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

Dr. John J Hardek, MD

Individual provider Internal Medicine Physician · NPI 1710945126

Dr. John J Hardek, MD is a Hospitalist in Winfield, Illinois. Graduated from New York Medical College in 1989, 37 years ago. Practices with Central Dupage Physician Group, a 1,094-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
37
Trained at
New York Medical College
Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

25 N Winfield Rd Ste 101
Winfield, IL 60190-1295
Phone: (630) 933-4700
Fax: (630) 933-4427
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 036083592 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036083592 (IL)

Record details

NPI number1710945126
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2006
Last updated in NPPESJanuary 18, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1989 (37 years in practice)
Group practice Central Dupage Physician Group — 1094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Winfield