Katharine Olsen, RDN, CDR, MS
NPI 1679205603 · Registered Dietitian · Seattle, WA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Olsen, RDN, CDR, MS is a Registered Dietitian provider in Seattle, WA (NPI 1679205603).
Provider details
- NPI number
- 1679205603
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN, CDR, MS
- Sex
- Female
- Sole proprietor
- No
- License
- DI61335594 (WA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
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
100% of core fields populated
- Practice footprint23% of score
2 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.
Practice location
Mailing address
Additional practice locations (1)
- 7500 212th St Sw Ste 116Edmonds, WA 98026-7616Phone: (425) 409-3544
Registry dates
- Enumerated
- 2022-06-28
- Last updated
- 2025-01-28
- Certified
- 2025-01-28
Frequently asked questions
- What is Katharine Olsen's NPI number?
- Katharine Olsen's National Provider Identifier (NPI) is 1679205603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Olsen's specialty?
- Katharine Olsen is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Katharine Olsen located?
- Katharine Olsen's practice location on file with NPPES is 1124 Columbia St Ste 400, Seattle, WA 98104-2053.
- What is Katharine Olsen's phone number?
- The practice phone number listed in the NPPES registry for Katharine Olsen is (206) 215-2440.
- Does Katharine Olsen accept Medicare?
- Katharine Olsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Olsen's NPI active?
- Yes — Katharine Olsen's NPI (1679205603) is active in the NPPES registry as of the last update on 2025-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.