Joseph Fellix G Gnanaraj

Joseph Fellix G Gnanaraj, MD

Cardiology, Cardiovascular Disease, Internal Medicine

Provider Groups

  • Trinity Health Of New England Care Alliance

  • Trinity Health Of New England Medical Group

Primary Contact

203-709-7300
Accepting New Patients
Provider Groups
  • Trinity Health Of New England Care Alliance

  • Trinity Health Of New England Medical Group

Primary Contact
203-709-7300

Services & Specialties

Areas of Specialization

  • Cardiology
  • Cardiovascular Disease
  • Internal Medicine

Clinical Interests

Conditions Treated

  • Hoffman Heart
  • Cardiovascular
  • Echocardiography
  • Nuclear cardiology
  • Cardiovascular Disease
  • Cardiology

About

Joseph Gnanaraj, MD, FACC, is a cardiologist with Saint Mary’s Hospital and Franklin Medical Group.

Dr. Gnanaraj received his medical degree from Madurai Medical College, an affiliate of The Tamil Nadu Dr. M.G.R. Medical University in India, where he also completed his post graduate training in internal medicine. Dr. Gnanaraj served as a consultant physician at Jawahar Hospital in Madurai and as an assistant professor of medicine at Vinayaka Missions Medical College in Salem, India. He subsequently served as Senior Registrar of the Department of Medicine for the Ministry of Health in St. Vincent, and as a clinical tutor at Kingstown Medical College at St. George’s University.

In 2007, Dr. Gnanaraj completed his internal medicine residency at Griffin Hospital, where he later served as Chief Resident, Faculty Hospitalist and Associate Program Director of the Internal Medicine Residency Program. He was recognized as “Physician of the Year” in 2012 for providing exceptional and compassionate patient care and received multiple awards for teaching medicine to residents. He was a clinical instructor at Yale University School of Medicine and completed a fellowship in cardiology at Bridgeport Hospital, an affiliate of Yale-New Haven Health. He is a Fellow of the American College of Cardiology and a member of the ACC Connecticut Chapter Council.

Dr. Gnanaraj is board certified in cardiovascular disease, internal medicine, echocardiography, peripheral vascular ultrasound and nuclear cardiology. Clinical areas of interest include management of heart failure, valvular heart disease and heart rhythm disorders, including atrial fibrillation. Dr. Gnanaraj believes in providing holistic care and treating patients as a whole, not just their hearts. He looks forward to serving new patients from Greater Waterbury and surrounding towns at Franklin Medical Group – Cardiology.

Additional Resources

Education & Certifications

Education

Education:
Madurai Medical College (2002)

Residency:
Griffin Hospital (Internal Medicine) (2008)

Fellowship:
Yale-New Haven Bridgeport Hospital (Cardiology) (2016)

Fellowship:
Bridgeport Hospital (Cardiology) (2016)

Board Certifications

Cardiology, American Board of Internal Medicine Subspecialty Cardiovascular Disease (2016)

Provider Groups

Trinity Health Of New England Care Alliance

Trinity Health Of New England Medical Group

Provider Ratings

The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy. Learn More >

4.9 out of 5

(367 ratings)

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

52 Reviews

10/27/2026

Bien

10/27/2026

A fantastic doctor and person.

10/27/2026

So grateful he is my cardiologist!

10/27/2026

Doctor Gnanaraj is very thorough, polite, and always asks if I have any questions.

10/23/2026

Excellent in explaining everything and very caring very good provider no complaints.

10/22/2026

He is thorough, knowledgeable, and communicates well.

10/20/2026

Dr Gnanaraj is exactly what I would expect in physician. Courteous, thoughtful, prepared to discuss my health concerns and a positive attitude.

10/15/2026

Thankful to have him as my Doctor!

10/13/2026

He is a great doctor always listens and answers all questions, very kind and caring

10/12/2026

I would recommend him to friends and family. He is a wonderful human being.

10/08/2026

!00% a star to whom his patient is not a stat

09/28/2026

Great doc

09/28/2026

Dr. Gnanaraj always listens and answers my questions.

09/25/2026

He's great

09/23/2026

Dr Gnanaraj has a nice manner and doesn’t seem rushed during the appointments. He listens well and thoughtfully. I like the new breed of younger doctors who are more collaborative and relaxed instead of authoritarian and distant. I have a young orthopedic surgeon in Danbury who has a similar manner. So much better than typing into a keyboard and barely looking up!

09/22/2026

Dr. Gnanaraj treated me with respect,explained so I understood and spent adequate time and answered all my questions.

09/21/2026

This doctor is a compassionate Doctor Who listens to his patients and explains things in plain language.

09/16/2026

The best - knowledgeable and good people skills

09/15/2026

He’s the best doctor

09/14/2026

Dr. Gnanaraj is the best. He takes his time explaining things to you. He generally cares about his patients

09/08/2026

I am very comfortable with Dr Gnanaraj . No stress at all .

09/08/2026

Excellent doctor

09/04/2026

The best

09/03/2026

Dr. Gnanaraj is an excellent provider. He does a thorough exam, listens to his patients, and makes treatment recommendations in a caring manner.

09/01/2026

Quick visit. Very knowledgeable visit

08/31/2026

He was very nice, explained everything thoroughly and answered any questions I might have had

08/28/2026

Dr Gnanaraj is very professional and friendly. He is very knowledgeable and explains so that you can understand.

08/25/2026

He always listens to what I'm trying to say and explains to me whatever I need and want to know in a logical format... He helps me with any fears I my have... All in all a very good doctor...

08/24/2026

Always a pleasure to see him.

08/24/2026

Listens and is concerned for my needs

08/18/2026

Excellent doctor

08/17/2026

Compassionate and professional in the field of cardiology, which was all new to me until two years ago. I have been through a lot of changes under his care.

08/17/2026

He continues to be my favorite Doc and I wouldn’t trade him for the world

08/17/2026

He is very caring and always listenBest Cardiologist ever!

08/17/2026

Treats you very nice and answers any questions

08/14/2026

Perfectly satisfied.

07/16/2026

Excellent service

06/30/2026

Great

05/26/2026

Great doctor

04/23/2026

Great Doctor

04/03/2026

Excellent

02/20/2026

Excellent

02/20/2026

Answered all my questions and concern about my health and well being. Thank you Dr.Gnanaraj.

02/03/2026

Excellent

01/22/2026

I have confidence in him and his skills.

01/22/2026

Find Dr Gnanaraj to be a respectable doctor. He is courteous, kind, explain your condition, and takes time with patient. You dont feel rushed.

12/16/2025

Excellent cardiologist!

12/16/2025

I would recommend him to friends and family.

12/15/2025

He has a nice demeanor.

11/21/2025

Enjoyed my initial visit to this practice and left confident in Dr. Gnararaj's abilities.

11/18/2025

Excellent

11/17/2025

Great job
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