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Katherine Mattax, ND
NPI 1053023846 · Naturopath · Seattle, WA
Katherine Mattax, ND is a Naturopath provider in Seattle, WA (NPI 1053023846).
Provider details
- NPI number
- 1053023846
- Entity type
- Individual
- Primary specialty
- NaturopathOther Service Providers
- Credential
- ND
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
Established profile(53/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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.
Practice location
5470 Shilshole Ave Nw Ste 500
Seattle, WA 98107-4040
Phone: (206) 279-6390
Street-level locationGet directions
Mailing address
11740 24th Ave Ne
Seattle, WA 98125-5214
Registry dates
- Enumerated
- 2022-12-23
- Last updated
- 2023-11-02
- Certified
- 2023-11-02
Frequently asked questions
- What is Katherine Mattax's NPI number?
- Katherine Mattax's National Provider Identifier (NPI) is 1053023846, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Mattax's specialty?
- Katherine Mattax is listed in the NPPES registry with a primary specialty of Naturopath (Other Service Providers).
- Where is Katherine Mattax located?
- Katherine Mattax's practice location on file with NPPES is 5470 Shilshole Ave Nw Ste 500, Seattle, WA 98107-4040.
- What is Katherine Mattax's phone number?
- The practice phone number listed in the NPPES registry for Katherine Mattax is (206) 279-6390.
- Is Katherine Mattax's NPI active?
- Yes — Katherine Mattax's NPI (1053023846) is active in the NPPES registry as of the last update on 2023-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.