Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert William Caraballo

Optician in Mayaguez, PR · enumerated 2024.

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

National Provider Identifier

1336989367

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Registry record

Entity type Individual (Type 1)

Name Robert William Caraballo

Sex Male

Practice address 975 Ave Hostos Ste 2100, Mayaguez, PR, 00680

Phone (787) 834-2280

Fax (787) 834-3020

Enumeration date May 28, 2024

Last updated in NPPES May 28, 2024

Taxonomy & licenses

156FX1800X Optician Eye and Vision Services Providers · License 846 (PR) Primary

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

Is NPI 1336989367 active?

Yes, as of the latest NPPES snapshot, NPI 1336989367 is active (record last updated 2024-05-28).

How do I verify Robert Caraballo's NPI record?

Cross-check NPI 1336989367 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-28.