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Chattanooga Heart's cardiothoracic surgeons Drs. Matthew Richey and James Zellner are among the very best in the Southeast. If your diagnosis requires you to have cardiovascular surgery, you can rest assured that you're in the hands of the area's most experienced team! CHI Memorial was named BEST REGIONAL HOSPITAL for 2019 by U. S. News and World Report.

CHI Memorial's cardiac team was recognized for high standard of treatment for heart failure, heart bypass surgery and abdominal aortic aneurysm repair.
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With three cardiothoracic surgeons, three vascular surgeons and 27 board-certified cardiologists on staff-including specialists in interventional procedures, electrophysiology, imaging and vascular disease-The Chattanooga Heart Institute at Memorial offers a comprehensive multidisciplinary approach to cardiac care.
Since the founding of The Chattanooga Heart Institute in 1977, our patients have been our top priority. We are committed to providing quality, comprehensive, cardiovascular care and to enhancing the quality of life for each person we serve. Our 29 board-certified cardiologists, 3 board-certified cardiothoracic surgeons and 3 vascular surgeons ensure that as a patient you have an entire team of highly-skilled specialists to provide you with care in their area of expertise.The Chattanooga Heart physicians have carefully chosen our nurse practitioners for their ability to closely work alongside them in managing your care.
Dr. Chad Armstrong comes to The Chattanooga Heart Institute from Vanderbilt University Medical Center where he completed a fellowship in Cardiovascular Medicine and where he also completed an Internal Medicine residency. He earned his medical degree from the University of Mississippi Medical Center in Jackson, MS.
Dr. Allen Atchley is board certified in Internal Medicine and Cardiovascular Diseases and also holds specialized board certifications in Echocardiography, Nuclear Cardiology and is a Registered Physician in Vascular Interpretation, Vascular Ultrasound. He completed his fellowship in cardiology at Duke University Medical Center where he further pursued advanced training with a specialized fellowship in non-invasive cardiovascular imaging.
Reviews (10)
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Grace Hill
May 26, 2022
Dr Manduwat is the absolute best Cardiologists and doctor out there in my opinion! He is there when you need him, amazing bedside manner, thorough and wise! I feel so blessed and thankful that I found such an amazing doctor after years of fails. Finally I have comfort in my healthcare because of him. Especially being a Cardiologists everything is so scary. He definitely knows how to put you at ease and give you comfort.
Rhonda Hendricks
May 09, 2022
I called them several times about my insurance one says yes they take and another said no called them again because they are on my insurance list yes we take and then was called after I was told yes made appointment they rescheduled first appointment made another appointment date then was called 3 days before appointment we cancelled your appointment we dont take your insurance.ive been looking for a cardiologists for months due to stroke and found a whole in my heart. Im confused on if this people even know what there doing. Im guessing not.
Eddie Baker
Nov 09, 2021
My dad had a horrible experience. The doctor who put his pacemaker in has yet to see him. Now he receives a letter that they can't meet his expectations. He needs to find another doctor. What a JOKE! God help anyone who receives any kind of a care from them. They don't like to be questioned or having any kind of attitude. Even when they are in the wrong. By the way the surgery cost 22,000 and some change. Not to mention he can't properly use his arm either.
Solo
Oct 07, 2021
Had stress test this morning.hated the test but the Tech's that attended me while I was getting were amazing and friendly people. Didn't think I was going to make it thru the test.but you guys rocked today. Thank you for being understand of my PTSD. and thank you for talking me thru it. Thanks also to the driver's that escorted me to the entrance.
Carey Vess
Mar 23, 2021
CHI has been one of the best places for many people I know. They may be busy because they are good but it's worth a little wait.
Deb W.
May 16, 2020
Waiting on a call from Memorial scheduling for 6 days. The office ask what number was a good number to call during the day. I gave them mine as my husband can't answer his phone during his work hours. The testing my husband needs is urgent as he has had episodes of hand numbness and face, chest tightness, dizziness, high blood pressure. He called Friday talk to a lady who was rude said, she called him, but he didn't answer. Well not my number. They have yet to call back with a date or time as she told him they would. Very concerned. Looking for a new specialist today.
R. RIgsby
Apr 27, 2020
Here is one medical institute to steer well clear of and who graphically demonstrates the state of healthcare provisions today. I was specifically told that I could obtain an immediate appointment for a needed 2nd opinion with Dr. Stephen Monroe, Jr. as a new patient but first needed a referral from my general practitioner. I spent the time necessary to obtain that referral and had it forwarded.

I then had to spend time necessary to jump through all the Blue Cross Blue Shield insurance hoops to ensure coverage that went on for what seemed like hours between time with the provider and BCBS. When all of the business end of the matter was concluded, I contacted appointments to confirm my ability to see Dr. Monroe Jr. and was subsequently told that he doesn't have any appointments available and that while that circumstance may have been true during all the preliminary information and tasks that I had to perform prior to making the appointment, that it was now not the case.

This is what patients face under the healthcare system. There is a total lack of common sense in holding my appointment slot for me until information was complete, instead merely having me spend 2 full days obtaining their prerequisites only to find that I no longer had an appointment slot available. This kind of scenario is all too common and leaves patients delving deep into the complexity of the insurance/provider struggle to first and foremost make absolutely certain that the provider has all their costs pre-approved and covered, stamped and codified before ever adding the patient into the equation.

Our need for care and the matter of addressing our concerns unswervingly comes secondary to provider reimbursement and the host of staff at these clinics are well-disciplined to focus entirely upon guarantee of payment by your insurance above anything else. Yet, when you read their website, every single clinic has a company motto and claim that they focus first and foremost upon their patients in a friendly and caring environment, with attention to your medical needs and assurance that you as a patient represent their primary reason for existence.

Not a word of that often long-winded and emotional diatribe even comes close to accurate because there are more actually only two issues that all the staff and providers ensure. They make certain that your insurance covers the visit and procedures and that their reimbursement has already been pre-approved. Beyond that, you will find your role as a patient seeking evaluation and treatment to become nearly non-existent until those primary objectives have been satisfied. Chattanooga Heart Institute would get zero stars if such a rating were available.

And to add insult to injury, offered me an appointment with an alternative physician but yet not within the timeframe necessary to meet my needs as did the original appointment. They wanted to ensure their payment first, then simply offer whatever was subsequently available. Take your healthcare concerns to a center that establishes you as a patient first, then let them ensure their payment coverage after your appointment is assured. Otherwise, you're wasting your time.
John Russell
Jan 22, 2020
Insurance mill.can't even remember your name but know your insurance coverage by heart! Every appointment began with "good news we want to run test "ZXC" and your insurance covers it"! Had fights with Blue Cross all the time for the constant unneeded tests. Needed bypasses redone for years and CHI refused making me live on nitroglycerin because they had no Surgeon qualified to do what was needed! Gave up, got new Doctor who referred me to new Surgeon at Erlanger who did surgery, now nitro free and feel better than all the years with CHI! BTW, their Cardiac rehab is great! Do your research, heart surgery has a higher success rate at Erlanger than at Memorial. RUN Forest, RUN!
Matt Mazurek
Apr 23, 2019
Awful took 3 months from start to finish. Went for routine check up after an issue with dizziness, got billed 250 for lecture on vaping and an EKG. Took another month for echo and stress test which was billed 550 for that by hospital and then 400 by heart institute for I guess referral/reading of results because I never went back for a follow up. Oh yeah and had to wear the heart monitor twice because they couldnt download results the 1st time.

If you just wanna give away money go here otherwise look elsewhere as they don't care about patients only cash and they give no fore warning of impending costs. My wife works in the medical industry and she told me when this was done to move elsewhere as they didnt seem to have a clue what they were doing and that was before the bill came. You have been warned!
April Smith
Mar 11, 2018
Both me and my husband have been patients here for over a year. They obviously have too many patients and not enough Dr's. They can never get you in when you are having issues. My Dr needed me to see someone asap and got told the soonest they could get me in was January. On another account, my husband has been having problems since birth with his heart and kept ending up in the er over it. Thankfully we went to a different hospital and they referred him for a second opinion with another cardiologist. That other cardiologist was able to do a simple surgery to fix his problem and his Dr at the heart institute wouldn't. This place is so overrated.