Welcome to ICA Cardiology

Cardiology Specialists in Houston and Sugar Land, TX

Whether you are a patient seeking cardiology care or a referring physician, please know that our desire is to address your medical concerns in the most expedient manner, applying our knowledge and abilities to solving or treating your individual needs.

Interventional Cardiology Associates is a highly qualified and respected provider of cardiology services, specializing in the treatment of advanced and complex cardiac problems.

Founded by Albert E Raizner, M.D., who began practicing cardiology in the Texas Medical Center in the 1970’s and formed ICA in 1987, our team of cardiologists provide comprehensive prevention, general diagnostic, interventional cardiovascular and cardiac electrophysiology services.  Our long-term stability, our experience and breadth of our services, along with our dedication and commitment to research in the advancement of the field of cardiology, have led to establishing our reputation as one of the premier cardiology groups in Texas.

With outpatient offices at the Texas Medical Center in Houston, Texas, and also in Sugar Land, Texas, we proudly serve the Greater Houston and surrounding areas,  as well as patients from across the United States and internationally.

Our core values are embedded in our initials:




We look forward to serving your cardiac needs.

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Wishing Dr. Clement DeFelice a Happy Retirement

As of the end of December 2023, Dr. Clement DeFelice retired and is no longer practicing with ICA Cardiology, PLLC. We value his many years of service and wish him well in his retirement. Your medical records will remain with the practice unless you instruct us otherwise. ICA prides itself on providing quality cardiac care while being aware that each patient is an individual with unique needs. You have a choice when it comes to your health care, and we sincerely hope you will continue to choose ICA for your cardiology needs.

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