Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Merary Vega Santiago, PSYD

Psychologist in Isabela, PR · enumerated 2007.

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

National Provider Identifier

1235256397

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Registry record

Entity type Individual (Type 1)

Name Dr. Merary Vega Santiago

Credential PSYD

Sex Female

Practice address Carretera 474 Km 0.4 Felipe Mendez Barrio Coto, Isabela, PR, 00662

Phone (787) 872-3791

Fax (787) 872-3791

Enumeration date Mar 23, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 2093 (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

Is NPI 1235256397 active?

Yes, as of the latest NPPES snapshot, NPI 1235256397 is active (record last updated 2007-07-08).

How do I verify Merary Vega Santiago's NPI record?

Cross-check NPI 1235256397 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.