Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Greta Obereiner, APN

Pediatric Nurse Practitioner in Champaign, IL · enumerated 2008 · practices at Christie Pharmacy Champaign, LLC.

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

National Provider Identifier

1053599423

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Registry record

Entity type Individual (Type 1)

Name Ms. Greta Obereiner

Credential APN

Sex Female

Practice address 1801 Windsor Rd, Champaign, IL, 61822

Phone (217) 366-8130

Fax (217) 366-6106

Enumeration date Feb 7, 2008

Last updated in NPPES May 14, 2025

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.004053 (IL) Primary

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

Where does Greta Obereiner practice?

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

What is the NPI number for Greta Obereiner?

The National Provider Identifier (NPI) for Greta Obereiner is 1053599423, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-14.