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

Eduardo Alfonso Rios Sr., MD

General Practice Physician in Toa Alta, PR · enumerated 2006.

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

National Provider Identifier

1174580856

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Registry record

Entity type Individual (Type 1)

Name Eduardo Alfonso Rios Sr.

Credential MD

Sex Male

Practice address Toa Alta, PR, 00954

Phone (787) 870-3760

Fax (787) 870-2735

Enumeration date Apr 27, 2006

Last updated in NPPES Apr 2, 2013

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 15565 (PR) Primary

246Z00000X Other Specialist/Technologist Technologists, Technicians & Other Technical Service Providers · License Z022 (PR) Secondary

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
2011301	Other	-	PREFERRED HEALTH
22605R1	Other	PR	SSS
100553	Other	PR	CRUZ AZUL
3115565	Other	-	UIA
825424	Other	-	MEDICARE MUCHCO MAS
22605	Other	-	TRIPLE S

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.

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Frequently asked questions

How do I verify Eduardo Rios's NPI record?

Cross-check NPI 1174580856 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1174580856 active?

Yes, as of the latest NPPES snapshot, NPI 1174580856 is active (record last updated 2013-04-02).

Other providers at this practice address

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William Rios General Practice Physician · Toa Alta, PR NPI 1013928969

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-02.