Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

G & A Medical Group Corp

Q: What is the NPI number for G & A Medical Group Corp?

The NPI for G & A Medical Group Corp is 1356658546, a Type 2 (organization) record in the CMS NPPES registry.

Health Service Clinic/Center in Yauco, PR · enumerated 2010 · authorized official Gretchen Ortiz, Vp.

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

National Provider Identifier

1356658546

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Registry record

Entity type Organization (Type 2)

Legal business name G & A Medical Group Corp

Practice address 3 Calle Dr Gatel, Yauco, PR, 00698

Phone (787) 856-4747

Fax (787) 836-7991

Enumeration date Sep 9, 2010

Last updated in NPPES Nov 17, 2011

Taxonomy & classification

261QH0100X Health Service Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Gretchen Ortiz

Title Vp

Phone (787) 856-4747

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 the NPI number for G & A Medical Group Corp?

The NPI for G & A Medical Group Corp is 1356658546, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for G & A Medical Group Corp?

NPPES lists Gretchen Ortiz (Vp) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-17.