IndividualActive
Barbara Retzlaff, R.D.
NPI 1154389880 · Registered Dietitian · Seattle, WA
Barbara Retzlaff, R.D. is a Registered Dietitian provider in Seattle, WA (NPI 1154389880).
Provider details
- NPI number
- 1154389880
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- R.D.
- Sex
- Female
- License
- DI00001770 (WA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
325 9th Ave
Box 359735
Seattle, WA 98104-2420
Phone: (206) 341-4612
Fax: (206) 341-4614
Street-level locationGet directions
Mailing address
325 9th Ave
Seattle, WA 98104-2420
Registry dates
- Enumerated
- 2006-05-02
- Last updated
- 2007-07-09
Frequently asked questions
- What is Barbara Retzlaff's NPI number?
- Barbara Retzlaff's National Provider Identifier (NPI) is 1154389880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Retzlaff's specialty?
- Barbara Retzlaff is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Barbara Retzlaff located?
- Barbara Retzlaff's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2420.
- What is Barbara Retzlaff's phone number?
- The practice phone number listed in the NPPES registry for Barbara Retzlaff is (206) 341-4612.
- Is Barbara Retzlaff's NPI active?
- Yes — Barbara Retzlaff's NPI (1154389880) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.