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

Dr. Fernando Gerena Nieves, M.D ,D.A.B.A ,F.ABPM

Pain Medicine (Anesthesiology) Physician in Catano, PR · enumerated 2005.

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

National Provider Identifier

1548245939

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Registry record

Entity type Individual (Type 1)

Name Dr. Fernando Gerena Nieves

Credential M.D ,D.A.B.A ,F.ABPM

Sex Male

Practice address Catano, PR, 00962

Phone (787) 641-9871

Fax (787) 641-9874

Enumeration date Dec 8, 2005

Last updated in NPPES Nov 1, 2018

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

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 12238 (CT) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 12238 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Fernando Gerena Nieves practice?

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

What is the NPI number for Fernando Gerena Nieves?

The National Provider Identifier (NPI) for Fernando Gerena Nieves is 1548245939, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-01.