John F. Korpics, MD
Emergency Medicine Physician · Downers Grove, IL
John F. Korpics, MD is an emergency medicine physician with a practice address in Downers Grove, Illinois, and NPI 1811998057, issued on Aug 10, 2005. Check the license (Illinois 036 083204, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John F. Korpics
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036 083204 IL
Self-reported in NPPES; status is on the state search - Practice location
- Advocate Good Samaritan Hospital, Downers Grove, IL 60515
- Phone
- (630) 275-5900
- Enumerated
- Aug 10, 2005
- Record last updated
- Dec 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (630) 734-1560
- Medicaid ID
- 036083204 IL
- Medicare enrollment
- Enrolled (PECOS I20040825000173); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at Advocate Good Samaritan Hospital
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thomas Mullin, MDEmergency Medicine Physician1053313403
Verify John F. Korpics 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 036 083204Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% more Medicare Part D claims than the average emergency medicine physician in 2024
416 Medicare Part D claims for 287 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Doxycycline Hyclate37 claims
- Methylprednisolone36 claims
- Fluticasone Propionate32 claims
- Cephalexin30 claims
- Albuterol Sulfate Hfa27 claims
- Prednisone23 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 one group practice
- Dupage Emergency Physicians Convenient Care LLCLemont, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John F. Korpics among 3,291 emergency medicine physician records in Illinois
John F. Korpics, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% 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, 94% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1989 · median 2012 among the 1,867 with a school on file
- Record last updated2021 · 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 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 emergency medicine physician records list a practice address in Downers Grove
They are 23 of the 1,899 NPPES records with a practice address in Downers Grove, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Downers Grove → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Matthew Belden, M.D.Downers Grove, IL 605151467429811
- Andrea Carlson, MDDowners Grove, IL 605151750382974
- Thomas Carmody, MDDowners Grove, IL 605151275534406
- Stephen Crouch, MDDowners Grove, IL 605151508867730
- Bruce Donenberg, MDDowners Grove, IL 605151962403014
- Rhonda Konarski, MDDowners Grove, IL 605151558362772
- Sonia Mininni, MDDowners Grove, IL 605151891797239
- Thomas Mullin, MDDowners Grove, IL 605151053313403
Common questions
What is John F. Korpics, MD's NPI number?
John F. Korpics, MD's National Provider Identifier (NPI) is 1811998057, issued on Aug 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John F. Korpics, MD located?
The NPPES record lists a practice address at Advocate Good Samaritan Hospital, Downers Grove, IL, 60515. Phone: (630) 275-5900. Providers update this record themselves, so call before visiting.
How can I verify John F. Korpics, MD's license?
NPPES lists Illinois license number 036 083204, 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 F. Korpics, MD prescribe under Medicare Part D?
In 2024, John F. Korpics, MD had 416 Medicare Part D claims for 287 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.