NPI Portal NPI Lookup & Verification

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

Dr. Maralexis Rivera, M.D.

Psychiatric Hospital Unit in San Juan, PR · enumerated 2006.

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

National Provider Identifier

1699873950

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Registry record

Entity type Individual (Type 1)
Name Dr. Maralexis Rivera
Credential M.D.
Sex Female
Practice address San Juan, PR, 00936
Phone (787) 777-3535
Enumeration date Sep 20, 2006
Last updated in NPPES Sep 11, 2025

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

Taxonomy & licenses

261QM0855X Adolescent and Children Mental Health Clinic/Center Ambulatory Health Care Facilities · License 14078 (PR) Secondary
273R00000X Psychiatric Hospital Unit Hospital Units · License 14078 (PR) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

What specialty is Maralexis Rivera?
Maralexis Rivera is registered in NPPES with the primary taxonomy of Psychiatric Hospital Unit. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.