John Thomas Carroll, M.D.
Obstetrics & Gynecology Physician · Carol Stream, IL
John Thomas Carroll, M.D. is an obstetrics & gynecology physician with a practice address in Carol Stream, Illinois, and NPI 1457379042, issued on Jul 18, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John Thomas Carroll
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- Practice location
- 503 Thornhill Dr, Carol Stream, IL 60188
- Phone
- (630) 653-4200
- Enumerated
- Jul 18, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110118000095); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1981
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 503 Thornhill Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah SitterFamily Nurse Practitioner1497101513
Verify John Thomas Carroll 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
65% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
58 Medicare Part D claims for 21 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Estradiol14 claims
- Estradiol (Once Weekly)11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
John Thomas Carroll among 2,062 obstetrics & gynecology physician records in Illinois
John Thomas Carroll, M.D. is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1981 · median 2006 among the 1,168 with a school on file
- Record last updated2007 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Illinois
There are 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Carol Stream → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- James Kim, MDCarol Stream, IL 601881275520132
- Chong-Hsiang Liang, MDCarol Stream, IL 601881407086143
- Megan Flahive, D.O.Wheaton, IL 601871114218799
- Barbra Hanna, DOWheaton, IL 601871235322090
- Katherine Hyon, M.D.Wheaton, IL 601871063803476
- Stephanie Pearson, MDWheaton, IL 601871043949951
- Vimala Ramakrishnan, M.D.Wheaton, IL 601871063581064
- Alexandra Rzepka, M.D.Wheaton, IL 601871770993404
Common questions
What is John Thomas Carroll, M.D.'s NPI number?
John Thomas Carroll, M.D.'s National Provider Identifier (NPI) is 1457379042, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas Carroll, M.D. located?
The NPPES record lists a practice address at 503 Thornhill Dr, Carol Stream, IL, 60188. Phone: (630) 653-4200. Providers update this record themselves, so call before visiting.
How can I verify John Thomas Carroll, 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.
How much does John Thomas Carroll, M.D. prescribe under Medicare Part D?
In 2024, John Thomas Carroll, M.D. had 58 Medicare Part D claims for 21 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
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.