Quick answers
- Which hospitals does Gerald A. Cahill work at?
- Medicare's official clinician data lists Gerald A. Cahill at 4 hospitals: Franciscan Health Dyer, Franciscan Health Michigan City, Franciscan Health Munster and Franciscan Health Olympia & Chicago Heights. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gerald A. Cahill see patients?
- Medicare's clinician data lists 2 practice locations, including Dyer, IN and Olympia Fields, IL. Call before your visit to confirm the address.
- What is Gerald A. Cahill's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Gerald A. Cahill accept Medicare assignment?
- Yes. Medicare's clinician data says Gerald A. Cahill 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 Gerald A. Cahill?
- (219) 852-2518, as listed in official Medicare / NPI Registry data.
- What is Gerald A. Cahill's NPI number?
- 1346357795. 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 A. Cahill works
Medicare's Facility Affiliation Data lists Gerald A. Cahill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Franciscan Health DyerDyer, IN · Acute Care Hospital · CCN 150090
- Franciscan Health Michigan CityMichigan City, IN · Acute Care Hospital · CCN 150015
- Franciscan Health MunsterMunster, IN · Acute Care Hospital · CCN 150165
- Franciscan Health Olympia & Chicago HeightsOlympia Fields, IL · Acute Care Hospital · CCN 140172
Practice locations
Addresses where Gerald A. Cahill is enrolled with Medicare (CMS data updated 2026-10-02).
- 24 Joliet St, Unit 302Dyer, IN 46311 (219) 852‑2518
- 3700 W 203rd St, Suite 201Olympia Fields, IL 60461 (708) 679‑2880
Group practices
Medicare enrollment lists Gerald A. Cahill as a member of these groups (CMS data updated 2026-10-02).
- Franciscan Physician Network1,170 clinicians in the group
- Specialty Physicians of Illinois LLC102 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Indiana
Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346357795 |
| 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