Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Maria Esther Cifredo, RN

Occupational Health Registered Nurse in Guaynabo, PR · enumerated 2009.

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

National Provider Identifier

1518196880

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Registry record

Entity type Individual (Type 1)

Name Mrs. Maria Esther Cifredo

Credential RN

Sex Female

Practice address #90 Carr. 165 Centro Internacional De Mercadeo, Suite 303, Guaynabo, PR, 00968

Phone (787) 277-1166

Fax (787) 795-1905

Enumeration date Jul 8, 2009

Last updated in NPPES Nov 19, 2014

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 14110 (PR) Secondary

163WX0106X Occupational Health Registered Nurse Nursing Service Providers · License 14110 (PR) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

How do I verify Maria Cifredo's NPI record?

Cross-check NPI 1518196880 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1518196880 active?

Yes, as of the latest NPPES snapshot, NPI 1518196880 is active (record last updated 2014-11-19).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-19.