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GERALD CAHILL M.D.
NPI 1346357795
Surgery in Olympia Fields, IL

Active since August 23, 2006PECOS EnrolledAccepts Medicare Assignment
3700 W 203RD ST STE 302, OLYMPIA FIELDS, IL 60461(708) 679-2120(708) 503-3230 Get Directions Write a Review

NPPES record last updated: April 14, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 14, 2023, Oct 21, 2022, Mar 19, 2021 and 3 more (6 updates tracked since 2016).

About Gerald Cahill M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GERALD CAHILL M.D. (NPI 1346357795) is an individual surgery provider in Olympia Fields, Illinois, licensed in Illinois (036068765) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Franciscan Health Olympia & Chicago Heights, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1346357795
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameGERALD CAHILLCredential: M.D.
Location Address3700 W 203RD ST STE 302Olympia Fields, IL 60461-1182
Mailing Address35318 Eagle WayChicago, IL 60678-1353 · (317) 528-4800 · Fax (317) 865-1479
Phone(708) 679-2120
Fax(708) 503-3230
Sole ProprietorNo
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 1982
Enumeration DateAugust 23, 2006
Last NPPES UpdateApril 14, 20236 updates tracked since enumeration
NPPES CertifiedApril 14, 2023
✔ NPI 1346357795 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in IL · 036068765✔ Licensed in IN · 01058798A
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedColon & Rectal SurgeryTaxonomy 208C00000X · License 036068765 (IL), 01058798A (IN)
3700 W 203RD ST STE 302, Olympia Fields, IL 60461
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Secondary Practice Locations 2

Location 14932 W 95TH STOAK LAWN, IL 60453-2504 · Phone (708) 422-5658 · Fax (708) 422-4660
Location 224 Joliet St Ste 302Dyer, IN 46311-1705 · Phone (219) 852-2518

Other Identifiers 3

Medicaid036068765IL
Medicaid200511540IN
OtherF400340959IL · Individual Medicare Ptan Specialty Physicians Of Illinois

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gerald Cahill M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911951272
PECOS Enrollment IDI20050309000578, I20050401000134
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
38 services24 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
22 services12 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
16 services16 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Franciscan Health Olympia & Chicago Heights

Acute Care Hospitals · Olympia Fields, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140172
Location20201 S Crawford AvenueOlympia Fields, IL 60461 · Cook County
Emergency services Birthing friendly

Franciscan Health Michigan City

Acute Care Hospitals · Michigan City, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number150015
Location3500 Franciscan WayMichigan City, IN 46360 · La Porte County
Emergency services Birthing friendly

Franciscan Health Dyer

Acute Care Hospitals · Dyer, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number150090
Location24 Joliet StDyer, IN 46311 · Lake County
Emergency services Birthing friendly

Franciscan Health Munster

Acute Care Hospitals · Munster, IN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150165
Location701 Superior AveMunster, IN 46321 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60461 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MEGAN GAC FNP
Nurse Practitioner (Family)
3700 W 203RD ST STE 302
OLYMPIA FIELDS, IL 60461
Cook County (708) 679-2518
JOHN J KARL FNP-C
Nurse Practitioner
3700 W 203RD ST STE 302
OLYMPIA FIELDS, IL 60461
Cook County (708) 679-2518

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gerald Cahill's NPI number?

The NPI number for Gerald Cahill is 1346357795. It was assigned to this individual provider in the NPPES registry on August 23, 2006.

Where is Gerald Cahill located?

Gerald Cahill practices at 3700 W 203rd St Ste 302, Olympia Fields, IL 60461. The listed phone number is (708) 679-2120.

What is Gerald Cahill's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Gerald Cahill enrolled in Medicare?

Yes. Gerald Cahill is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gerald Cahill accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan and Ambetter from Meridian list Gerald Cahill as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gerald Cahill affiliated with any hospitals?

According to CMS data, Gerald Cahill is affiliated with Franciscan Health Olympia & Chicago Heights, Franciscan Health Michigan City, Franciscan Health Dyer and Franciscan Health Munster.

When was this NPI record last updated?

The NPPES record for Gerald Cahill was last updated on April 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.