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Casey, David Madigan, MD, FACC

Language

English, Spanish

Providing the best care to our patients and their companions requires communicating in a way everyone understands. Interpreter services are available 24 hours a day, 7 days a week, 365 days a year. All spoken languages are available, as well as American Sign Language (AS/L).


Specialties
Accepting New Patients
  • Cardiovascular Medicine – Board Certified
  • Nuclear Cardiology – Board Certified

Areas of Expertise
Atrial Fibrillation, Cardiac Imaging, Cardiomyopathy, Congestive Heart Failure (CHF), Coronary Artery Disease, Echocardiography, Exercise Testing, Hypertension, Ischemic Heart Disease, Microvascular Disease, Non-Invasive Cardiovascular Medicine, Nuclear Cardiology, Small Vessel Angina, Syncope

Hospitals and Organizations

  • Backus Hospital
  • Hartford HealthCare Medical Group
  • Integrated Care Partners
  • Windham Hospital

Education

Medical School
Georgetown University School of Medicine

Residency
Cleveland Clinic Foundation ‐ Internal Medicine

Fellowship
University of Connecticut School of Medicine - Hartford Hospital ‐ Cardiology

Reviews

Verified Patient Reviews

5 out of 5 stars

The visit was A++++++++++++

5 out of 5 stars

I learned about the possible cause of condition for the first time. The doctor listened to my questions and made great suggestions about future care

5 out of 5 stars

Dr. Casey always takes the time to listen carefully to my concerns and symptoms without rushing the appointment. I feel heard and respected throughout the entire visit. Dr. Casey explained my condition and treatment plan in a way that was easy to understand. I left feeling informed and confident in the care I'm receiving.

5 out of 5 stars

My visits are always very informative, but this particular one put me much more at ease given the fact that we were setting up moving forward issues

4.8 out of 5 stars

I have experience with other cardiologists in the HHC system and Dr. Casey is the best.

5 out of 5 stars

Dr reviewed my history with me, showed me previous imaging results and explained them to me. He explained potential additional tests and we discussed them and agreed on the next steps.

5 out of 5 stars

I have been very impressed with the doctors and support staff I have had. All were extremely professional and knowledgeable. They were easy to talk with and answered all the questions I had.

5 out of 5 stars

Dr. Casey is thoughtful and looks at the big picture before treating

5 out of 5 stars

Dr Casey Is excellent

5 out of 5 stars

Top of the line

5 out of 5 stars

I have to drive approx 1 hrs just to see Dr Casey and I would not see anyone else as I trust this Dr it is very hard to trust a physician but Dr Casey has never lead me to a bad decision and has always listened to my concerns with care.

5 out of 5 stars

Dr. Casey is very knowledgeable and explains things clearly. His demeanor is very pleasant and I have confidence that I am receiving the best of care.

5 out of 5 stars

Dr Casey was amazing, as always. He really listens!

5 out of 5 stars

Excellent doctor. Knowledgeable and considerate.

5 out of 5 stars

I like Dr. Casey's approach and manner.

5 out of 5 stars

Dr Casey is the best

5 out of 5 stars

Dr. Casey always takes time to listen, explain, and answer questions with a pleasant demeanor.

5 out of 5 stars

Dr. Casey was thorough and spent the time with me going over my health record explaining everything in detail.


Other Reviews from Around the Web

5 out of 5 stars

Helping me understand the problem and providing future treatments

5 out of 5 stars

Dr Casey went through my test with me and told me everything, explaining it in in layman's terms. Great Dr. Highly recommend him.

5 out of 5 stars

Dr Casy is a nice person as well as a Dr. Informed me of information that helped me understand my condition. He asked me many questions to make sure I was ok.

5 out of 5 stars

Very thorough, helped me understand things, am very confident in the direction and plan Dr. Casey has put me on. Answered all questions, I am very glad that I am being treated by Dr. Casey

5 out of 5 stars

Great dr, great personality Over all helped me to learn and relax

5 out of 5 stars

I’ve been with Dr. Casey for 17 years and he has made a monstrous improvement in my quality of life. I was concerned when he left his previous practice to come to Hartford healthcare recently because I wasn’t sure where he was practicing and wanted to find him. Changing doctors at this stage of my life is not some thing I have any interest in it and I am thankful I’ve been able to connect with him.

5 out of 5 stars

Dr Casey took the time to explain my situation and he was very thorough with his evaluation. His experience in the field was very evident and I feel confident with his assessment.

5 out of 5 stars

Great visit. Dr. Casey takes the time to explain what is wrong and the directions pos to resolve the problem. I was much more comfortable after consulting Dr. Casey.

5 out of 5 stars

I have been with Dr. Casey for about four or five years now I recently saw him in January 2026. The thing I appreciate about Dr. Casey as he talks with me not to me. On my most recent visit, we went over a lot of things concerning cholesterol, concerning which foods Are good choices, some of the mythes about certain foods, and also saturated fats and so on . Dr. Casey Is one of my favorite doctors, because he also listens to what I have to say I don’t feel like I’m just another number but an actual human being. Over the years he has been very thorough Performing tests to get a bigger picture of my heart Health, he is very thorough and one of my favorite doctors out of the team that I see. So if you’re looking for a cardiologist, I highly recommend Dr. Casey with Hartford healthcare.

5 out of 5 stars

Dr. Casey is nearly ideal. He is personable, thorough, communicates clearly and he is on time. If it gets better than that, I haven't seen it yet.

5 out of 5 stars

Everyone was very professional from office staff to medical staff. My new Cardiologist made me feel at ease and answered the questions I was concerned about. He is one of the few doctors that takes the time to answer your questions so that you can understand fully what is going on with your body. Their full staff from front desk to nurses, P.A, and my Doctor always get back to you if you you have questions. I really am comfortable with my doctor and staff!!

5 out of 5 stars

Was looking for a cardiologist and thankfully Dr Casey was able to see me for AFIB issue. Very knowledgeable and proactive. I am very thankful to be in his care.

5 out of 5 stars

I brought my dad to Dr. Casey today and could not have been any happier. The front desk staff greeted us with a smile and she was pleasant throughout the check-in process. We never felt rushed. The Medical Assistant that started off in the room was also wonderful (Tyler). He was thorough and listened to the concerns we both had that brought us to the office. During the visit, I realized that my diamond was out of my ring... the office staff immediately put out a mass text message to alert people to be on the lookout. HAYLEY came right into the room and started looking and found it!!! I could not have been more thankful to her for caring and helping me look. What an awesome staff. Dr. Casey took my dad's concerns seriously and ordered tests that he and the office staff made happen for same day tests! They did all the scheduling and made it easy for my dad to understand. From start to finish, I could not have been any more impressed with every aspect of the visit. Thank you for a great experience.

Bio

Dr. Casey has been in practice since 2006 when he joined the Hartford Hospital Medical Staff.

In 2009 he was the recipient of UCONN's Cardiology Fellowship Teacher of the Year Award.

Insurance

Aetna, Anthem, CarePartners of Connecticut, Cigna Healthcare, Connecticare, Coventry, Health New England, Healthnet, Medicare, Oxford Health Plans, Prime Health Services, United Healthcare, WellCare of Connecticut, Inc.

This information is subject to change at any time. Please check with your insurance provider before scheduling your appointment or receiving services to confirm they are a participating member of the Hartford HealthCare network.

Covered by Financial Assistance policy.

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