Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Christopher Steffes, MD

Individual provider Hematology & Oncology Physician · NPI 1639758857

Dr. John Christopher Steffes, MD is a Hematology & Oncology Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2021.

Licensed in
IL
In the registry since
2021
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1725 W Harrison St Ste 821B
Chicago, IL 60612-3841
Phone: (312) 563-0621
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 036.169370 (IL)

Record details

NPI number1639758857
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 5, 2021
Last updated in NPPESJune 6, 2024
Certification dateMay 22, 2024

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