Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marisela Andrea Alvarez, RDH
Dental Hygienist in Tucson, AZ · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497443923
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Registry record
Entity type Individual (Type 1)
Name Marisela Andrea Alvarez
Credential RDH
Sex Female
Practice address El Rio Health Grant Road, 3655 E Grant Rd, Tucson, AZ, 85716
Phone (520) 670-3909
Enumeration date Apr 24, 2023
Last updated in NPPES Nov 19, 2024
Taxonomy & licenses
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.
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 Marisela Alvarez?
Marisela Alvarez is registered in NPPES with the primary taxonomy of Dental Hygienist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-19.