
- 1717 13th St Fl 1Everett, WA 98201-1621Phone: (425) 297-5500Fax: (425) 297-5530
- 4525 3rd Ave Se Ste 200Lacey, WA 98503-1010Phone: (360) 412-8951Fax: (360) 412-8955
- 1600 E Jefferson StSuite 603Seattle, WA 98122-5698Phone: (206) 726-0034Fax: (206) 726-9434
- 1600 E Jefferson StSuite 603Seattle, WA 98122-5698Phone: (206) 726-0034Fax: (206) 726-9434
Registry dates
- Enumerated
- 2006-10-18
- Last updated
- 2022-07-14
- Certified
- 2022-07-14
Frequently asked questions
- What is Chad Aschtgen's NPI number?
- Chad Aschtgen's National Provider Identifier (NPI) is 1922189380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chad Aschtgen's specialty?
- Chad Aschtgen is listed in the NPPES registry with a primary specialty of Naturopath (Other Service Providers).
- Where is Chad Aschtgen located?
- Chad Aschtgen's practice location on file with NPPES is 2859 Eastlake Ave E, Seattle, WA 98102-3007.
- What is Chad Aschtgen's phone number?
- The practice phone number listed in the NPPES registry for Chad Aschtgen is (206) 739-7447.
- Is Chad Aschtgen's NPI active?
- Yes — Chad Aschtgen's NPI (1922189380) is active in the NPPES registry as of the last update on 2022-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.