NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Northwestern Medical Lab Inc

Clinical Medical Laboratory in Aguadilla, PR · enumerated 2007 · authorized official Marisol Mendez, President.

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

National Provider Identifier

1124234422

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Northwestern Medical Lab Inc
Practice address 24 Ave Severiano Cuevas Ste 101, Aguadilla Medical Plaza, Aguadilla, PR, 00603
Fax (787) 891-1481
Enumeration date May 15, 2007
Last updated in NPPES Oct 24, 2017

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 309 (PR) Primary

Authorized official

Name Marisol Mendez
Title President

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 is Northwestern Medical Lab Inc located?
The practice location on file with NPPES is in Aguadilla, PR.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-10-24. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-24.