Health Alliance HMO-POS
Dr. Thomas Cahill Jr, MD
Cardiology*
Age 74
Dr. Thomas Cahill Jr, MD is a Cardiologist in O Fallon, IL.
Dr. Thomas Cahill Jr, MD
O Fallon, IL
Accepting new patients
21 years of experience
Dr. Thomas Cahill Jr, MD is a Cardiologist in O Fallon, IL.
About Dr. Thomas Cahill Jr, MD
Dr. Cahill Jr graduated from
Explains Conditions Well
Patients said this doctor explains conditions well.
Trustworthy
Patients said this doctor is trustworthy.
Low Wait Times
Patients are usually seen in 10 minutes or less.
Friendly Staff
Patients said the staff was friendly.
Easy Scheduling
Patients said scheduling was easy.
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Accepted Insurance Plans
* Please verify this information when scheduling an appointment.
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First Health (Coventry Health Care) PPO
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Curative EPOCurative PPO PlusCurative PPO
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Choice POSChoice Care PPOChoice Care Network PPO
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Blue Cross Blue Shield of Illinois PPOBlue Print PPOBlue Choice Select PPO
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Open Access Plus
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Health Alliance PPO
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Choice Plus POS IIAetnaSavings Plus of IL OA SelectManaged Choice (Open Access) POSPremier Care Network Plus - Innovation HealthElect Choice (Open Access) EPOOpen Choice PPO
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Choice Plus POSNexus Open AccessOptions PPOMedica ChoiceNavigate HMONavigate POS
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Blue Card PPOBlue Card High Performance Network HPN
Where Dr. Thomas Cahill Jr, MD Sees Patients
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Prairie Cardiovascular Consultants LTD3 Saint Elizabeth Blvd Ste 2800, O Fallon, IL 62269
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HSHS St. Joseph's Hospital Breese9515 Holy Cross Ln, Breese, IL 62230
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Deaconess Illinois Clinic Inc205 S Burns Ave, Sparta, IL 62286
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St Elizabeths Hospital of the Hospital Sisters of the Third Order1 Saint Elizabeth Blvd, O Fallon, IL 62269
What Patients Say
Likelihood to recommend Dr. Cahill Jr
4.5
Based on 2 Reviews
5 Stars (1)
4 Stars (1)
3 Stars (0)
2 Stars (0)
1 Star (0)
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How likely are you to recommend Dr. Cahill Jr?
Patient Reviews
Aug 12, 2025
Dr. Cahill is very personable and he spends time with his patients. He is an excellent Cardiologist.
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Meet Dr. Thomas Cahill Jr, MD
Specialties*
Internal Medicine
Cardiology
- *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
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FAQs About Dr. Cahill Jr's Practice
Find contact information here to make an appointment.
A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.
New patients are generally accepted by Dr. Thomas Cahill Jr, MD. To arrange an appointment, call the number on Dr. Cahill Jr's profile.
Dr. Cahill Jr in specializes in Cardiology. See more on Sharecare.
Dr. Cahill Jr frequently treats the following conditions: Chest Pain, Cardiomyopathy, Hypertrophic, Hypertensive Heart Disease and Rheumatic Aortic Valve Disorders. See more on Sharecare.
Dr. Cahill Jr's office is located at 3 Saint Elizabeth Blvd Ste 2800 O Fallon, IL 62269. You can find other locations and directions on Sharecare.
Dr. Cahill Jr provides telehealth services. Please contact the office to determine whether you are eligible.
Dr. Thomas Cahill Jr, MD is affiliated with HSHS St. Joseph's Hospital Breese, Sparta Community Hospital, HSHS St. Joseph's Hospital Highland and HSHS St. Elizabeth's Hospital.
Yes, Dr. Thomas Cahill Jr, MD holds board certification in Cardiovascular Disease and Internal Medicine.
Dr. Thomas Cahill Jr, MD has a star rating of 4.5/5. See more patient feedback on Sharecare.
Training & Medical Education
Medical Education
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SAINT LOUIS UNIVERSITY / HEALTH SCIENCES CENTER
2005
Board Certifications
- Cardiovascular Disease and Internal Medicine
Hospitals Where Dr. Thomas Cahill Jr, MD Practices
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HSHS St. Joseph's Hospital Breese
9515 Holy Cross Ln, Breese, IL
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Sparta Community Hospital
818 E Broadway St, Sparta, IL
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HSHS St. Joseph's Hospital Highland
12866 Troxler Ave, Highland, IL
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HSHS St. Elizabeth's Hospital
1 Saint Elizabeth Blvd, O Fallon, IL
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