Quick answers
- Which hospitals does Mariola Grzeszczyk work at?
- Medicare's official clinician data lists Mariola Grzeszczyk at 1 hospital: OSF Saint Katharine Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mariola Grzeszczyk see patients?
- Medicare's clinician data lists 4 practice locations, including Rolling Meadows, IL, Willowbrook, IL and Dixon, IL. Call before your visit to confirm the address.
- What is Mariola Grzeszczyk's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mariola Grzeszczyk accept Medicare assignment?
- Yes. Medicare's clinician data says Mariola Grzeszczyk 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 Mariola Grzeszczyk?
- (847) 258-4500, as listed in official Medicare / NPI Registry data.
- What is Mariola Grzeszczyk's NPI number?
- 1003425463. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mariola Grzeszczyk works
Medicare's Facility Affiliation Data lists Mariola Grzeszczyk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- OSF Saint Katharine Medical CenterDixon, IL · Acute Care Hospital · CCN 140012
Practice locations
Addresses where Mariola Grzeszczyk is enrolled with Medicare (CMS data updated 2026-10-02).
- 1669 Algonquin RdRolling Meadows, IL 60008 (847) 258‑4500
- 40 75th StWillowbrook, IL 60527 (630) 581‑5372
- 403 E 1st StDixon, IL 61021 (815) 288‑5531
- 5741 W Cermak RdCicero, IL 60804 (708) 222‑0100
Group practices
Medicare enrollment lists Mariola Grzeszczyk as a member of these groups (CMS data updated 2026-10-02).
- OSF Multi-Specialty Group2,114 clinicians in the group
- Midwest Express Care 2, Inc222 clinicians in the group
- Cermak Medical Group LLC21 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Rolling Meadows
Clinicians with the same Medicare primary specialty in Rolling Meadows, IL — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003425463 |
| 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