Irene Kristal, RD
NPI 1033363791 · Registered Dietitian · Diamond Bar, CA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irene Kristal, RD is a Registered Dietitian provider in Diamond Bar, CA (NPI 1033363791).
Provider details
- NPI number
- 1033363791
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 862117 (CA)
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
17 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
Mailing address
Registry dates
- Enumerated
- 2008-11-07
- Last updated
- 2013-01-31
Frequently asked questions
- What is Irene Kristal's NPI number?
- Irene Kristal's National Provider Identifier (NPI) is 1033363791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irene Kristal's specialty?
- Irene Kristal is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Irene Kristal located?
- Irene Kristal's practice location on file with NPPES is 21465 Running Branch Rd, Diamond Bar, CA 91765-3751.
- What is Irene Kristal's phone number?
- The practice phone number listed in the NPPES registry for Irene Kristal is (805) 300-0300.
- Does Irene Kristal accept Medicare?
- Irene Kristal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Irene Kristal's NPI active?
- Yes — Irene Kristal's NPI (1033363791) is active in the NPPES registry as of the last update on 2013-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.