Routinely gives 4 vaccines at once! Told my ex to spread them out. Called the office and pleaded with them to stop giving My child 3 vaccines and the flu shot in one day! read more

Dr Tsai has been my 4 children's doctor from day one, He's the best. I received a letter stating that he will no longer be taking their insurance, so I called the office to find out what insurance is he accepting so I can switch my children to that plan, sadly they informed me that he was no longer working in that office. Does anyone know what office he has transferred to? Please let me know read more

Dr. Tsai has seen my son for 3 years now and is currently seeing my newborn. Dr. Tsai is patient and very knowledgeable with his work. He takes the time to answer questions and explain everything that is going on. Definitely recommend him! Also, he is not pushy, he supports you and your decisions with no judgement. read more

Dr. Tsai is very knowledgeable and friendly. He takes the time to answer any and all questions. He's very good with children and makes sure they feel comfortable. I appreciate how you never feel rushed and he truly cares about the wellbeing of your child/children. A+++ read more

We've been (was) with this doctor for almost 9 years and now a new baby came into the family so I decided to use the same doctor he is NOT the best but we already know him today was my granddaughter first shots and only because i was 22 minutes late he wont see the baby, after so many years Im a resort parent for this baby at 66 years old is not easy getting baby ready and getting out of the house and even braking down in tears wouldn't help, care less, rude, and heart less that what they are. read more

Dr. Tsai is great! He takes his time with my kids. However, the staff are horrible. Whenever I call, they will put you on a hold and will forget about you. When you try calling back, it's like they've never spoken to you. I am not sure if they purposely do it, but this happened to me a few times already. It's understandable to wait a few minutes on hold, but being on hold for 30mins to an hour, and then forget the questions that you've ask is not acceptable. In person, they are okay. I wish the clinic has some good staff. Otherwise, this would have been a five star pediatrics. read more

I was very unsatisfied with my previous pediatrician and his office, so was looking for a new one. We saw dr. Tsai was close and had excellent reviews, so decided to see him. Between my 2 kids, we've had a couple regular check ups, and a few appts regarding some concerns I had, and every time I've seen him, I've been extremely satisfied. He is very patient, and never makes me feel rushed or stupid when I share my concerns, very gentle with the kids, provides excellent and knowledgeable advice, and really listens to you. I also appreciate the staff working here. So far from the times we've come, they've been polite and great with my kids as well. The last thing I appreciate is that on the weekends when they're closed, they do have a number you can call to speak to a doctor. The office also looks clean as well. Overall, love this doctor!! read more

Dr Tsai is very nice. He always takes his time to answer all our questions and check on my son. We love that he is very nice to his patients. My son is almost 2, and after having gone to another pedia when he was younger, we made the best decision to change his pedia and went to Dr. Tsai. His staff are very nice as well. They take care of the patients well. read more

My kids have been with Dr Tsai for years now. Dr Tsai is very patient and accommodating to my always hectic schedule. The staffs are also very nice and professional. Overall I would say this is one the best family doctors in the Chino Hills area and worth the drive even if you live farther. Thank you!! read more

Dr. Tsai is a truly excellent doctor. All three of my kids have seen him since they were babies (now 9, 5, and 1) and we have been through so much medically with them. Doctor Tsai has always been attentive, caring and an extremely competent doctor. He listens to you and gives you all of the time you need to ask questions and talk. He very often calls with lab results , etc even if its later in the afternoon and gives full explanations without any rush. Him or dr Lu are always available off hours which has been absolutely invaluable for me as a mom. I have felt bad calling with questions, but they are always patient , and extremely helpful. The cherry on top is that the office staff is SO very pleasant and really on top of their work . Honestly , I can't say enough about this office and my kids love it too! read more

Dr.Tsai is awesome! All three of my boys have been going to him since they were born, they are now 10, 8, and 4. He's so friendly and my kids love him. He was so calm and understanding when I'd call all hours of the night as a first time mom. The staff is just as friendly and helpful! read more

Staff is rude. Unhelpful and although doctor is amazing. Receptionist and medical assistants are rude and just purposefully slow. Dropped a physical off told it would take 24 hours. Dropped off at 10 Am and called back next morning at 9 to see if we could pick up for school was told they will call you and got hung up on. I have to go to work so I can sit around and wait. Waited til 10 (24 hours later) called and they said it's not ready. I said can I get a time frame they said we will call you and hung up. I'm literally not doing this for fun. They can obviously see I need it, so instead of being helpful they're rude. This is a great office if you don't need anything. But if you do it's not the place for you. read more

I was pleased with Dr Tsai. Office staff was very nice. It is hard to find good customer service in Cali. I recommend this Dr. He listens and takes his time with his patients read more

Wonderful Dr! Very patient with a very active 2 year old boy. Clean office and great office staff. Little wait time.

Both my kids have been going to to Dr. Tsai since they were newborns my son is now 10 and my daughter is 7. He is a great doctor, very passionate and considerate. Very knowledgeable and helps you understand what's going on during your visit and after if you need to follow up with him. His office staff is just as great, very friendly. What I also love is how quick you can get an appointment with him, mostly same day or within the same week. :) read more

We had our first appointment with Dr. Tsai today and he was great. He was friendly and put my children at ease (I have one who is nervous in new situations). He joked with my son and was able to answer all of my questions. The office was clean, friendly and I'm stoked to have finally found a good pediatrician. read more

Dr. Tsai has been our doctor for the past year and a half and we feel extremely blessed to have our daughter in his care. Every time we have been to the office the staff treats us like VIP guests and I have also witnessed that they naturally treat anyone who walks through the door the same way. The nursing staff is extremely kind and personable and Dr. Tsai takes very special care to be sure he addresses all concerns. Any time we visit he has treated my teenage daughter with the same respect as if he were speaking with another adult, taking all of her concerns and questions seriously. We recently brought her in with some concerns and had some lab work done. I was surprised to receive a personal follow up phone call from Dr. Tsai himself to let us know that everything looked great with the results the day after the labs were done. I was surprised how quick it all happened and it really helped put my daughter and myself at ease. He also made sure to ask if we had any other concerns he could help with before we come in again. Dr. Tsai is the most caring doctor I have ever encountered. I wish I could find a doctor like him to see the rest of our family! I highly recommend Dr. Tsai to anyone with kids and wish him and his staff the best for continued success in his practice. This office definitely sets the bar for quality pediatric care. read more

My daughter has never been comfortable with any doctor. She's always felt intimidated or afraid. However, since I found Doctor Tsai online and made our first visit, he has made doctor visits for my daughter a comfortable experience. He's very warm and he's able to talk to the kids in a way that's convinces them to follow his direction. my husband and I love him and would recommend him to family and friends. read more

All 3 of my children have been pt.'s of Dr. Tsai since birth. They are now 6, 5, and 3. I have to say, he really does take his time with my family and always answers any concerns that I have. He is very professional and great with kids. I'm glad my cousin referred him to me because it can be tough finding a Doctor that really cares! Sometimes there is a long wait but I don't mind waiting for his services. read more

I brought my daughter to this office after reading good reviews online..its hard finding good doctors nowadays..but so far Im happy...Dr Tsai is a very nice Dr. and easy to talk to...The front office girls are also very nice and helpful which i think is very important to a succesful office.... read more

Dr Tsai is truly fantastic. Both my daughters have seen him their whole lives. (2) (5). I would recommend Dr Tsai to anyone looking for a fantastic Pediatric Doctor. read more