Quick answers
- Which hospitals does Olusoji A. Peter work at?
- Medicare's official clinician data lists Olusoji A. Peter at 2 hospitals: Northwestern Medicine Central Dupage Hospital and St Bernard Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Olusoji A. Peter see patients?
- Medicare's clinician data lists 3 practice locations, including Des Plaines, IL, Chicago, IL and Darien, IL. Call before your visit to confirm the address.
- What is Olusoji A. Peter's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Olusoji A. Peter accept Medicare assignment?
- Medicare's clinician data says Olusoji A. Peter may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Olusoji A. Peter?
- (847) 257-7984, as listed in official Medicare / NPI Registry data.
- What is Olusoji A. Peter's NPI number?
- 1225018203. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Olusoji A. Peter works
Medicare's Facility Affiliation Data lists Olusoji A. Peter at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- St Bernard HospitalChicago, IL · Acute Care Hospital · CCN 140103
Practice locations
Addresses where Olusoji A. Peter is enrolled with Medicare (CMS data updated 2026-10-02).
- 2250 E Devon Ave, Suite 332Des Plaines, IL 60018 (847) 257‑7984
- 5232 N Sheridan RdChicago, IL 60640 (773) 654‑3326
- 8205 Cass Ave, Suite 110bDarien, IL 60561 (773) 840‑4747
Group practices
Medicare enrollment lists Olusoji A. Peter as a member of these groups (CMS data updated 2026-10-02).
- Forever Care Home Visiting Physicians Inc14 clinicians in the group
- New Southtown Medical Group S C10 clinicians in the group
- Vital Signs Wellness LLC4 clinicians in the group
- Lakeshore Home Visiting Physicians2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Des Plaines
Clinicians with the same Medicare primary specialty in Des Plaines, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1225018203 |
| 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