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About Dr. Patrick McCarthy,
Heart Valve Surgeon

Hello! My name is Dr. Patrick McCarthy and I am a cardiac surgeon having graduated from Loyola in 1980. To date, I have performed approximately 10,000 cardiac surgeries, of which 5,000 involved heart valve procedures. I regularly perform surgery at Northwestern Memorial Hospital. Read more...

207 Patient Reviews for
Dr. McCarthy

Patient Review of Dr. Patrick McCarthy

"We instantly liked Dr. Patrick McCarthy. My recovery from aortic valve replacement has been excellent!"

-- Johnathan Difazio, heart valve surgery patient

"Dr. McCarthy is an exceptional surgeon. He thoroughly explained the procedure and recovery process, which eliminated any unexpected issues. His team is also outstanding.

My surgery was six months ago and I have made a full recovery, returning to all my pre-surgery activities. His bedside manner is calming, caring, and confident, instilling trust and reassurance throughout the experience."

-- Thomas Bregenzer, Mitral Valve, Valve Repair, Mini Sternotomy, Maze Procedure, 10/28/2025

> See 206 more patient testimonials

My Specialities &
Clinical Interests

My heart surgery specialties include:

  • Mitral valve repair & replacement
  • Aortic valve, bicuspid aortic valve and aneurysm operations
  • Maze surgery for atrial fibrillation and tricuspid valve surgery

In addition, I have research and clinical interests specific to:

  • Tricuspid surgery
  • Mitral repair
  • Atrial fibrillation treatment with valve surgery

Education, Training & Certificates

Dr. Patrick McCarthy, heart surgeon, graduated from Loyola in 1980.

After medical school, Dr. McCarthy completed a General Surgery Residency at the Mayo Clinic in 1985, a Cardiac Surgery Residency at the Mayo Clinic in 1988, and a Heart Transplant Fellowship at Stanford University Hospital in 1989.

Patrick McCarthy, MD is board certified in Thoracic Surgery (Cardiothoracic Vascular Surgery) and Thoracic and Cardiac Surgery.

Schedule Appointment
with Dr. Patrick McCarthy, MD

To schedule an appointment with Dr. McCarthy, you can:

The office of Dr. McCarthy is located at 675 N St. Clair Street , Chicago, IL 60611. To get driving directions to this office, please click the map below.



> Click for driving directions to Dr. McCarthy’s office.

Watch Educational Videos with Dr. Patrick McCarthy

Learn about heart valve surgery from Dr. McCarthy in these videos:

  • Patient Alert! New Atrial Fibrillation Guidelines to Prevent Stroke for Heart Valve Patients
  • Research Alert: Is Early Surgery Best for Asymptomatic Mitral Regurgitation Patients?
  • Tissue Heart Valve Replacement Durability for Young Patients with Dr. Patrick McCarthy
  • New Approach To Bicuspid Aortic Valve Disease Treatment with Dr. Patrick McCarthy, MD
  • Mitral Valve Repair Patient Success Story: Jim Kelly
  • Ask The Expert: Tricuspid Heart Valve Surgery with Dr. Patrick McCarthy
  • Understanding Mitral Regurgitation with Dr. Patrick McCarthy
  • Doctor Q&A: What Can Heart Valve Surgery Patients Expect In The Hospital?
  • Mitral Valve Repair & AFib Success Story: Ed Can Walk Upstairs Again
  • Ask Dr. McCarthy: Stroke Risk Reduction for Atrial Fibrillation & Heart Valve Patients
  • Surgeon Q&A: Mitral Annular Calcification: What Should Patients Know?
  • Scar Tissue and Minimally Invasive Heart Valve Reoperations
  • Optimal Patient Care Through Innovation
  • Surgeon Q&A: Blood Pressure, Stroke Risk and Heart Valve Disease
  • > Watch More Videos

Page last updated: April 16, 2026