If I could, I would give negative stars. "Dr. Byun" performed the TAVR procedure on my father. The procedure failed and maybe that wasn't his fault, however, I do blame him for the outcome we experience. My father passed away 2 weeks after. My father had dementia, aFib, and severe Aortic Stenosis. During his appointments before the procedure, Dr. Byun was incredibly negligent. I made very many comments and asked several questions since heart health plays a major factor on blood flow which inherently affects your brain. He made me feel stupid and even responded with "I'm very good at what I do." He performed 0 cognitive exams. After the procedure, Dr. Byun was so proud of himself for "bringing back an 83 year old body" that almost passed away. During my father's check up, I began to cry after Dr. Byun said he can only increase the quantity of his life and not the quality. NATURALLY, this broke my heart, and Dr. Byun's immediate response was "I know I know, we all want grandpa to live forever" in the most condescending voice I think I have ever heard from a "medical professional". I then became so upset I had to leave the room and 2 very kind women comforted me and allowed me time to cry alone in the employee restroom. The lack of sensitivity and professionalism from Dr. Byun made me see that he doesn't do what a he does out of love for helping others, he does it because he thinks its fun. He treated my father like a fucking experiment and I find that to be disgusting and disturbing. 2 and a half months have passed now and all I want to say to Dr. Byun is fuck you, fuck your education, and fuck everything you love. You have no idea who that man is to me and the combination of your ignorance on dementia and heart conditions, your lack of empathy and willingness to learn, God complex, and ego that's bigger than your 5'6" body is what makes me want to write this review at all. Please, humble yourself. read more