Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

George Jason Antonopoulos, APRN

Family Nurse Practitioner in Willowbrook, IL · enumerated 2020 · practices at Midwest Express Care 2, Inc.

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

National Provider Identifier

1326660069

Verified

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Registry record

Entity type Individual (Type 1)

Name George Jason Antonopoulos

Credential APRN

Sex Male

Practice address Willowbrook, IL, 60527

Phone (561) 734-9003

Enumeration date May 16, 2020

Last updated in NPPES Sep 11, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.021305 (IL) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
209.021305	Medicaid	IL	-

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

Where does George Antonopoulos practice?

The practice location on file with NPPES is in Willowbrook, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for George Antonopoulos?

The National Provider Identifier (NPI) for George Antonopoulos is 1326660069, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-11.