Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John F Olivieri MD Sc

Q: What is the NPI number for John F Olivieri MD Sc?

The NPI for John F Olivieri MD Sc is 1114327459, a Type 2 (organization) record in the CMS NPPES registry.

Family Medicine Physician in Orland Park, IL · enumerated 2014 · authorized official Liz Keil, Office Manager.

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

National Provider Identifier

1114327459

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Registry record

Entity type Organization (Type 2)

Legal business name John F Olivieri MD Sc

Practice address 14315 108th Ave, Suite 230, Orland Park, IL, 60467

Phone (708) 966-9948

Fax (708) 364-8000

Enumeration date Aug 22, 2014

Last updated in NPPES Aug 22, 2014

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036073886 (IL) Primary

Authorized official

Name Liz Keil

Title Office Manager

Phone (708) 460-9833

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

Who is the authorized official for John F Olivieri MD Sc?

NPPES lists Liz Keil (Office Manager) as the authorized official for this organization.

What is the NPI number for John F Olivieri MD Sc?

The NPI for John F Olivieri MD Sc is 1114327459, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-22.