Dominica Dieffenbach, RD
NPI 1013427517 · Registered Dietitian · Phoenix, AZ
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dominica Dieffenbach, RD is a Registered Dietitian provider in Phoenix, AZ (NPI 1013427517).
Provider details
- NPI number
- 1013427517
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- No
- License
- 1004846 (AZ)
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
8 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
- 2017-10-10
- Last updated
- 2017-10-10
Frequently asked questions
- What is Dominica Dieffenbach's NPI number?
- Dominica Dieffenbach's National Provider Identifier (NPI) is 1013427517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dominica Dieffenbach's specialty?
- Dominica Dieffenbach is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Dominica Dieffenbach located?
- Dominica Dieffenbach's practice location on file with NPPES is 3141 N 3rd Ave, Phoenix, AZ 85013-4360.
- What is Dominica Dieffenbach's phone number?
- The practice phone number listed in the NPPES registry for Dominica Dieffenbach is (602) 914-1520.
- Does Dominica Dieffenbach accept Medicare?
- Dominica Dieffenbach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dominica Dieffenbach's NPI active?
- Yes — Dominica Dieffenbach's NPI (1013427517) is active in the NPPES registry as of the last update on 2017-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.