John Christopher Steffes, MD
Hematology & Oncology Physician · Chicago, IL
John Christopher Steffes, MD is a hematology & oncology physician with a practice address in Chicago, Illinois, and NPI 1639758857, issued on Apr 5, 2021. Check the license (Illinois 036.169370, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John Christopher Steffes
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 036.169370 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1725 W Harrison St Ste 821B, Chicago, IL 60612
- Phone
- (312) 563-0621
- Enumerated
- Apr 5, 2021
- Record last updated
- Jun 6, 2024
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 666 in Illinois → Look up another NPI →
Also registered at 1725 W Harrison St Ste 821B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abeselom Geletu, MDHematology & Oncology Physician1033798905
- Rushad MachhiHematology & Oncology Physician1326624743
Verify John Christopher Steffes 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 036.169370Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
241 Medicare Part D claims for 41 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium28 claims
- Lisinopril16 claims
- Amlodipine Besylate14 claims
- Jardiance11 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 Christopher Steffes among 666 hematology & oncology physician records in Illinois
John Christopher Steffes, MD is one of 666 hematology & oncology physician records with a practice address in Illinois. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2024 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Illinois
There are 666 hematology & oncology physician records in Illinois.
All 666 in Illinois → Every provider in Chicago → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Piernicola Boccuni, M.D.Chicago, IL 606121851451926
- Lisa Boggio, MDChicago, IL 606121336116151
- Rosalind Catchatourian, MDChicago, IL 606121881602092
- Carmel Chou, M.D.Chicago, IL 606121316024086
- Lawrence FeldmanChicago, IL 606121871607051
- Victor Gordeuk, MDChicago, IL 606121033270046
- William Leslie, M.D.Chicago, IL 606121538129275
- Robert Molokie, M.D.Chicago, IL 606121114969136
Common questions
What is John Christopher Steffes, MD's NPI number?
John Christopher Steffes, MD's National Provider Identifier (NPI) is 1639758857, issued on Apr 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is John Christopher Steffes, MD located?
The NPPES record lists a practice address at 1725 W Harrison St Ste 821B, Chicago, IL, 60612. Phone: (312) 563-0621. Providers update this record themselves, so call before visiting.
How can I verify John Christopher Steffes, MD's license?
NPPES lists Illinois license number 036.169370, 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 Christopher Steffes, MD prescribe under Medicare Part D?
In 2024, John Christopher Steffes, MD had 241 Medicare Part D claims for 41 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.