Gerald Cahill, M.D.
Surgery · Olympia Fields, IL
At a glance
3700 W 203Rd St Ste 302, Olympia Fields, IL 60461-1182
Published activity: Colonoscopy · Hernia repair - groin (open) · Removal of tissue. View counts and coverage
NPPES record updated Apr 14, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
3700 W 203Rd St Ste 302Olympia Fields, IL 60461-1182
Additional reported practice locations
4932 W 95Th StOak Lawn, IL 604532504
Phone: 7084225658
Fax: 7084224660 4932 W 95Th St
Oak Lawn, IL 604532504
Phone: 7084225658
Fax: 7084224660 24 Joliet St Ste 302
Dyer, IN 463111705
Phone: 2198522518
Education & affiliations
- Medical / professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb)
- Graduation year
- 1982
- CMS specialties
- General Surgery
Practice groups
Reported hospital affiliations
- Franciscan Health Dyer Dyer, IN
- Franciscan Health Michigan City Michigan City, IN
- Franciscan Health Munster Munster, IN
- Franciscan Health Olympia & Chicago Heights Olympia Fields, IL
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 1-10 |
| Hernia repair - groin (open) | 1-10 |
| Removal of tissue | 1-10 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 14 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $79.84 |
Reporting companies
| Company | Amount |
|---|---|
| BOSTON SCIENTIFIC CORPORATION | $79.84 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Surgery
- Taxonomy code
- 208600000X
- Enumeration date
- Aug 23, 2006
- Record updated
- Apr 14, 2023
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
208600000X
License reported: 01058798A IN
208C00000X
License reported: 036068765 IL
208C00000X
License reported: 01058798A IN
208600000X · Primary
License reported: 036068765 IL
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
3700 W 203Rd St Ste 302Olympia Fields, IL 60461-1182
- Phone
- (708) 679-2120
- Fax
- (708) 503-3230
Mailing address
35318 EAGLE WAYCHICAGO, IL 606781353
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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