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Dr. Ingrid Y Liu, DO

Family Medicine Physician in Oak Park, IL · enumerated 2005 · practices at Oak Park Medical Services PC.

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

National Provider Identifier

1033102744

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Registry record

Entity type Individual (Type 1)
Name Dr. Ingrid Y Liu
Credential DO
Sex Female
Practice address 917 S Oak Park Ave Ste B, Oak Park, IL, 60304
Phone (708) 386-3080
Fax (708) 386-3084
Enumeration date Aug 26, 2005
Last updated in NPPES Mar 22, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036098244 (IL) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
1033102744 Other - NPI
036098244 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

What is the NPI number for Ingrid Liu?
The National Provider Identifier (NPI) for Ingrid Liu is 1033102744, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ingrid Liu practice?
The practice location on file with NPPES is in Oak Park, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-22.