Margaret Griswold, R.D., C.D.
NPI 1528255817 · Registered Dietitian · Sedro Woolley, WA
Margaret Griswold, R.D., C.D. is a Registered Dietitian provider in Sedro Woolley, WA (NPI 1528255817).
Provider details
- NPI number
- 1528255817
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- R.D., C.D.
- Sex
- Female
- Sole proprietor
- No
- License
- DI00000448 (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
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
- 2007-10-01
- Last updated
- 2007-10-01
Frequently asked questions
- What is Margaret Griswold's NPI number?
- Margaret Griswold's National Provider Identifier (NPI) is 1528255817, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Griswold's specialty?
- Margaret Griswold is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Margaret Griswold located?
- Margaret Griswold's practice location on file with NPPES is 2000 Hospital Dr, Sedro Woolley, WA 98284-4327.
- What is Margaret Griswold's phone number?
- The practice phone number listed in the NPPES registry for Margaret Griswold is (360) 856-6021.
- Is Margaret Griswold's NPI active?
- Yes — Margaret Griswold's NPI (1528255817) is active in the NPPES registry as of the last update on 2007-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.