Margaret Diaz, RDN
NPI 1720708241 · Renal Nutrition Registered Dietitian · Pomona, CA
Margaret Diaz, RDN is a Renal Nutrition Registered Dietitian provider in Pomona, CA (NPI 1720708241).
Provider details
- NPI number
- 1720708241
- Entity type
- Individual
- Primary specialty
- Renal Nutrition Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- 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
3 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
- 2022-09-02
- Last updated
- 2022-09-02
- Certified
- 2022-09-02
Frequently asked questions
- What is Margaret Diaz's NPI number?
- Margaret Diaz's National Provider Identifier (NPI) is 1720708241, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Diaz's specialty?
- Margaret Diaz is listed in the NPPES registry with a primary specialty of Renal Nutrition Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Margaret Diaz located?
- Margaret Diaz's practice location on file with NPPES is 2111 N Garey Ave, Pomona, CA 91767-2328.
- What is Margaret Diaz's phone number?
- The practice phone number listed in the NPPES registry for Margaret Diaz is (909) 596-9997.
- Is Margaret Diaz's NPI active?
- Yes — Margaret Diaz's NPI (1720708241) is active in the NPPES registry as of the last update on 2022-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.