Quick answers
- Which hospitals does John Kubasiak work at?
- Medicare's official clinician data lists John Kubasiak at 2 hospitals: Copley Memorial Hospital and Loyola University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Kubasiak see patients?
- Medicare's clinician data lists 1 practice location in Maywood, IL. Call before your visit to confirm the address.
- What is John Kubasiak's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty, and also General Surgery.
- Does John Kubasiak accept Medicare assignment?
- Yes. Medicare's clinician data says John Kubasiak 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 John Kubasiak?
- (708) 216-9000, as listed in official Medicare / NPI Registry data.
- What is John Kubasiak's NPI number?
- 1346533353. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Kubasiak works
Medicare's Facility Affiliation Data lists John Kubasiak at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Copley Memorial HospitalAurora, IL · Acute Care Hospital · CCN 140029
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · CCN 140276
Practice locations
Addresses where John Kubasiak is enrolled with Medicare (CMS data updated 2026-10-02).
- 2160 S 1st AveMaywood, IL 60153 (708) 216‑9000
Group practices
Medicare enrollment lists John Kubasiak as a member of this group (CMS data updated 2026-10-02).
- Loyola University Medical Center953 clinicians in the group
Specialties
- Critical Care (Intensivists)primary
- General Surgeryalso
Find other Critical Care (Intensivists) doctors in Illinois →
Other critical care doctors in Maywood
Clinicians with the same Medicare primary specialty in Maywood, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346533353 |
| 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