Joseph J. Brennan, Jr., MD


Cardiovascular Disease, Internal Medicine, Interventional Cardiology

Conditions & Treatments

Alcohol Septal Ablation, Angina, Cardiac Catheterization, Cardiology, Coronary Angioplasty, Coronary Artery Disease, Coronary Intervention, Coronary Stenting, Heart Disease, Interventional Cardiology

(203) 483-8300
Accepting New Patients
Telehealth Visits


Joseph Brennan, MD, has been providing cardiac care to Yale Medicine patients for more than 25 years. He specializes in coronary artery disease, hyperlipidemia and cardiac valvular abnormalities, among other problems.

In addition to his clinical practice, Dr. Brennan is medical director for the Coronary Intensive Care Unit and director of inpatient cardiology services at Yale New Haven Hospital. His clinical research interests include developing newer coronary devices and “working on minimally invasive techniques to treat issues that previously would have required surgery,” he says. Dr. Brennan is an associate professor of medicine (cardiology) at Yale School of Medicine.





Years In Practice


Affiliated With

Yale Medicine


Yale Cardiology

84 North Main Street
Branford, CT 06405

Get Directions

(203) 483-8314

Yale Cardiology

20 York Street
New Haven, CT 06510

Get Directions

Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM

Yale Cardiology

800 Howard Avenue
Yale Physicians Building
New Haven, CT 06519

Get Directions

(203) 737-2437

Yale New Haven Health Heart and Vascular Center

500 West Putnam Avenue
Suite 350
Greenwich, CT 06830

Get Directions

(203) 622-1872

Education & Training


College of William and Mary;Medical College of Virginia


Yale New Haven Hospital, New Haven, CT


Yale New Haven Hospital

Accepted Insurance

Insurance coverage regularly changes, please contact the doctor’s office directly to verify that your specific insurance plan is accepted.

  • aetna
  • anthem bc/bs
  • berkeley care network
  • cigna healthcare
  • community care network
  • connecticare
  • corvel
  • first health network
  • focus healthcare
  • great west
  • husky
  • medicaid
  • medicare
  • multiplan
  • oxford health plans
  • railroad medicare
  • tricare/champus
  • united healthcare
  • us family health plan
  • wellcare