What is Doreen Diaz's NPI number?

Doreen Diaz's National Provider Identifier (NPI) is 1023134046, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Doreen Diaz's specialty?

Doreen Diaz is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).

Where is Doreen Diaz located?

Doreen Diaz's practice location on file with NPPES is 1551 E Shaw Ave Ste 128-139, Fresno, CA 93710-8024.

What is Doreen Diaz's phone number?

The practice phone number listed in the NPPES registry for Doreen Diaz is (559) 320-0490.

Is Doreen Diaz's NPI active?

Yes — Doreen Diaz's NPI (1023134046) is active in the NPPES registry as of the last update on 2025-10-23.

IndividualActive

Doreen Diaz, RD, CDE

NPI 1023134046 · Registered Dietitian · Fresno, CA

Doreen Diaz, RD, CDE is a Registered Dietitian provider in Fresno, CA (NPI 1023134046).

Provider details

NPI number: 1023134046
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: RD, CDE
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Registered DietitianPrimary133V00000X
Dietary & Nutritional Service Providers

Profile Score

Detailed profile(83/100 index)

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

1551 E Shaw Ave Ste 128-139

Fresno, CA 93710-8024

Phone: (559) 320-0490

Fax: (559) 320-0494

Street-level locationGet directions

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Mailing address