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

Dr. Nelson Rivera Rivera, M.D.

Internal Medicine Physician in Villalba, PR · enumerated 2005.

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

National Provider Identifier

1700875861

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Nelson Rivera Rivera

Credential M.D.

Sex Male

Practice address Villalba, PR, 00766

Phone (178) 784-7777

Fax (178) 784-7777

Enumeration date Oct 20, 2005

Last updated in NPPES Apr 14, 2020

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 8828 (PR) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
28828	Other	-	MCS
200110	Other	PR	MMM
061249	Other	-	CRUZ AZUL
88860RI	Other	-	SSS
0432	Other	PR	IMC
7660024	Other	-	HUMANA

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 Nelson Rivera Rivera practice?

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

What is the NPI number for Nelson Rivera Rivera?

The National Provider Identifier (NPI) for Nelson Rivera Rivera is 1700875861, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-14.