NPI Portal NPI Lookup & Verification

Michael A Castillo MD, PC

Michael A Castillo MD, PC is a healthcare organization registered as Ambulatory Surgical Clinic/Center in Glendale, AZ, holding Type 2 (organization) NPI 1316361199 since 2014. The authorized official on file is Stephanie Castillo, Practice Manager.

✓ Active NPI ✓ Valid NPI checksum

NPI 1316361199
Entity type Organization (Type 2)
Legal business name Michael A Castillo MD, PC
Practice address 11851 N 51ST AVE STE D120, Glendale, AZ, 85304
Phone 6026808002
Fax 6022429895
Enumeration date 2014-02-13
Last updated in NPPES 2025-10-27

Authorized official

Name Stephanie Castillo
Title Practice Manager
Phone 6022429891

Taxonomy & classification

Taxonomy code Specialty Primary License State
261QA1903X Ambulatory Surgical Clinic/Center Primary

Other identifiers

Identifier Type State Issuer
517419 Medicaid AZ
Copy-ready billing details
Provider: Michael A Castillo MD, PC
NPI: 1316361199
Taxonomy: 261QA1903X (Ambulatory Surgical Clinic/Center)
Address: 11851 N 51ST AVE STE D120, Glendale, AZ, 85304

Providers at this address

NPI Name Type Specialty Location
1750562534 Michael A Castillo MD PC Organization Pain Medicine Physician Glendale, AZ
1609366533 Podiatric Physicians of Arizona, Inc. Organization Foot & Ankle Surgery Podiatrist Glendale, AZ

Verify this record

Cross-check NPI 1316361199 against the authoritative CMS record: view Michael A Castillo MD, PC on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What type of organization is Michael A Castillo MD, PC?
Michael A Castillo MD, PC is registered in NPPES as a Ambulatory Surgical Clinic/Center (its primary provider taxonomy).
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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-10-27.