William J. Farrell, MD, FACC

Dr. Farrell is passionate about the practice of Cardiology. He was born in Madison, Wisconsin and grew up in the Midwest. He graduated “with highest distinction” from the University of Iowa College of Engineering in 1983 with a degree in Biomedical Engineering. After graduating from the University of Iowa Medical School in 1987, he trained at Yale University in Internal Medicine, General Cardiology, and Interventional Cardiology. 

Dr. Farrell has been practicing Cardiology in the Wallingford office since 1993. He specializes in Interventional Cardiology and performs coronary angiography and stent procedures at Hartford Hospital for patients of the practice. He also practices general cardiology in the Wallingford office. 

He has been the Director of the Cardiac Service Line at MidState Medical Center since it opened in 1998. He is board-certified in Cardiovascular Disease and Interventional Cardiology. 

Dr. Farrell enjoys the practice of Cardiology immensely. He shares, “It is really a wonderful specialty. We have great diagnostic tests to help pinpoint problems and highly successful medications and procedures to help our patients feel better and live longer. There is a wealth of research data that helps us apply the right treatment to the right patient. Every year, new medications and devices become available that further improve the health of our patients.”  

Dr. Farrell also enjoys the interpersonal aspects of patient care. “It is such a privilege to be able to help take care of a community of patients over a long period of time. In many cases I get to know the patients and their families very well. The highest compliment I can get is when I see a new patient who comes to me because one of their family members or friends recommended me.”


Undergraduate: University of Iowa College of Engineering, Iowa City, IA
Medical School: University of Iowa College of Medicine, Iowa City, IA
Residency: Internal medicine residency at Yale University School of Medicine, New Haven, CT
Fellowship: Cardiovascular and interventional cardiology fellowships at Yale University School of Medicine, New Haven, CT

Board Certification

Diplomate, ABIM Internal Medicine
Diplomate, ABIM Cardiovascular Disease
Diplomate, ABIM Interventional Cardiology

Hospital Affiliations

MidState Medical Center, Meriden, CT: Director of Cardiac Service Line
Hartford Hospital, Hartford, CT
Masonic Healthcare Center, Wallingford, CT
Gaylord Hospital, Wallingford, CT

Professional Affiliations

Fellow, American College of Cardiology
Member, Connecticut State Medical Society

Academic Appointments

University of Connecticut, Clinical Assistant Professor of Medicine

 Fun Facts: 

  • Has two daughters – Christina who graduated from UConn Medical School in 2019 and is training at Yale University in Internal Medicine, and Katie who graduated from Georgetown University and now works in San Francisco as a business consultant 
  • His wife Suzanne is an APRN who owns her own Medical Aesthetics practice
  • He has two stepchildren, Tyler (13) and Natalie (12)
  • Lives in Old Saybrook, CT
  • Enjoys traveling on his vacation time 
  • Plays racket sports, including tennis in the summer and platform tennis in the winter 
  • Has run the Boston Marathon three times and has competed in numerous other road races