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Surgical Oncology

Michael A. Warso, MD

Works at hospitals in Chicago, IL · Illinois

Summary

Michael A. Warso, MD (Surgical Oncology) is listed by Medicare at 1 hospital in Chicago, IL. NPI 1679676878. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Michael A. Warso, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Surgical OncologyPrimary specialty
YesAccepts Medicare assignment
46Years since medical school (graduated 1980)
University Of Illinois College Of Med (chi/peor/rock/chm-Urb)Medical school
MaleGender (as listed)
The Board of Trustees of the University of IllinoisGroup practice

Quick answers

Which hospitals does Michael A. Warso work at?
Medicare's official clinician data lists Michael A. Warso at 1 hospital: University of Illinois Hospital and Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael A. Warso see patients?
Medicare's clinician data lists 4 practice locations, including Chicago, IL. Call before your visit to confirm the address.
What is Michael A. Warso's specialty?
Medicare lists Surgical Oncology as the primary specialty.
Does Michael A. Warso accept Medicare assignment?
Yes. Medicare's clinician data says Michael A. Warso accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Michael A. Warso?
(312) 996-6590, as listed in official Medicare / NPI Registry data.
What is Michael A. Warso's NPI number?
1679676878. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael A. Warso works

Medicare's Facility Affiliation Data lists Michael A. Warso at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Michael A. Warso is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael A. Warso as a member of this group (CMS data updated 2026-10-02).

  • The Board of Trustees of the University of Illinois1,150 clinicians in the group

Specialties

Find other Surgical Oncology doctors in Illinois →

Other surgical oncologists in Chicago

Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.

All surgical oncologists in Chicago →

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year1980
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679676878
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians