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

Mr. Nelson Stuart

Clinical Medical Laboratory in Toa Alta, PR · enumerated 2008.

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

National Provider Identifier

1245498021

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Nelson Stuart

Sex Male

Practice address Toa Alta, PR, 00953

Phone (787) 870-2467

Fax (787) 870-0376

Enumeration date May 28, 2008

Last updated in NPPES Jul 8, 2019

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

Taxonomy & licenses

291U00000X Clinical Medical Laboratory Laboratories · License 1618 (PR) Primary

Other identifiers

Identifier	Type	State	Issuer
30977	Other	PR	MEDICARE PROVIDER

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 Stuart practice?

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

What is the NPI number for Nelson Stuart?

The National Provider Identifier (NPI) for Nelson Stuart is 1245498021, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-08.