Marion Armstrong
NPI 1154473908 · Pediatric Nutrition Registered Dietitian · Walnut Creek, CA
Marion Armstrong is a Pediatric Nutrition Registered Dietitian provider in Walnut Creek, CA (NPI 1154473908).
Provider details
- NPI number
- 1154473908
- Entity type
- Individual
- Primary specialty
- Pediatric Nutrition Registered DietitianDietary & Nutritional Service Providers
- Sex
- Female
- Sole proprietor
- No
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
19 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
Mailing address
Registry dates
- Enumerated
- 2007-01-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marion Armstrong's NPI number?
- Marion Armstrong's National Provider Identifier (NPI) is 1154473908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marion Armstrong's specialty?
- Marion Armstrong is listed in the NPPES registry with a primary specialty of Pediatric Nutrition Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Marion Armstrong located?
- Marion Armstrong's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Marion Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Marion Armstrong is (925) 295-4947.
- Is Marion Armstrong's NPI active?
- Yes — Marion Armstrong's NPI (1154473908) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.