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

Mrs. Nilda J. Alvarez, MD

General Practice Physician in Arroyo, PR · enumerated 2006.

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

National Provider Identifier

1073610333

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Registry record

Entity type Individual (Type 1)

Name Mrs. Nilda J. Alvarez

Credential MD

Sex Female

Practice address Arroyo, PR, 00714

Phone (787) 839-4720

Fax (787) 271-0671

Enumeration date Sep 20, 2006

Last updated in NPPES Dec 12, 2012

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

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 6278 (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 Nilda Alvarez practice?

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

What is the NPI number for Nilda Alvarez?

The National Provider Identifier (NPI) for Nilda Alvarez is 1073610333, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-12.