Quick answers
- Which hospitals does Walter J. Marbach work at?
- Medicare's official clinician data lists Walter J. Marbach at 2 hospitals: Riverside Medical Center and UChicago Medicine AdventHealth La Grange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Walter J. Marbach see patients?
- Medicare's clinician data lists 1 practice location in Crestwood, IL. Call before your visit to confirm the address.
- What is Walter J. Marbach's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Walter J. Marbach accept Medicare assignment?
- Yes. Medicare's clinician data says Walter J. Marbach 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 Walter J. Marbach?
- (888) 220-6432, as listed in official Medicare / NPI Registry data.
- What is Walter J. Marbach's NPI number?
- 1891703591. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Walter J. Marbach works
Medicare's Facility Affiliation Data lists Walter J. Marbach at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Riverside Medical CenterKankakee, IL · Acute Care Hospital · CCN 140186
- UChicago Medicine AdventHealth La GrangeLa Grange, IL · Acute Care Hospital · CCN 140065
Practice locations
Addresses where Walter J. Marbach is enrolled with Medicare (CMS data updated 2026-10-02).
- 13755 Cicero AveCrestwood, IL 60418 (888) 220‑6432
Group practices
Medicare enrollment lists Walter J. Marbach as a member of this group (CMS data updated 2026-10-02).
- Metro Infectious Disease Consultants LLC389 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891703591 |
| 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