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Oak Park Medical Services PC

Family Medicine Physician in Oak Park, IL · enumerated 2016 · authorized official Ingrid Liu, Owner.

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

National Provider Identifier

1912366295

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Registry record

Entity type Organization (Type 2)
Legal business name Oak Park Medical Services PC
Practice address 917 S Oak Park Ave Ste B, Oak Park, IL, 60304
Fax (708) 386-3084
Enumeration date Feb 16, 2016
Last updated in NPPES Sep 6, 2023

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ingrid Liu
Title Owner

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

What type of organization is Oak Park Medical Services PC?
Oak Park Medical Services PC is registered in NPPES as a Family Medicine Physician (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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-06.