Great staff. What can I say?…read moreGetting ready for a stress treadmill test. They were able to diagnose issues with my heart and get me on the right meds. Dr Mokaberri and Dr. Sylvan (original Dr I saw) over 15 years ago.

Incredible staff and Dr. Mark Miller was attentive and compassionate to my needs. My heart was…read morehaving issues but this team took great care of me. I felt welcomed and respected. I highly recommend this cardiologist team. My first time visiting, Dr. Miller did a EKG test then immediately had me scheduled the following week for a stress test and ultrasound of my heart to make sure I was healthy and thank God my heart is good to go!

I had a wonderful experience at Cardiology Specialists of Orange County recently. I went in due to…read morean elevated resting heart rate and needed to be fully cleared before an overseas trip within 2 weeks. PA Tiffany was amazing. She was very thorough with her examination, patiently listened to all my concerns, and took the time to answer all of my questions. Her nurse was also very sweet and helpful. The entire staff at Cardiology Specialists of OC was pleasant, professional, and caring. One person who truly stood out was Charito in scheduling. Getting a stress test, heart monitor setup, and follow-up appointment scheduled in less than two weeks was a major challenge, but Charito truly worked miracles. She was incredibly kind, caring, and professional throughout the entire process. She went above and beyond to make sure everything was completed right on time. I sincerely want to commend Charito for her dedication and exceptional patient care. Her extra effort made a stressful situation so much easier for me. I highly recommend Cardiology Specialists of Orange County to anyone looking for a cardiologist.

While I appreciate getting my heart monitor here, place is bad…read more It is a very old building and the signage is very poor. I stood in line at the wrong place for 10 minutes before someone asked what I was there to do and told me I was on the wrong line/area. The walls are painted a dark yellow color and need to be re-done either bright white or a nice light blue. It makes it look even more depressing. Please step it up.

Immediate and personalized care! Everyone from the front desk throughout my experience there were…read morevery caring and supportive! I highly recommend this urgent care with state of the art equipment available!

Dr Vesal has been my primary for over 2 years!! He's great and knows what he is doing! Never fails…read moreto make me feel better.

I have been going to Dr Tsai for semi-annual checkups for several years. Dr Tsai is an excellent,…read moreknowledgeable, experienced, skilled physician whom i highly recommend. He is not too old and he is in the prime age of his medical career and knowledge. He has helped me greatly improve and keep all my age related symptoms within the desired range: cholesterol, blood pressure, glucose level etc. He has a very friendly manner, easygoing interaction with patients. Best of all. the waiting room is never crowded. His office works efficiently. so i have never had a long waiting time. His appointments are always right on time. True story. After every lab blood test, Dr Tsai always takes the time to promptly follow up with a personal phone call to give me a quick summarization of the test results.

Several members of my family are all patients of Dr. Tsai and I can say wholeheartedly that he…read moretruly is the best doctor. While we were initially disconcerted by the introduction of his CAP membership fee, we quickly realized it is absolutely worth it due to the unparalleled level of wonderful care Dr. Tsai provides. He genuinely looks after my Grandma, and always takes his time to follow up with my husband and I. We all feel blessed to have found him and can't recommend him highly enough!

I am a patient of Dr. Avinash Sharma @ Cardiology Specialist. I highly recommend him. He is very…read moreprofessional, knowledgable and respectful. Very pleasant personality. Explains everything to your satisfaction and gives me the feeling that I am not "just a number" for him but he deeply cares for me. Wait time is very minimal if you arrive on time for your appointment. Thank you Dr. Sharma Never had any problems with ooffice staff

I've been a patient of Dr. M. Eslami since 2017. He is an amazing cardiologist. I needed a…read moreprescription refill and it turns out I have an outstanding balance. I said I will pay it next Friday when I get paid. The billing office told me they won't refill my prescription until than. Its like 80 bucks. I asked if I was dying and needed the refill would the take care of it than or are they that petty over a small balance. The billing office informed me they aren't being petty and if I am dying because I need a medication to take myself to the hospital. I keep coming back because the medical staff is top notch, but the front desk and billing department need some retraining in customer service and basic human decency. The old nurse who was great when I first started coming here now works at my childrens primary care doctors' office said she left because of the same front desk staff. That shows that a seasoned professional who provided stellar care left because of the same workers. I'm sure they will leave a response about how its my fault and how I'm rude, but come on, such a simple request. I do intent to pay the bill but no need to be condescending and indecent.

If there were an option to choose no stars I would…read more It saddens me to leave such a negative review. When I initially was seen at Pacific Cardiovascular Associates (seen by the nurse practitioner) I felt heard and cared for the way a patient SHOULD feel when being seen by a provider. She ordered testing of my heart and placed me on beta blockers to address the PVC's I was experiencing. Once I got pregnant she switched me to a different medication that is safe for pregnancy. I have been on that same medication for over 2 years. To bring this up to date: I ended up in Hoag NB with bradycardia among other symptoms back in July. I HAD NOT BEEN TAKING THE BETA BLOCKERS (they are only as needed when my PVC's are to overwhelming). At the time of my ER hospital visit I hadn't taken them in OVER 3 weeks. I was told to follow up with cardiology so reached out to my PCP to get an authorization. I was told by PCA since it was an urgent follow up I could call and have it scheduled right away. When I did receive an approval from my insurance I called to schedule but was told the soonest available was over a month out. I can understand that but based on what my last conversation was with them it contradicted what I had been told. Not a huge issue I understand these things are not in anyone's control at times. The day of my appointment I was scheduled to see Dr Champion. Upon his entering the patient room there were no questions asking what I was experiencing, what has been going on currently and no follow up on symptoms. He immediately started with "well based on the medication your taking you can expect to have it lower your heart rate as well as your blood pressure." Mind you I hadn't been taking the medication. Every time I tried to speak to explain that, he continued to interrupt me by saying "yeah, I read the report" over and over again. I don't know exactly what report he's referring to, If he HAD read the report, he would have seen the notes stating the medication had not been a factor in the bradycardia. Finally after multiple times of trying to communicate with him I asked "can I please speak" his response to me was "WOW!" After that, the whole visit went even further down hill. When I was stating experiencing the bradycardia I was met with a very rude "well how do you know that?" It was not a pleasant conversation. Every time I brought something up I was met with a condescending attitude and tone. I honestly don't know how this dr is practicing medicine with how he is. I'm not sure how he addresses the majority of his patients but the unprofessional approach and lack of patient care and concern is very alarming. This has all been so very disheartening. All of the waiting to have a "follow up" has not resolved one thing. And the very next day after my appointment with Dr Champion he denied a request for a refill on my beta blockers. If he would have listened to anything he would have known that the bradycardia occurs only on occasion and I ONLY take my medication as needed when my heart rate is normal. The same way someone who may be prescribed a medication that is not safe to drive with only takes it when not planning on getting behind the wheel. I've called the office 2 days in a row and have been unable to speak to anyone. I've left messages asking for a return call and nothing. Now, the only medication that has worked to relieve my symptoms of PVC's isn't readily available. This feels very malicious and unnecessary. A professional acting as unprofessional as you can imagine. I will be filing a complaint with the state as well as my healthcare provider.

Dr Champion just doesn't care. I wouldn't call him a bad doctor, but I have asked for Testing that…read morehe didn't want to give me and then it turned out that it was something I really needed because I ended up hospitalized. You have to be your own advocate I am now seeing someone else and I'm much happier.

I mentioned to her that I have kidney stones; She proceeded to prescribe me Amlodapine for my…read morehypertension, a calcium channel blocker, which increases the likelihood of forming kidney stones.

Today I had an appointment to see dr.li at 9:10 it went by pretty fast she was very nice and…read moreprofessional her office is very clean and the front and back are very friendly staff I would totally recommend coming here

Good luck getting an appointment. While Dr Marin is a great cardiologist, you're only as good as…read moreyour front office staff. His appointment taker Myra never answers the phone, so you'll be forced to leave a message to set an appointment. And then you fall into the abyss. Although her voice mail greeting states she'll return the call within 24 hrs, and pull be lucky if you ever hear from her again. Either she is severely underpaid, is totally overwhelmed, or hates talking to people, but you won't get a return phone call. After numerous calls and msgs and no response, it's very easy to move on and replace Dr Marin. Sadly his "Director of First Impressions" is certainly a detriment to his practice.

I have been a patient of Dr. Marin's for a couple years and still continue to have follow up…read moreappointments every six months. I feel very blessed that he is the cardiologist who happened to be on call the day I was taken to the emergency room. His quick and decisive action was great which is needed in life saving circumstances. feel like I am in the best hands for my care going further. I would highly recommend him to anyone and everyone who needs cardiac care.

AWFUL SCHEDULING PATIENT COORDINATOR EXPERIENCE: On Wednesday, June 17, 2026, between approximately…read more10:30 a.m. and 11:45 a.m., I called 877-430-7337 to schedule a stress test and spoke with a representative named Karen. Unfortunately, the interaction was extremely disappointing. After being on hold for more than 45 minutes, Karen was rude, dismissive, and condescending during our conversation. Before I was able to fully address my questions regarding my appointment, she abruptly disconnected the call. Because I was concerned that my appointment had not been properly scheduled, my husband, who is the policyholder, called back shortly afterward to confirm the appointment details. He was connected with Karen again. While attempting to discuss the prior interaction and seek clarification, Karen hung up on him as well. Your phone system states that calls are recorded. Therefore, I am formally requesting that both calls that occurred between 10:30 a.m. and 11:45 a.m. on June 17, 2026, be reviewed and that appropriate corrective action be taken. When I asked to speak with a manager, Karen stated that management was in back-to-back meetings and refused to provide her last name. She repeatedly interrupted us, cut us off while we were speaking, and made no effort to resolve our concerns. Life is stressful enough, especially when dealing with medical appointments. Patients should not be subjected to disrespectful treatment when simply trying to schedule necessary healthcare services. I find it concerning that this type of behavior would be tolerated in a patient-facing role. I would appreciate confirmation that this complaint has been received, that the calls will be reviewed, and that appropriate follow-up action will be taken. Thank you for your attention to this matter. Sincerely, XXXX

I had a bad experience with PCA at the Irvine Office with dr Giglou. He was very arrogant and said…read moremy family member did not have any heart issues. He didn't even provide us with any instructions about the monitor and the importance of taking the medication EVERY DAY. I requested a copy of the notes from my visit and noticed a discrepancy between what occurred during the appointment and what was documented in the medical notes. It's very important for medical records to be accurate and complete. Especially if you're dealing with heart problems. There was also an issue with communication from the front desk regarding the monitor. She provided us with the incorrect information about the monitor. She informed us that the monitor would be sent to us by mail and that we would need to follow the provided instructions to place it on the patient ourselves. I found out later that the monitor was received by the office, but we were never contacted to let us know that it had arrived or to provide further instructions. Phone is not a reliable form of communication. Their phone starts with 866 which is spam. This is unbelievable. The office should have provided a clear written notification such as a letter or text message. Relying on a phone call, when patient is expecting the monitor by mail, can lead to confusion and delay. I wish I had taken my family member to another doctor.

I highly recommend Dr. Sean K. Hirota，I had a wonderful experience with Dr. Hirota. He is extremely…read morepatient, kind, and professional. He took the time to listen carefully to my concerns and explained everything clearly and thoroughly. I never felt rushed during my visit, and he made me feel comfortable and well cared for. I would highly recommend him to anyone looking for a caring and trustworthy cardiologist!

The Santa Ana location is the worst! Dealt with the medical assistants for month and got my care…read moresuper delayed because of their laziness and unprofessionalism. It was the last straw after MA Josefina yelled and talked back at me for no reason... I was so confused at her childish behavior. Super unprofessional and ignorant. So sad I never even had a chance to meet Dr Hirota. I ended up transferring my care to another cardiologist. Don't come here to waste months of your time. Our health and time is limited. It baffles me how people go into this profession and treat patients so poorly.