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

Dr. Elizabeth Hermina Mercado, PSYD

Clinical Psychologist in Mayaguez, PR · enumerated 2007.

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

National Provider Identifier

1346382801

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Registry record

Entity type Individual (Type 1)

Name Dr. Elizabeth Hermina Mercado

Credential PSYD

Sex Female

Practice address Mayaguez, PR, 00680

Phone (787) 805-2900

Fax (787) 834-1924

Enumeration date Feb 13, 2007

Last updated in NPPES May 11, 2023

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 1857 (PR) Primary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 1857 (PR) Secondary

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

Other identifiers

Identifier	Type	State	Issuer
7082	Other	PR	FIRST MEDICAL

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

Where does Elizabeth Hermina Mercado practice?

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

What is the NPI number for Elizabeth Hermina Mercado?

The National Provider Identifier (NPI) for Elizabeth Hermina Mercado is 1346382801, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Frances Acevedo Perez General Practice Physician · Mayaguez, PR NPI 1689781312 Efrain Arroyo Pena General Practice Physician · Mayaguez, PR NPI 1982745063 Ana A Caban Nutritionist · Mayaguez, PR NPI 1053453514 Ines Suarez Dentist · Mayaguez, PR NPI 1275675761 Olga Perez Other Specialist/Technologist · Mayaguez, PR NPI 1164564118 Adiliz E Vargas Other Specialist/Technologist · Mayaguez, PR NPI 1184766180 Marielly Rodriguez Other Specialist/Technologist · Mayaguez, PR NPI 1861535700 Lyselle Ramirez Coreano Pediatrics Physician · Mayaguez, PR NPI 1578606836

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-11.