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

Dr. William H Kobak, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1023007887

Dr. William H Kobak, MD is an Obstetrics/Gynecology in St Charles, Illinois. Graduated from Indiana University School of Medicine in 1989, 37 years ago. Practices with The Board of Trustees of the University of Illinois, a 1,142-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
37
Trained at
Indiana University School of Medicine
Licensed in
IL
In the registry since
2005
Specialties on file
2
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

3310 W Main St Ste 200
St Charles, IL 60175-1000
Phone: (630) 897-6044
Fax: (630) 897-0180
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gynecology Physician (primary) Taxonomy 207VG0400X · Licence 036091917 (IL)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 036091917 (IL)

Record details

NPI number1023007887
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 14, 2005
Last updated in NPPESJanuary 29, 2025
Certification dateJanuary 29, 2025

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice The Board Of Trustees Of The University Of Illinois — 1142 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Other providers in St Charles