Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Timothy P Olenek, D.O.

Specialist in Tinley Park, IL · enumerated 2005.

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

National Provider Identifier

1720073000

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Registry record

Entity type Individual (Type 1)

Name Dr. Timothy P Olenek

Credential D.O.

Sex Male

Practice address 7400 183rd St, Tinley Park, IL, 60477

Phone (708) 614-4000

Enumeration date Sep 13, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 36088607 (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

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 Timothy Olenek?

The National Provider Identifier (NPI) for Timothy Olenek is 1720073000, a Type 1 (individual) record in the CMS NPPES registry.

Where does Timothy Olenek practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.