NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Marien Alvarez

Critical Care Medicine Registered Nurse in Miami Gardens, FL · enumerated 2026.

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

National Provider Identifier

1306771720

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Registry record

Entity type Individual (Type 1)
Name Marien Alvarez
Sex Female
Practice address Miami Gardens, FL, 33056
Enumeration date Jun 16, 2026
Last updated in NPPES Jun 16, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163WC0200X Critical Care Medicine Registered Nurse Nursing Service Providers · License RN9473707 (FL) Primary

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.

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Frequently asked questions

What is the NPI number for Marien Alvarez?
The National Provider Identifier (NPI) for Marien Alvarez is 1306771720, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marien Alvarez practice?
The practice location on file with NPPES is in Miami Gardens, FL. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-16.