Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Advantage First Assisting LLC

Surgical Physician Assistant in Mesa, AZ · enumerated 2008 · authorized official Marco Zaldivar, Ownder.

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

National Provider Identifier

1437321023

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Registry record

Entity type Organization (Type 2)

Legal business name Advantage First Assisting LLC

Practice address 8915 E Pampa Ave, Mesa, AZ, 85212

Phone (480) 545-2610

Fax (480) 545-2673

Enumeration date Mar 24, 2008

Last updated in NPPES Jun 20, 2008

Taxonomy & classification

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name Marco Zaldivar

Title Ownder

Phone (480) 545-2610

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-06-20. Verify at npiregistry.cms.hhs.gov.

Where is Advantage First Assisting LLC located?

The practice location on file with NPPES is in Mesa, AZ.

Providers at this address

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Marco Zaldivar Registered Nurse First Assistant · Mesa, AZ NPI 1205004447

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-20.