NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mireya M. Arvizu, R.D.

Registered Dietitian in Tucson, AZ · enumerated 2008.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1063664449

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Mireya M. Arvizu
Credential R.D.
Sex Female
Practice address 2424 N Wyatt Dr Ste 260, Tucson, AZ, 85712
Phone (520) 392-7500
Fax (520) 323-4350
Enumeration date Oct 16, 2008
Last updated in NPPES Nov 8, 2021

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 927227 (AZ) Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Mireya Arvizu?
Mireya Arvizu is registered in NPPES with the primary taxonomy of Registered Dietitian. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-08.