DR. WILLIAM H KOBAK M.D.
NPI 1023007887
Obstetrics & Gynecology - Gynecology in St Charles, IL
About Dr. William H Kobak M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM H KOBAK M.D. (NPI 1023007887) is an individual gynecology provider in St Charles, Illinois, licensed in Illinois (036091917) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with John H Stroger Jr Hospital, and is a graduate of Indiana University School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses 2
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. William H Kobak M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
John H Stroger Jr Hospital
Acute Care Hospitals · Chicago, ILUniversity Of Illinois Hospital And Clinics
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60175 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ST CHARLES, IL 60175
ST CHARLES, IL 60175
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Kobak's NPI number?
The NPI number for William Kobak is 1023007887. It was assigned to this individual provider in the NPPES registry on October 14, 2005.
Where is William Kobak located?
William Kobak practices at 3310 W Main St Suite 200, St Charles, IL 60175. The listed phone number is (630) 897-6044.
What is William Kobak's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.
Is William Kobak enrolled in Medicare?
Yes. William Kobak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Is William Kobak affiliated with any hospitals?
According to CMS data, William Kobak is affiliated with John H Stroger Jr Hospital and University Of Illinois Hospital And Clinics.
When was this NPI record last updated?
The NPPES record for William Kobak was last updated on January 29, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
