Iwona Steplewska
NPI 1922284835 · Registered Dietitian · Seattle, WA
Iwona Steplewska is a Registered Dietitian provider in Seattle, WA (NPI 1922284835).
Provider details
- NPI number
- 1922284835
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 931099 (AZ)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% 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
Mailing address
Registry dates
- Enumerated
- 2008-01-10
- Last updated
- 2009-10-07
Frequently asked questions
- What is Iwona Steplewska's NPI number?
- Iwona Steplewska's National Provider Identifier (NPI) is 1922284835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Iwona Steplewska's specialty?
- Iwona Steplewska is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Iwona Steplewska located?
- Iwona Steplewska's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2420.
- What is Iwona Steplewska's phone number?
- The practice phone number listed in the NPPES registry for Iwona Steplewska is (206) 744-8540.
- Is Iwona Steplewska's NPI active?
- Yes — Iwona Steplewska's NPI (1922284835) is active in the NPPES registry as of the last update on 2009-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.