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    Edward J Yoon, M.D

    5.0 (2 reviews)
    Open 8:00 am - 5:00 pm

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    4 years ago

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    4 years ago

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    Christopher Chen, MD - John Muir Health Cardiology

    Christopher Chen, MD - John Muir Health Cardiology

    5.0(3 reviews)
    17.6 mi

    I cannot say enough great things about Dr. Chen. From the very first appointment, he made me feel…read moreheard and genuinely cared for. He takes the time to listen, answer every question, and explain everything so thoroughly in a way that makes you feel comfortable and informed. My primary doctor referred me to him because she knew about the bad experiences I had with other doctors in the past, and I am so grateful she did. Dr. Chen has completely restored my trust and confidence when it comes to my healthcare. He is compassionate, patient, knowledgeable, and truly goes above and beyond for his patients. I highly recommend Dr. Chen to anyone looking for a cardiologist who truly cares.

    Dr. Chen is so next level!…read more In a world where docs are now often forced to conform to the corporate narrative of big pharma, big money, especially under hospital/IDN umbrellas, he does not practice cookie cutter cardiology. He was so thorough in explaining my calcium score test (even though it was a zero, he took the time to teach me what is looked for and the fact that only calcium, not soft tissue plaque shows up on this test). He shared images that no other doc in 4 yrs since took the time to explain. He went into great detail about how to monitor and optimize my heart health. I was so impressed by his down to earth and approachable personality, and even more so by his extensive and up to date knowledge; things have changed in cardiology, and he's young, and not stuck in old ways as other cardiologists can be. I would 150% recommend him to anyone, whether looking for a baseline on your heart health, or struggling with serious heart issues, he is a gem and such an asset to John Muir!

    Harry Dassah, MD - Dr. Harry Dassah

    Harry Dassah, MD

    1.0(3 reviews)
    2.6 mi

    I have never in my life been to a doctor that has been so rude to…read more I originally called the Fairfield office (I'm assuming it was supposed to be his wife) and she was on vacation so the receptionist scheduled me for the next day at the Vacaville location. The only thing I needed was a referral for a dermatologist ASAP because my condition was getting worse. The day of the appointment I took off time from work, got there early, filled out the paper work, and ended up waiting about an hour. The nurse brought me back finally and started doing an EKG on me. I thought that was weird and asked her why and she said everyone gets one....... For a referral? Mind u I'm in my 20s and have never had a history of heart problems. After she took my reading the doctor came in and he was in an awful mood (but it wouldn't surprise me if he's like that all the time). He looked at me. Stared at my chart for a few minutes. Then asked me why I was there (in pretty sure my chart should have said why). I told him and he started to get angry towards me. He said I was wasting his time, and why was I there, etc etc etc. then he started yelling at his staff (I did feel bad for them) asking why I was there. At this point I wanted to get up and run out the front door!! How unprofessional and rude!! After his rants and ravings I finally got my referral and the worst experience at the doctors. About two weeks later I got the bill and it was over $400 with a lovely unnecessary $50 EKG charge. Wow. I filed a 3 page claim with my insurance provider about how traumatizing my visit was. I will never go back to any of the "Dassah" doctor locations and if you have half a mind you won't either!!!!!!

    Do NOT waste your time with this guy. He's got a captive audience in Tricare Standard clients and…read moreseems to not care one iota about his business, practice, or his oath as a doctor. My experience: I arrived 20 minutes early, filled out the new patient intake, had my vitals taken, and the doctor wasn't in the building at my appointment time. He showed up 25 minutes late, and wanted me to do an EKG on their broken equipment. How does a cardiologist have a broken EKG machine? The mobile machine wasn't going to be there until 1.5 hours after my appointment. When I asked his staff what the EKG was for and why I was being asked to do it on a broken machine, I got blank stares and "What?" After repeating my concerns to the doctor, he was rude and dismissive and when I stated that I wasn't happy, he said "Let's move on" to his staff and walked away. I took my paperwork and left. This was the WORST experience I've ever had with a "doctor". Pathetic, really.

    Edward J Yoon, M.D - cardiology - Updated May 2026

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