DOMINICA WILHEMINA DIEFFENBACH RD
NPI 1013427517
Dietitian, Registered in Phoenix, AZ

Active since October 10, 2017
3141 N 3RD AVE, PHOENIX, AZ 85013(602) 914-1520(602) 266-0545 Get Directions Write a Review

NPPES record last updated: October 10, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dominica Wilhemina Dieffenbach Rd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DOMINICA WILHEMINA DIEFFENBACH RD (NPI 1013427517) is an individual dietitian, registered in Phoenix, Arizona, licensed in Arizona (1004846) and active in the NPI registry since October 2017.

NPPES Registry Identity

NPI1013427517
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameDOMINICA WILHEMINA DIEFFENBACHCredential: RD
Location Address3141 N 3RD AVEPhoenix, AZ 85013-4360
Mailing Address2929 E Thomas RdPhoenix, AZ 85016-8034 · (602) 470-5000 · Fax (602) 470-5064
Fax(602) 266-0545
Sole ProprietorNo
Enumeration DateOctober 10, 2017
✔ NPI 1013427517 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in AZ · 1004846
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
3141 N 3RD AVE, Phoenix, AZ 85013

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dominica Wilhemina Dieffenbach Rd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Dominica Dieffenbach reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pulmonary Disease
2525 E ROOSEVELT ST, MED CLINIC - PULMONARY
Phoenix, AZ 85008
  • Reassigned Medicare billing, Arizona enrollment
  • 1,490 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pediatrics
3141 N 3RD AVE
PHOENIX, AZ 85013
Social Worker (Clinical)
3141 N 3RD AVE
PHOENIX, AZ 85013
Speech-Language Pathologist
3141 N 3RD AVE
PHOENIX, AZ 85013
Nurse Practitioner (Pediatrics)
3141 N 3RD AVE
PHOENIX, AZ 85013
Nurse Practitioner (Adult Health)
3141 N 3RD AVE
PHOENIX, AZ 85013
Nurse Practitioner (Adult Health)
3141 N 3RD AVE
PHOENIX, AZ 85013
Registered Nurse (Case Management)
3141 N 3RD AVE
PHOENIX, AZ 85013
Nurse Practitioner (Pediatrics)
3141 N 3RD AVE
PHOENIX, AZ 85013

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Dominica Dieffenbach's NPI number?

The NPI number for Dominica Dieffenbach is 1013427517. It was assigned to this individual provider in the NPPES registry on October 10, 2017.

Where is Dominica Dieffenbach located?

Dominica Dieffenbach practices at 3141 N 3rd Ave, Phoenix, AZ 85013. The listed phone number is (602) 914-1520.

What is Dominica Dieffenbach's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Dominica Dieffenbach enrolled in Medicare?

Yes. Dominica Dieffenbach is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Dominica Dieffenbach's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dominica Dieffenbach reassigns Medicare benefits to District Medical Group, Inc (Phoenix, AZ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Dominica Dieffenbach's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dominica Dieffenbach accept?

Health plans from Imperial Insurance Companies, Inc. and Oscar Health Plan, Inc. list Dominica Dieffenbach as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Dominica Dieffenbach was last updated on October 10, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.