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Cardiothoracic Surgery (Heart Surgery)

(212) 746-5166

About Us

At Weill Cornell Medicine, expertise and quality patient care go hand in hand. Our heart surgeons are some of the best in the nation — and have a proven record of superior results.

Ranked #3 nationwide, Weill Cornell Medicine’s Department of Cardiothoracic Surgery is proud to partner with NewYork-Presbyterian, ranked #6 in the nation and #1 in New York by US News and World Report.

Why choose us?

  • Our surgeons specialize in heart surgery for adults and children with a wide range of disorders
  • Your care team provides a custom treatment plan, tailored to your specific needs and goals
  • We offer new, minimally invasive surgical approaches
  • Our heart surgeons collaborate with a multidisciplinary team of professionals—including cardiologists, anesthesiologists, radiologists, pathologists, neurologists, and others—to deliver seamless, high-quality care
  • NewYork-Presbyterian/Weill Cornell has been #1 in New York City for 17 years in a row (by US News & World Report)
  • Less than 1% mortality rate

To learn more about the services we offer and how to make an appointment, visit the links below. Visit our Department's website to learn more about our Heart Surgery services.

Our Services

Our Locations

56-45 Main Street, 3S – Room 387
Flushing, NY 11355
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263 7th Avenue, Suite 4H
Brooklyn, NY 11215
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What Our Patients Are Saying


"Dr. Kalfa did a full repair of our sons TOF condition 1 week after birth. We are so thankful to him and his team. He explained in detail the procedure and options weeks before his birth and days leading up to the scheduled surgery. He is extremely detailed orientated but excellent at explaining complex details in laymans terms."

Aug 15, 2018
Source: Healthgrades

"Fixed the mitral valve of my wife. We went home after a few days with no issues. Recovery has been great since then. He is a skilled surgeon and very pleasant person!!!! 5 stars all the way!!"

Apr 05, 2018
Source: RateMDs
Rambod Hashemi
Talking about Paul J. Chai, M.D.

"Every day, my wife and I are grateful to Dr. Chai for having saved our 7 year old’s life! He was diagnosed with an interrupted aortic arch and Dr Chai performed a 100% successful surgery to correct it. His relaxed, confident and upbeat manner in the pre-surgery consultation with us was so reassuring and put us at ease during a moment of shock. We really liked how he interacted with our son and his 6 year old brother. It is now 3 months post surgery and our son is a normal, healthy vigorous kid!"

Mar 03, 2018
Source: Healthgrades
*Individual results may vary