Quick answers
- Which hospitals does Mark A. Wille work at?
- Medicare's official clinician data lists Mark A. Wille at 2 hospitals: John H Stroger Jr Hospital and Saint Francis Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark A. Wille see patients?
- Medicare's clinician data lists 2 practice locations, including Chicago, IL and Peoria, IL. Call before your visit to confirm the address.
- What is Mark A. Wille's specialty?
- Medicare lists Urology as the primary specialty.
- Does Mark A. Wille accept Medicare assignment?
- Yes. Medicare's clinician data says Mark A. Wille 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 Mark A. Wille?
- (312) 572-4500, as listed in official Medicare / NPI Registry data.
- What is Mark A. Wille's NPI number?
- 1295969111. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark A. Wille works
Medicare's Facility Affiliation Data lists Mark A. Wille at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John H Stroger Jr HospitalChicago, IL · Acute Care Hospital · CCN 140124
- Saint Francis Medical CenterPeoria, IL · Acute Care Hospital · CCN 140067
Practice locations
Addresses where Mark A. Wille is enrolled with Medicare (CMS data updated 2026-10-02).
- 2020 W Harrison StChicago, IL 60612 (312) 572‑4500
- 8600 State Route 91, Suite 130Peoria, IL 61615 (309) 683‑5050
Group practices
Medicare enrollment lists Mark A. Wille as a member of these groups (CMS data updated 2026-10-02).
- OSF Multi-Specialty Group2,114 clinicians in the group
- Cook County788 clinicians in the group
Specialties
- Urologyprimary
Other urologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295969111 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians