Timothy J. Oconnell, MD
Diagnostic Radiology Physician · Clarendon Hills, IL
Timothy J. Oconnell, MD is a diagnostic radiology physician with a practice address in Clarendon Hills, Illinois, and NPI 1194766618, issued on Jun 8, 2006. Check the license (Illinois 036104316, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Timothy J. Oconnell
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 036104316 IL
Self-reported in NPPES; status is on the state search - Practice location
- 201 Norfolk Ave, Clarendon Hills, IL 60514
- Phone
- (312) 318-9827
- Enumerated
- Jun 8, 2006
- Record last updated
- Oct 14, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050111000410); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1998
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,874 in Illinois → Look up another NPI →
Verify Timothy J. Oconnell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036104316Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Suburban Radiologists, S.C.Hinsdale, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy J. Oconnell among 1,874 diagnostic radiology physician records in Illinois
Timothy J. Oconnell, MD is one of 1,874 diagnostic radiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 54% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1998 · median 2004 among the 1,201 with a school on file
- Record last updated2008 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Illinois
There are 1,874 diagnostic radiology physician records in Illinois.
All 1,874 in Illinois → Every provider in Clarendon Hills → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Scott Burstein, M.D.Downers Grove, IL 605151699750760
- Geoffrey Chun, M.D.Downers Grove, IL 605151205811379
- Josie Kim, M.D.Downers Grove, IL 605151235115973
- Sivaraja Kuppuswami, M.D.Downers Grove, IL 605151780747600
- James Lee, M.D.Downers Grove, IL 605151598767295
- Liza Lopez, M.D.Downers Grove, IL 605151134105877
- Howard O'Neil, M.D.Downers Grove, IL 605151194701730
- George Sacy, M.D.Downers Grove, IL 605151568447589
Common questions
What is Timothy J. Oconnell, MD's NPI number?
Timothy J. Oconnell, MD's National Provider Identifier (NPI) is 1194766618, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy J. Oconnell, MD located?
The NPPES record lists a practice address at 201 Norfolk Ave, Clarendon Hills, IL, 60514. Phone: (312) 318-9827. Providers update this record themselves, so call before visiting.
How can I verify Timothy J. Oconnell, MD's license?
NPPES lists Illinois license number 036104316, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.