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

Fernando Viejo, 333

Veterinarian in Carolina, PR · enumerated 2013.

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

National Provider Identifier

1497195879

Verified

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Registry record

Entity type Individual (Type 1)

Name Fernando Viejo

Credential 333

Sex Male

Practice address Carolina, PR, 00982

Phone (787) 644-3889

Fax (787) 268-2787

Enumeration date Jun 28, 2013

Last updated in NPPES Jun 28, 2013

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

Taxonomy & licenses

174M00000X Veterinarian Other Service Providers · License 333 (PR) Primary

174MM1900X Medical Research Veterinarian Other Service Providers · License 33 (PR) Secondary

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 Fernando Viejo practice?

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

What is the NPI number for Fernando Viejo?

The National Provider Identifier (NPI) for Fernando Viejo is 1497195879, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-28.