Quick answers
- Which hospitals does Brent S. Rieger work at?
- Medicare's official clinician data lists Brent S. Rieger at 5 hospitals: Loyola Gottlieb Memorial Hospital, Loyola University Medical Center, Northwestern Medicine Central Dupage Hospital, Northwestern Memorial Hospital and Palos Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brent S. Rieger see patients?
- Medicare's clinician data lists 1 practice location in Oak Brook, IL. Call before your visit to confirm the address.
- What is Brent S. Rieger's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
- Does Brent S. Rieger accept Medicare assignment?
- Yes. Medicare's clinician data says Brent S. Rieger 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.
- Does Brent S. Rieger offer telehealth?
- Medicare's clinician data says Brent S. Rieger offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Brent S. Rieger?
- (630) 232-0280, as listed in official Medicare / NPI Registry data.
- What is Brent S. Rieger's NPI number?
- 1437321577. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brent S. Rieger works
Medicare's Facility Affiliation Data lists Brent S. Rieger at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Loyola Gottlieb Memorial HospitalMelrose Park, IL · Acute Care Hospital · CCN 140008
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · CCN 140276
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
- Palos Community HospitalPalos Heights, IL · Acute Care Hospital · CCN 140062
Practice locations
Addresses where Brent S. Rieger is enrolled with Medicare (CMS data updated 2026-10-02).
- 1001 Commerce Dr, Suite 500Oak Brook, IL 60523 (630) 232‑0280
Group practices
Medicare enrollment lists Brent S. Rieger as a member of this group (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
- Internal Medicineprimary
- Pediatric Medicinealso
Other internal medicine doctors in Oak Brook
Clinicians with the same Medicare primary specialty in Oak Brook, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1437321577 |
| 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