John V. Courtney, M.D.
Diagnostic Radiology Physician · Naperville, IL
John V. Courtney, M.D. is a diagnostic radiology physician with a practice address in Naperville, Illinois, and NPI 1194701144, issued on Dec 21, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John V. Courtney
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- Practice location
- 1730 Park St, Naperville, IL 60563
- Phone
- (630) 718-0200
- Enumerated
- Dec 21, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (630) 718-0900
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,874 in Illinois → Look up another NPI →
Also registered at 1730 Park St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Juanito Baladad, M.D.Diagnostic Radiology Physician1689650087
- Benjamin Krumstok, M.D.Diagnostic Radiology Physician1528044997
- Robert Liebman, M.D.Diagnostic Radiology Physician1215912282
Verify John V. Courtney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $262.24
5 payments; by number, the most common kind was food and beverage; the largest payer was Siemens Medical Solutions USA, Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John V. Courtney among 1,874 diagnostic radiology physician records in Illinois
John V. Courtney, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2026 · 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 Naperville → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Juanito Baladad, M.D.Naperville, IL 605631689650087
- Benjamin Krumstok, M.D.Naperville, IL 605631528044997
- Robert Liebman, M.D.Naperville, IL 605631215912282
- Roy Ramsey, M.D.Naperville, IL 605631619203940
- Edgardo ApolinarNaperville, IL 605641427258581
- Tarannum Mujtaba, M.DNaperville, IL 605641891249793
- Gregory Neri, M.D.Naperville, IL 605641679607485
- Kantilal Chandarana, M.D.Plainfield, IL 605441063404580
Common questions
What is John V. Courtney, M.D.'s NPI number?
John V. Courtney, M.D.'s National Provider Identifier (NPI) is 1194701144, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John V. Courtney, M.D. located?
The NPPES record lists a practice address at 1730 Park St, Naperville, IL, 60563. Phone: (630) 718-0200. Providers update this record themselves, so call before visiting.
How can I verify John V. Courtney, M.D.'s license?
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.