Kevin O'Brien, MD
Diagnostic Radiology Physician · Chicago, IL
Kevin O'Brien, MD is a diagnostic radiology physician with a practice address in Chicago, Illinois, and NPI 1346686474, issued on May 15, 2013. Check the license (Illinois 036139521, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Kevin O'Brien
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 036139521 IL
Self-reported in NPPES; status is on the state search - Practice location
- 7435 W Talcott Ave, Chicago, IL 60631
- Phone
- (773) 792-5261
- Enumerated
- May 15, 2013
- Record last updated
- Apr 27, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190514000171); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,874 in Illinois → Look up another NPI →
Also registered at 7435 W Talcott Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Logan Abel, MDEmergency Medicine Physician1447900592
- Rachel Abrams, M.D.Emergency Medicine Physician1659786317
- Eva Adams, P.T.Physical Therapist1265780753
- Jennifer AdamsStudent in an Organized Health Care Education/Training Program1710681473
- John Affinito, MDFamily Medicine Physician1316930191
- Omar Ahmed, DOEmergency Medicine Physician1043896947
Verify Kevin O'Brien 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 036139521Check 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
- Radiology IncSouth Bend, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kevin O'Brien among 1,874 diagnostic radiology physician records in Illinois
Kevin O'Brien, 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 2013, is newer than 72% of them.
- NPI issued2013 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2013 · median 2004 among the 1,201 with a school on file
- Record last updated2018 · 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 Chicago → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Warren Brandwein, M.D.Chicago, IL 606311255537858
- Ryan Foley, M.D.Chicago, IL 606311497982334
- Diana Iwanik, MDChicago, IL 606311902824915
- B Kesala, M.D.Chicago, IL 606311578597779
- James Pillars, M.D.Chicago, IL 606311558380923
- Ozair RahmanChicago, IL 606311417483090
- Haran Rajeswaran, MDChicago, IL 606311790208205
- Myra Rapoport, M.D.Chicago, IL 606311396760203
Common questions
What is Kevin O'Brien, MD's NPI number?
Kevin O'Brien, MD's National Provider Identifier (NPI) is 1346686474, issued on May 15, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Kevin O'Brien, MD located?
The NPPES record lists a practice address at 7435 W Talcott Ave, Chicago, IL, 60631. Phone: (773) 792-5261. Providers update this record themselves, so call before visiting.
How can I verify Kevin O'Brien, MD's license?
NPPES lists Illinois license number 036139521, 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.