John Cahill, MD - Interventional Cardiologist in Illinois - Profile, Reviews

John Cahill, MD - Interventional Cardiologist in Illinois - Profile, Reviews

Dr. John Cahill, MD is a board‑certified interventional cardiologist practicing in Elmhurst and Naperville, Illinois.

Explore his specialties, practice details, and patient care focus on our U.S. healthcare professional directory.

About Dr. John Cahill, MD

Dr. John Cahill, MD is an experienced interventional cardiologist based in Elmhurst, IL with decades of clinical experience.

He specializes in the diagnosis and treatment of coronary artery disease, structural heart conditions, and peripheral vascular disease, using minimally invasive techniques to improve cardiovascular health.

Dr. Cahill earned his medical degree from Loyola University Chicago Stritch School of Medicine, completed residency and fellowship training in cardiovascular disease, and serves patients at multiple practice locations throughout Illinois.

He is committed to patient‑centered care and ongoing management of chronic heart conditions.

John Cahill, MD

Credentials & Education

  • Medical Degree: Loyola University Chicago Stritch School of Medicine — Maywood, IL
  • Residency & Fellowship: Internal Medicine and Cardiovascular Disease at Loyola University Medical Center, IL
  • Board Certifications: Internal Medicine, Cardiovascular Disease — Fellow of the American College of Cardiology

Specialties

  • Interventional Cardiology
  • Coronary Artery Disease Treatment
  • Structural Heart Procedures
  • Peripheral Vascular Care
  • Cardiovascular Risk Management

Practice Location & Contact

Primary Clinic: Midwest Cardiovascular Institute — Elmhurst, IL

Call: +1 331‑231‑6200

Address: 133 E Brush Hill Rd, Suite 202, Elmhurst, IL 60126

Services Offered

Dr. Cahill provides a range of cardiovascular services including advanced interventional procedures such as angioplasty and stent placement, comprehensive coronary artery disease care, structural heart assessments, peripheral vascular interventions, and personalized long‑term treatment plans for heart health improvement.

License Information

NPI (National Provider Identifier): 1124071337

FAQ

1. What conditions does Dr. Cahill treat?

Dr. Cahill treats coronary artery disease, atherosclerosis, heart valve disorders, and other cardiovascular conditions affecting blood flow and heart function.

2. Does Dr. Cahill accept new patients?

Yes, he is currently accepting new patients at his Elmhurst practice; patients should call ahead to schedule an appointment and confirm details.

3. What procedures does Dr. Cahill specialize in?

He specializes in interventional cardiology procedures such as angioplasty, stent placement, and other catheter‑based treatments that improve blood flow.

4. Where did Dr. Cahill train?

Dr. Cahill completed his residency and fellowship training in internal medicine and cardiovascular disease at Loyola University Medical Center after attending medical school at Loyola University Chicago Stritch School of Medicine.

5. What languages does Dr. Cahill speak?

Dr. Cahill speaks English and Spanish, helping him communicate with a diverse patient population.

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FAQ

What is the best hospital in Chicago for heart problems?

Chicago and its suburbs are home to many of the nation’s highest-rated medical centers, with 22 Chicago-area hospitals earning positions on Forbes’ inaugural “Top Hospitals” list for 2026, which evaluates institutions on quality, safety, outcomes, patient experience, and value.

Several local hospitals—including Northwestern Memorial Hospital, Rush University Medical Center, and Ascension St. Joseph in Chicago—received prestigious five-star overall ratings, highlighting their excellence in clinical outcomes and best practices, while others earned four-star scores for strong performance across key health care measures, reflecting the region’s robust heart and general medical care infrastructure.

Which Chicago cardiologists were named among the city’s top doctors?

According to UI Health’s announcement recognizing 80 Castle Connolly–designated physicians, several UI Health cardiology and cardiovascular specialists were included among the top cardiology doctors in Chicago, reflecting strong peer endorsements, excellence in patient care, and leadership in advanced heart-disease treatment.

Their inclusion highlights UI Health’s expanding reputation in cardiovascular medicine and its role as a major center for high-quality heart care in the Chicago region.

Which Illinois hospitals ranked among the best in 2025?

In the latest U.S. News & World Report 2025-2026 Best Hospitals Honor Roll, two Illinois hospitalsNorthwestern Memorial Hospital and Rush University Medical Center — were ranked among the top 20 hospitals in the nation, with Northwestern Memorial earning first place in Illinois and strong performance across multiple adult specialties, while the Chicago area also saw 21 hospitals listed among the best regional care providers, highlighting the region’s high standards in medical care and patient outcomes.