NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gary G Montalvo Petrovich LLC

Otolaryngology Physician in San Juan, PR · enumerated 2014 · authorized official Gary Montalvo, Dueno.

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

National Provider Identifier

1346654324

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Gary G Montalvo Petrovich LLC
Practice address 400 Ave Domenech Ste 506, Las Americas Prof Center, San Juan, PR, 00918
Phone (787) 754-8625
Fax (787) 754-8648
Enumeration date Jun 17, 2014
Last updated in NPPES Jun 17, 2014

Taxonomy & classification

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 5622 (PR) Primary

Authorized official

Name Gary Montalvo
Title Dueno
Phone (787) 754-8625

Other identifiers

Identifier Type State Issuer
5622 Other PR LIC

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 Gary G Montalvo Petrovich LLC?
The NPI for Gary G Montalvo Petrovich LLC is 1346654324, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Gary G Montalvo Petrovich LLC?
NPPES lists Gary Montalvo (Dueno) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-17.