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Timothy R O'Leary, M.D.

Radiation Oncology Physician in Festus, MO · enumerated 2006.

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

National Provider Identifier

1700992294

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Registry record

Entity type Individual (Type 1)
Name Timothy R O'Leary
Credential M.D.
Sex Male
Practice address 1350 Us Highway 61, Festus, MO, 63028
Phone (636) 933-0303
Fax (636) 933-0293
Enumeration date Aug 21, 2006
Last updated in NPPES Jun 21, 2021

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 102187 (MO) Primary
2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 036095208 (IL) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
204995302 Medicaid MO -

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 is the NPI number for Timothy O'Leary?
The National Provider Identifier (NPI) for Timothy O'Leary is 1700992294, a Type 1 (individual) record in the CMS NPPES registry.
Where does Timothy O'Leary practice?
The practice location on file with NPPES is in Festus, MO. 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 2021-06-21.