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MONICA DIAZ REGISTERED DIETICIAN
NPI 1730876673
Dietitian, Registered in Mesa, AZ

Active since April 20, 2023
334 W 10TH PL STE 100, MESA, AZ 85201(602) 258-6797 Get Directions Write a Review

NPPES record last updated: June 13, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Monica Diaz Registered Dietician NPPES

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

MONICA DIAZ REGISTERED DIETICIAN (NPI 1730876673) is an individual dietitian, registered in Mesa, Arizona and active in the NPI registry since April 2023.

NPPES Registry Identity

NPI1730876673
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameMONICA DIAZCredential: REGISTERED DIETICIAN
Location Address334 W 10TH PL STE 100Mesa, AZ 85201-3499
Mailing Address3877 N 7th StPhoenix, AZ 85014-5072 · (602) 258-6797
Phone(602) 258-6797
Sole ProprietorNo
Enumeration DateApril 20, 2023
Last NPPES UpdateJune 13, 2025
NPPES CertifiedJune 13, 2025
✔ NPI 1730876673 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
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.
Also ListedNutritionistTaxonomy 133N00000X · License 86148213 (AZ)
334 W 10TH PL STE 100, Mesa, AZ 85201
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Monica Diaz Registered Dietician is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

2

Medicare enrollment records show Monica Diaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Valle Del Sol, Inc.
Same address
Community/Behavioral Health
334 W 10TH PL STE 100
Mesa, AZ 85201
  • Reassigned Medicare billing, Arizona enrollment
  • 75 clinicians in this Medicare group
NPI 1356522684 (602) 258-6797
Alexander Solutions LLC
9.3 mi
Dietitian, Registered
2929 N POWER RD
Mesa, AZ 85215
  • Reassigned Medicare billing, Arizona enrollment
  • 15 clinicians in this Medicare group
NPI 1598221053 (480) 353-8816

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 5

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

VALLE DEL SOL, INC.
Community/Behavioral Health
334 W 10TH PL STE 100
MESA, AZ 85201
Maricopa County (602) 258-6797
JULIE ANN GODEL MS LISAC
Counselor (Addiction (Substance Use Disorder))
334 W 10TH PL STE 100
MESA, AZ 85201
Maricopa County (602) 248-8119
TYLER PEMBERTON PMHNP
Psychiatry & Neurology (Psychiatry)
334 W 10TH PL STE 100
MESA, AZ 85201
Maricopa County (602) 258-6797
HELY ESAA PA
Physician Assistant
334 W 10TH PL STE 100
MESA, AZ 85201
Maricopa County (407) 723-9787
VALLE DEL SOL, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
334 W 10TH PL STE 100
MESA, AZ 85201
Maricopa County (602) 258-6797

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 Monica Diaz's NPI number?

The NPI number for Monica Diaz is 1730876673. It was assigned to this individual provider in the NPPES registry on April 20, 2023.

Where is Monica Diaz located?

Monica Diaz practices at 334 W 10th Pl Ste 100, Mesa, AZ 85201. The listed phone number is (602) 258-6797.

What is Monica Diaz's specialty?

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

Is Monica Diaz enrolled in Medicare?

Yes. Monica Diaz is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Monica Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Monica Diaz reassigns Medicare benefits to 2 organizations: Valle Del Sol, Inc. (Mesa, AZ) and Alexander Solutions LLC (Mesa, AZ). Each 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 Monica Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Monica Diaz accept?

Health plans from Blue Cross Blue Shield of Arizona list Monica Diaz 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 Monica Diaz was last updated on June 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.