What is Mary Nelson's NPI number?

Mary Nelson's National Provider Identifier (NPI) is 1023990546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Nelson's specialty?

Mary Nelson is listed in the NPPES registry with a primary specialty of Nutrition Education Nutritionist (Dietary & Nutritional Service Providers).

Where is Mary Nelson located?

Mary Nelson's practice location on file with NPPES is 735 Morgan Dr, Boulder, CO 80303-2610.

What is Mary Nelson's phone number?

The practice phone number listed in the NPPES registry for Mary Nelson is (720) 352-0883.

Is Mary Nelson's NPI active?

Yes — Mary Nelson's NPI (1023990546) is active in the NPPES registry as of the last update on 2025-07-24.

IndividualActive

Mary Nelson, PHD

NPI 1023990546 · Nutrition Education Nutritionist · Boulder, CO

Mary Nelson, PHD is a Nutrition Education Nutritionist provider in Boulder, CO (NPI 1023990546).

Provider details

NPI number: 1023990546
Entity type: Individual
Primary specialty: Nutrition Education NutritionistDietary & Nutritional Service Providers
Credential: PHD
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Nutrition Education NutritionistPrimary133NN1002X
Dietary & Nutritional Service Providers

Profile Score

Basic profile(48/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in 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

735 Morgan Dr

Boulder, CO 80303-2610

Phone: (720) 352-0883

Street-level locationGet directions

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Mailing address