I've been seeing Dr Liu for over 21 years, he's taken good care of me and my family in that time. He's always made great effort to keep me healthy, it's not his fault I don't always follow his advice to the letter. I gladly recommend him as a quality care provider. He's been my primary care doctor for my entire adult life. His office has always been clean and ideal for optimal health. read more

Dr Dennis is a great listener and questioner. He has a tremendous knowledge base and experience to guide him. His office arranged all testing for me, it was appreciated! Great staff that are capable of wrangling all the paperwork. I really appreciate his thoroughness and evaluating the meat bag that I reside in, lol! read more

Dr. Liu is so rude, no patience and no care. When I asked his opinion about should I continue or change the doze of my existing prescription, he criticized me about the question was without wisdom and not appropriate!!! During the visit, he did not response almost all of my concerns and questions, without further discussions. He just focused on reviewing reports he received from lab . This is the worst doctor that I ever experienced!!! read more

EXCELLENT Dr. who truly cares about his patients. Always giving sound, professional advice.

COVID-19: Social distancing is enforced at this establishment. All of the staff wears a mask. All patients are expected to wear a mask too. The staff also wears gloves. There are some hand sanitizers available for patients to use. This place is open, but at limited capacity. They are also sanitizing in between patients. COVID-19 Vaccination Proof: This establishment currently does not require proof of vaccination. They do not allow pets in their establishment unless it is a service animal. Parking: The parking lot for this establishment is pretty massive. However, this massive parking lot is shared by several other doctor's offices. So, the lot does get full very quickly. If the lot is full, park on the street. Staff: The staff here are very friendly, compassionate, efficient, professional, and kind. They accept both cash and credit cards. There is no credit card minimum. read more

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Recently I switched my main family doctor to Dr Liu, due to many great feedback from him! However, I am very disappointment from my call today. I called today and try to make an appointment, the lady said their first available appointment will be sometime in Aug! I then ask that I really want to see Dr Liu for physical check up and some immediate care on my palm. Then I was been put on hold, after few more mins, she came back and said, after checking, we can only take you in until 9/4/18 (notice today is 7/2/18). She also claim that, when you switch over from beginning of May, you should have called in to make appointment!? I am a little shell shocked, since when I can detect potentially that I need an appointment 4 to 8 weeks out? You make the call, pretty disappointed on the staff and their professionalism, my 2 cents. read more

He still our best family Doctor. I have 2 times tonsil pain during the Pandemic. He still takes me in the first time. The second time he referred me to Dr. Ted Shen. The staff got me the approval in the morning. I went to see Dr. Shen at 2pm. Dr. Liu just called me at 4pm to fellow up on me. I counting my blessings to have him as our family doctor. read more

Our life became so blessed & changed hath wise when we were recommended to see Dr. LIU for my husband & I both go see him as our regular physcian, when our other physcian retired. We"ve thanked Dr. Reddy who referred us to Dr Liu. D1&r. Liu cares & is dedicated to your good health & well being in every way. Every question gets answered & he spends his undevoted time, in the office, in the hospital, & or even in a nursing home recovering, he is there. God willing, my husband & I will be fortunate to be blessed w/ his excellent care, he makes it a pleasure to go "to the Dr's office each visit" read more

I just had my first appointment with Dennis and so far so good. I was looking for a new primary care physician after discovering that my last one, Dino Clarizio, in my opinion, was a quack. It's not that I am a medical expert by any stretch of the imagination, but if it looks like a duck and it sounds like a duck, the chances are it is a duck. To wit: When I am told 30 days before I have a heart attack that my heart is fine, that is strike one. When 45 days after having complete ultra sounds on both of my legs that the diagnosis is that the arteries in my legs are clear, then finding out from another doctor that both arteries are completely blocked, that is strike two & three. I was referred to Dennis Liu by my cardiologist extraordinaire Douglas Yun. I will keep you posted on the progress as we move forward. His staff, in particular Nia, is very personable and nice. Not at all like the usual pretentious uptight front end staff that you usually encounter. If you are looking for someone new in the internal medicine arena give them a try! Update:2/25/12 Well there has been a development that have caused me to remove my rose colored glasses. I may be on the move again if the problem is not resolved. Be very wary of the billing company that they use. The doctor's office is not generating their own invoices. I still don't know who they are, someone in the 818, but they have yet to send me one that is correct. read more

Dr Liu is my new doctor.. I called his office today because I'm experiencing some severe pain in my leg. The woman receptionist answered the phone and said that I cannot see the doctor until the end of next week (meanwhile I'm in pain...) I asked if I can talk to him on the phone any time before then and she said "no, he'll be too busy with patients" I then asked what she suggested I'd do and she replied sarcastically "well I guess you should go to urgent care then huh" My first impression is not good at all. Hopefully the doctor is better than the customer service read more

Dr. Liu had been my doctor for 3-4 years. I love Dr. Liu, he is friendly, knowledgeable and paid tons of attention to my concerns. But it is the receptionist that I ended up switching doctor. She has never been friendly to begin with. But the last couple times I called to make appointment, she got ruder and ruder. It was beginning of the month, and she said the only time available is at the end of the month. I asked again if there is absoulately nothing available for 3-4 weeks?! She replied sarcastically and rudely and almost hanged up on me. I mean, how come, I asked her very politely. I think they mustn't pay them that well or the Dr. just doesnt treat his nurses well or something. I called to cancel my appointment few days later, she was still mean and rude. I guess this is the end of it, life is too short! I hope Dr. Liu will replace his receptionist and the nurses otherwise he will lost all his patients. read more

Called to make a new patient exam, they don't have any appointments til mid January?!? And the first appointment has to be a meet and greet and then I have to make another appointment for the actually physical exam. Which they will bill my insurance twice for each visit?!?! I only get one physical exam through my insurance so you want to make more money by seeing your patients twice? Awesome not going here... read more

Dr. Liu is great and the staff is very reasonable. I happened to see the other feedback and want to contribute my feedback. He is my primary for 2 years now and I feel I am in very good hand. Good Doctor is always busy. People who complaints when they can't get appointment is stupid. read more

My insurance changed, so I am no longer able to see my old doctor. Happily, I had the opportunity to visit Dr. Liu when my old GP was away and was so impressed with him that I did not hesitate to make him my GP. Dr. Liu is very thorough and takes his time with you and has a nice bedside manner. He's in a new office now on Duarte and I think his office staff has changed and I've had no problems with them. read more

My new GP. Very nice guy and knowledgeable. I'm glad that I found him in my area. Very nice staff and responsible. They would spend time and follow-up with you. The office is nice and warm. I like the staff especially, they are very personal and always willing to help. I always say this to my friend, a good doctor needs a good medical team as well, the patient cannot always get a hold at the doctor and they always communicate with the staffs first. read more

Dr. Liu has been mine, and my family's primary physician more the 10 years. I was just moved to the area, and in search for a doctor for the entire family. We met in the ER while I checked in without an assigned doctor. There he came, he looked very young to me at the time, and I was wondering if he's an intern. While under his care during my stay in the hospital, decided to take him as my primary physician (to try out). I'm picky in choosing a doctor for my health, but he secured my thoughts during my 1st visit to his office. What I want to point out is that Dr. Liu is friendly, knowledgeable and paid tons of attention to the patient's concerns, and never will make you feel rushed or neglected. Even from the beginning, I will tell the doctor if I'm not satisfied with his staff how they not doing a good job, and I will id with the name. He assured me that he will speak to them, and things will get better for a while. I had a similar experience like Jeff J. not long ago, which I was feeling very ill, but not sure I need to go to the ER. She gave me an appointment for a week later, even after I told her the urgency. I was very upset by her respond, and I told her at her face (on the phone) about the unacceptable handling, and insist on, she must bring my issue to the doctor now. Then, she came back to give me an appointment for 2 days later. But, I was already so sick on the day of the appt., Dr. Liu asked why did I see him sooner. I mentioned the events to Dr. Liu, he wasn't happy, and said to me "I will speak to them, and you can insist to asking for me or leave me a message with the reason of the call, I will call you back if I was with the patient at the time of your call". I guess it works this time, the attitude with the staff have been improved. Trust me, It's definitely not because Dr. Liu doesn't treat his staff well. In fact, he's being too nice. And, he always returns calls as soon as he can, even at night if necessary. Even if at night if necessary, the office phone will page him. I'm sorry for those who changed doctors because the attitudes of the office staff. You had missed the chance to having a good doctor for your health. Especially, now-a-days! read more

My elderly mother has been under Dr. Liu's care for the past few years, and was recently admitted to the hospital for unknown reasons. He treated her I feel, as he would have treated his own mother, and us like his family. I am happy that there are still good, compassionate doctors who clearly care about their patients, and I am thrilled that my mother found him. Happily, she is being released in a few days. read more

Dr Dennis Liu has been my mother's doctor for over 5 years now. My elderly mother has a lot of health issues. Since I am my mother's caregiver, I often interact with Dr. Liu often on my mother's behalf. Dr. Liu is one of the best doctor in the san Gabriel valley. Through the years, our confidence, respect and trust in Dr., Liu continues to grow. Dr. Liu is a competent and caring doctor. My mother never feels rush or neglected. I highly recommend Dr. Liu. read more

I have been going to Dr. Liu for a few years now and find him a very caring doctor. He takes time with you and any concerns you have. Dr. Liu and his staff are great. read more