Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Elvin G. Hernandez Crespo, M.D.

Psychiatry Physician in Mayaguez, PR · enumerated 2007.

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

National Provider Identifier

1255541579

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Registry record

Entity type Individual (Type 1)

Name Elvin G. Hernandez Crespo

Credential M.D.

Sex Male

Practice address Carr Estatal 2 Km 149.9, Mayaguez, PR, 00681

Phone (787) 641-7582

Enumeration date May 23, 2007

Last updated in NPPES Mar 2, 2017

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 18312 (PR) Primary

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License 18312 (PR) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Elvin Hernandez Crespo 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 Elvin Hernandez Crespo?

The National Provider Identifier (NPI) for Elvin Hernandez Crespo is 1255541579, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-02.