George C. Karabelas, MD
Internal Medicine Physician · Chicago, IL
George C. Karabelas, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1437224128, issued on Nov 21, 2006. Check the license (Illinois 036071647, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- George C. Karabelas
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036071647 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3960 N Harlem, Chicago, IL 60634
- Phone
- (773) 658-2300
- Enumerated
- Nov 21, 2006
- Record last updated
- Mar 7, 2023
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify George C. Karabelas 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 036071647Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
375 Medicare Part D claims for 59 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium54 claims
- Omeprazole30 claims
- Losartan Potassium29 claims
- Amlodipine Besylate24 claims
- Pantoprazole Sodium21 claims
- Clopidogrel17 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.
George C. Karabelas among 7,238 internal medicine physician records in Illinois
George C. Karabelas, 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2023 · 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).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Leszek Ballarin, M.D.Chicago, IL 606341720088107
- Mao Chen, M.D.Chicago, IL 606341295794345
- Godwin D'Souza, M.D.Chicago, IL 606341619915295
- Rebecca Duke, M.D.Chicago, IL 606341538272604
- John Haebich, M.D.Chicago, IL 606341881647048
- Haralambos Hatzidimitriadis, MDChicago, IL 606341780766170
- Jerry Jakimiec, MDChicago, IL 606341184786196
- Premesh Malapati, M.D.Chicago, IL 606341730136763
Common questions
What is George C. Karabelas, MD's NPI number?
George C. Karabelas, MD's National Provider Identifier (NPI) is 1437224128, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is George C. Karabelas, MD located?
The NPPES record lists a practice address at 3960 N Harlem, Chicago, IL, 60634. Phone: (773) 658-2300. Providers update this record themselves, so call before visiting.
How can I verify George C. Karabelas, MD's license?
NPPES lists Illinois license number 036071647, 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 George C. Karabelas, MD prescribe under Medicare Part D?
In 2024, George C. Karabelas, MD had 375 Medicare Part D claims for 59 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.