Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mariely Nieves Rivera, PSY.D.

Clinical Psychologist in Fajardo, PR · enumerated 2008.

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

National Provider Identifier

1851569198

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Registry record

Entity type Individual (Type 1)

Name Dr. Mariely Nieves Rivera

Credential PSY.D.

Sex Female

Practice address Centro Comercial Plaza Las Brisas Local #5, Urb. Monte Brisas, Fajardo, PR, 00738

Phone (939) 287-6776

Enumeration date Feb 20, 2008

Last updated in NPPES Sep 17, 2025

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 3015 (PR) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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

What is the NPI number for Mariely Nieves Rivera?

The National Provider Identifier (NPI) for Mariely Nieves Rivera is 1851569198, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mariely Nieves Rivera practice?

The practice location on file with NPPES is in Fajardo, PR. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-17.