Quick answers
- Which hospitals does Gerald Simon work at?
- Medicare's official clinician data lists Gerald Simon at 5 hospitals: Advocate Good Samaritan Hospital, Edward Hospital, UChicago Medicine AdventHealth Bolingbrook, UChicago Medicine AdventHealth Hinsdale and UChicago Medicine AdventHealth La Grange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gerald Simon see patients?
- Medicare's clinician data lists 1 practice location in Downers Grove, IL. Call before your visit to confirm the address.
- What is Gerald Simon's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Gerald Simon accept Medicare assignment?
- Medicare's clinician data says Gerald Simon 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 Gerald Simon?
- (331) 775-2783, as listed in official Medicare / NPI Registry data.
- What is Gerald Simon's NPI number?
- 1861450330. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gerald Simon works
Medicare's Facility Affiliation Data lists Gerald Simon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · CCN 140288
- Edward HospitalNaperville, IL · Acute Care Hospital · CCN 140231
- UChicago Medicine AdventHealth BolingbrookBolingbrook, IL · Acute Care Hospital · CCN 140304
- UChicago Medicine AdventHealth HinsdaleHinsdale, IL · Acute Care Hospital · CCN 140122
- UChicago Medicine AdventHealth La GrangeLa Grange, IL · Acute Care Hospital · CCN 140065
Practice locations
Addresses where Gerald Simon is enrolled with Medicare (CMS data updated 2026-10-02).
- 412 63rd St, Suite 100Downers Grove, IL 60516 (331) 775‑2783
Group practices
Medicare enrollment lists Gerald Simon as a member of this group (CMS data updated 2026-10-02).
- Nani Internal Med LLC5 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Downers Grove
Clinicians with the same Medicare primary specialty in Downers Grove, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1861450330 |
| 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