Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Marianas Physicians Group, LLC

Q: What type of organization is Marianas Physicians Group, LLC?

Marianas Physicians Group, LLC is registered in NPPES as a Obstetrics & Gynecology Physician (its primary provider taxonomy).

Obstetrics & Gynecology Physician in Tamuning, GU · enumerated 2016 · authorized official Antolina Leon Guerrero, General Manager.

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

National Provider Identifier

1952751448

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Marianas Physicians Group, LLC

Practice address 472 Chalan San Antonio, Pemar Place, Tamuning, GU, 96913

Phone (671) 647-1830

Fax (671) 647-1919

Enumeration date Jun 15, 2016

Last updated in NPPES Jun 15, 2016

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License M001039 (GU) Primary

Authorized official

Name Antolina Leon Guerrero

Title General Manager

Phone (671) 647-1414

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 Marianas Physicians Group, LLC?

Marianas Physicians Group, LLC is registered in NPPES as a Obstetrics & Gynecology Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-15.