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Marcia Larson, R.D.
NPI 1689658171 · Registered Dietitian · Scottsdale, AZ
Marcia Larson, R.D. is a Registered Dietitian provider in Scottsdale, AZ (NPI 1689658171).
Provider details
- NPI number
- 1689658171
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- R.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 501282
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
13400 E Shea Blvd
Scottsdale, AZ 85259-5404
Phone: (480) 301-8000
Street-level locationGet directions
Mailing address
13400 E Shea Blvd
Scottsdale, AZ 85259-5404
Registry dates
- Enumerated
- 2005-11-30
- Last updated
- 2007-10-30
Frequently asked questions
- What is Marcia Larson's NPI number?
- Marcia Larson's National Provider Identifier (NPI) is 1689658171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcia Larson's specialty?
- Marcia Larson is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Marcia Larson located?
- Marcia Larson's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259-5404.
- What is Marcia Larson's phone number?
- The practice phone number listed in the NPPES registry for Marcia Larson is (480) 301-8000.
- Is Marcia Larson's NPI active?
- Yes — Marcia Larson's NPI (1689658171) is active in the NPPES registry as of the last update on 2007-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.