John M. McCarthy, MD
Internal Medicine Physician · Canton, IL
John M. McCarthy, MD is an internal medicine physician with a practice address in Canton, Illinois, and NPI 1033327069, issued on May 21, 2007. Check the license (Illinois 036117191, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John M. McCarthy
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036117191 IL
Self-reported in NPPES; status is on the state search - Practice location
- 180 S Main St, Canton, IL 61520
- Phone
- (309) 647-0201
- Enumerated
- May 21, 2007
- Record last updated
- Jul 25, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (309) 649-8949
- Medicaid ID
- 036-117191 IL
- Medicare enrollment
- Enrolled (PECOS I20080125000141); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2003
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 180 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Bailey, M.D.Surgery Physician1912261306
- William Bailey, M.D.Family Medicine Physician1598020836
- Stephanie Barnes, APNNurse Practitioner1265890685
- Brett Barnhart, MDOrthopaedic Surgery Physician1487762035
- Erin Buckley, M.D.Obstetrics & Gynecology Physician1417261041
- William Buckley, MDSurgery Physician1659489250
Verify John M. McCarthy 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 036117191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
339 Medicare Part D claims for 130 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Prednisone21 claims
- Furosemide19 claims
- Spironolactone18 claims
- Amoxicillin-Clavulanate Potass16 claims
- Pantoprazole Sodium14 claims
- Potassium Chloride14 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.
Bills Medicare through 3 group practices
- Carle Health Care IncorporatedCanton, IL
- Methodist Medical Center OF IllinoisCanton, IL
- Proctor Health SystemsCanton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John M. McCarthy among 7,238 internal medicine physician records in Illinois
John M. McCarthy, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 55% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2003 · median 2003 among the 3,580 with a school on file
- Record last updated2011 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 internal medicine physician records list a practice address in Canton
They are 5 of the 197 NPPES records with a practice address in Canton, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Canton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kenneth Krock, MDCanton, IL 615201699883868
- Benjamin Phillips, MDCanton, IL 615201275678021
- Jimmie Smith, MDCanton, IL 615201194834937
- Gail Williamson, MDCanton, IL 615201376597732
- Christopher Nau, MDChillicothe, IL 615231104023092
- Robert Riech, M.D., MPHChillicothe, IL 615231437225935
- Jason Chamberlin, DOFarmington, IL 615311831207349
- Thaw Tun, MDHenry, IL 615371326142902
Common questions
What is John M. McCarthy, MD's NPI number?
John M. McCarthy, MD's National Provider Identifier (NPI) is 1033327069, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John M. McCarthy, MD located?
The NPPES record lists a practice address at 180 S Main St, Canton, IL, 61520. Phone: (309) 647-0201. Providers update this record themselves, so call before visiting.
How can I verify John M. McCarthy, MD's license?
NPPES lists Illinois license number 036117191, 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.
How much does John M. McCarthy, MD prescribe under Medicare Part D?
In 2024, John M. McCarthy, MD had 339 Medicare Part D claims for 130 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.