Leaders in Cardiothoracic Surgery

The Chattanooga Heart Institute's cardiothoracic surgeons, Drs. John Craig, Brett Melnikoff, and James Zellner are among the very best in the Southeast.

Our team offers a complete range of cardiac surgery options – from traditional techniques to minimally invasive procedures including mitral valve repair, aortic valve replacement, and heart bypass surgery. The Society of Thoracic Surgeons has awarded us the highest rating for coronary artery bypass surgery which denotes the highest category of quality and places us among the elite for heart bypass surgery in the United States and Canada.


Call (423) 624-5200 for more information. 

For all patients:

We’re pleased to announce that we have transitioned to a new, improved patient portal through MedFusion.

If you’re currently enrolled in our NextMD portal, you’ll have received an email from noreply@MedFusion. Please check your email inbox for that email which includes a link to our new portal. It may be in your “junk” folder. If you’re unable to locate it, call us at 697-2338 and leave a message with your phone number and email address and we will send you a link to the new portal

Our patient portal is the ONLY way that you will receive lab, imaging and other test results so it’s important that you enroll. You can also message your physician’s nurse, scheduling, the business office and medical records departments through the portal.

If you’ve enrolled in the new MedFusion portal and need to access it, you can use this link to log in: MedFusion Portal

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to be a leader

With 27 cardiologists and three cardiothoracic surgeons, The Chattanooga Heart Institute is the area’s largest center dedicated solely to cardiac and cardiothoracic care and has been for more than 40 years. Drawing on the strength of the team, we get to answers more quickly and offer a level of care that’s not available at other hospitals in this region.

CHI Memorial and The Chattanooga Heart Institute have been recognized as Best Regional Hospital by U.S. News and World Report. Our cardiac team was recognized as “high performing” in heart attack, heart bypass surgery, heart failure, and transcatheter aortic valve replacement (TAVR).

Collaboration between specialists is what makes The Chattanooga Heart Institute unique. It’s what you deserve. And it’s the kind of heart care only available at The Chattanooga Heart Institute. For more information, call (423) 697-2000.

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The Chattanooga Heart Institute is among the Southeast’s leading providers of cardiac care. Our 27 board‐certified cardiologists—including specialists in interventional procedures, electrophysiology, imaging and vascular disease—exceed national standards for education, training and skill. Their collaboration with our four cardiovascular surgeons allows us to provide the most comprehensive cardiac care in the region. We are dedicated to providing patients with exceptional care using advanced technology.