NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Guam Sleep Center, LLC

Sleep Disorder Diagnostic Clinic/Center in Tamuning, GU · enumerated 2007 · authorized official Divina Mesa, Operations Manager.

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

National Provider Identifier

1699957274

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Guam Sleep Center, LLC
Practice address 535 N. Marine Corps Drive, Unit 1a, Tamuning, GU, 96913
Phone (671) 647-6669
Fax (671) 647-6277
Enumeration date Dec 5, 2007
Last updated in NPPES Jul 28, 2020

Taxonomy & classification

261QM1300X Multi-Specialty Clinic/Center Ambulatory Health Care Facilities Secondary
261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities · License 13-200701593-001 (GU) Primary

Authorized official

Name Divina Mesa
Title Operations Manager
Phone (671) 647-6669

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

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Guam Sleep Center, LLC?
Guam Sleep Center, LLC is registered in NPPES as a Sleep Disorder Diagnostic Clinic/Center (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-28.