Dr. John S. Tsakonas, M.D., a graduate of the School of Engineering of Columbia University in New York, received his medical education from the State University of New York at Syracuse. He completed his internal medicine and cardiology training at the George Washington University Hospital, Washington, D.C.
Dr. Tsakonas is certified by the National Board of Medical Examiners, the American Board of Internal Medicine and the Subspecialty Boards of Cardiovascular Disease and cardiac CT angiography.
Dr. John S. Tsakonas, M.D., a graduate of the School of Engineering of Columbia University in New York, received his medical education from the State University of New York at Syracuse. He completed his internal medicine and cardiology training at the George Washington University Hospital, Washington, D.C.
Dr. Tsakonas is certified by the National Board of Medical Examiners, the American Board of Internal Medicine and the Subspecialty Boards of Cardiovascular Disease and cardiac CT angiography.
The reviews listed below were collected independently of Cardiovascular Consultants through rater8. Each review represents an authentic and verified patient experience.
Professional, kind and of course knowledgeable on all aspects of visit
(4 days ago)
Aug-2026
On top of everything! Thanks Doc!
(1 week ago)
Jul-2026
My mother now 93, has been seeing Dr Tsakonas for years. He is always kind and understanding. The office staff is great, and Delfina is always very helpful.
(1 month ago)
Jun-2026
Great manner and interest in the details of my life. Took his time to listen and offer suggestions to my questions and concerns about my life while scheduling tests to look further into potential causes of mentioned symptoms
(1 month ago)
Jun-2026
Very thorough and knowledgeable
(2 months ago)
May-2026
Efficient and professional as always. Took his time and answered my questions.
(2 months ago)
May-2026
Excellent doctor, very thorough and direct and all of the staff are great!!
(2 months ago)
May-2026
None
(2 months ago)
May-2026
Dr. Tsakonas is an excellent doctor!!
(3 months ago)
May-2026
All the staff was nice and welcoming! My nurse was very comforting and made me feel safe while doing my stress test.
Dr. John S. Tsakonas, M.D., a graduate of the School of Engineering of Columbia University in New York, received his medical education from the State University of New York at Syracuse. He completed his internal medicine and cardiology training at the George Washington University Hospital, Washington, D.C.
He remained at George Washington as a Clinical Instructor of Medicine completing an extra year of invasive and interventional cardiology. Dr. Tsakonas is an Assistant Clinical Professor at UCLA, and is a member of the Attending Clinical Faculty in Cardiac Catheterization and Intervention at the Wadsworth VA Hospital in Los Angeles.
Dr. Tsakonas is certified by the National Board of Medical Examiners, the American Board of Internal Medicine and the Subspecialty Boards of Cardiovascular Disease and cardiac CT angiography. He is also a Fellow of the American College of Cardiology and Fellow of the Society of Cardiac CT.
Professional, kind and of course knowledgeable on all aspects of visit
On top of everything! Thanks Doc!
My mother now 93, has been seeing Dr Tsakonas for years. He is always kind and understanding. The office staff is great, and Delfina is always very helpful.
Great manner and interest in the details of my life. Took his time to listen and offer suggestions to my questions and concerns about my life while scheduling tests to look further into potential causes of mentioned symptoms
Very thorough and knowledgeable
Efficient and professional as always. Took his time and answered my questions.
Excellent doctor, very thorough and direct and all of the staff are great!!
None
Dr. Tsakonas is an excellent doctor!!
All the staff was nice and welcoming! My nurse was very comforting and made me feel safe while doing my stress test.