Quick answers
- Which hospitals does Jadwiga A. Loj work at?
- Medicare's official clinician data lists Jadwiga A. Loj at 1 hospital: Advocate Lutheran General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jadwiga A. Loj see patients?
- Medicare's clinician data lists 2 practice locations, including Park Ridge, IL and Buffalo Grove, IL. Call before your visit to confirm the address.
- What is Jadwiga A. Loj's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jadwiga A. Loj accept Medicare assignment?
- Yes. Medicare's clinician data says Jadwiga A. Loj 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 Jadwiga A. Loj?
- (847) 459-1160, as listed in official Medicare / NPI Registry data.
- What is Jadwiga A. Loj's NPI number?
- 1649307315. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jadwiga A. Loj works
Medicare's Facility Affiliation Data lists Jadwiga A. Loj at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Lutheran General HospitalPark Ridge, IL · Acute Care Hospital · CCN 140223
Practice locations
Addresses where Jadwiga A. Loj is enrolled with Medicare (CMS data updated 2026-10-02).
- 1775 Dempster StPark Ridge, IL 60068
- 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
Group practices
Medicare enrollment lists Jadwiga A. Loj as a member of this group (CMS data updated 2026-10-02).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Park Ridge
Clinicians with the same Medicare primary specialty in Park Ridge, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649307315 |
| 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