Of coarse I'm here again to give this office a 10 star approval but it only goes to 5!! Abby is…read moreexceptional at her job she handles the day to day everything. If you need anything done paperwork, rescheduling, just asking questions ?? She is the one to talk to! She is extremely Patient, Professional, and helpful in all areas of this office. Dr Tummala is the BEST CARDIOLOGIST IN THE IE, she sees me and my husband and has given us such great care. We love this office and our hearts have improved so much since we have been under her care! Jessica is wonderful with the assisting and Valerie is the best TECH she is caring, compassionate and one of a kind person. If you want great front, back, office skills and caring you got it here plus the BONUS of a great Cardiologist you found your next office right here. I'll never leave until Doctor retires . Thanks guys for caring for me and my husband the BEST IF YOUR ABILITY AND THEN SOME

Dr Tummala is a very knowledgeable, caring, and attentive physician. I appreciate her…read moreprofessionalism .

Sent to Dr A for a possible cardiac issue noticed by my primary doctor. Dr. A spent a lot of time…read morewith me and explained everything he wanted me to do, the procedure I needed to have (some type of MRI-like procedure) and I just loved how he actually cared for my health but was very direct in what could happen in the future should I not make adjustments to my lifestyle, or even if I did make adjustments. HIGHLY recommend!!

I have Blue Cross PPO and I tried to make an appointment to be seen for a non work related cardiac…read moreissue, but for some reason this place wants to bill my insurance through workman's comp. I tried to explain to them that I just wanted to be seen as a non work related patient but for some reason they insist on billing through workman's comp. They said if they saw me then it would "turn into a workman's comp" and I would have to go through an adjuster which I don't understand because I want to be seen on a "non work related issue" I don't know if their billing practice is legal in this aspect. My 9 year old daughter has the same PPO insurance I do. If she has a cardiac issue will she have to go through an adjuster and be billed through workman's comp? She is 9!!! Needless to say, if you are a first responder. ( I am a firefighter ) then I would go someplace else. I am planning on filing a complaint with the California DWC.

Always professional, understanding and respectful and mindful of your time whether ai the Upland or…read moreMontclair offices

Consistent efficiency from Staff…read more. Excellent Quality Care from the Doctors & Staff !

The good Dr. may know his stuff when it comes to his profession, but his staff is the absolute…read moreworst. They answer the phone by putting you on hold without even announcing they're on the line. I talked to them 3 times today. The latest was at noon. They told me to call back after 2:00pm and I could talk to the doctor directly. I ask if they could just have the doctor call me and they said no, I would have to make the call. So, I did that and was told the doctor left at 1:00pm. So frustrating!!!!!! Enough so that I will find another doctor to go to and give my insurance dollars to. Good riddance.

Great Dr. He is very informative about results. I had to find a new cardiologist when I moved and…read morehe was one of the first I found. Very professional.

Excellent cardiologist, have been seeing Dr Pham for over 10 years. He's not only my Dr. he is my…read morefriend. Thea and Crystal are like daughters to me. Best I have ever been too. And believe me I have had my share of cardiologist in my lifetime.

the best dr pham and his awesome staff thea and crystal are…read morevery professional and caring i highly recommend sierra heart and vascular in rancho cucamonga, calif

Extremely disappointed. I thought that I had finally found a doctor who cared and could figure out…read moremy allergic reaction. Unfortunately, I was wrong. I was told that he was going to do a lot of research and get back to me, but it's been over a month and I never heard back. Extremely unfortunate, as I'm currently covered in a rash (hives??) and no idea why. :(

I want to start off by saying this review is not for Dr. Saini but for one of the nurses…read moreadministering shots at the San Dimas location. Dr Saini himself is a very caring concerned doctor and I would recommend him to anyone. TLDR The nurse at the allergy shot clinic turned me away today for my monthly shot because I was 3 minutes late even after explaining that Uber kept cancelling and how I would waste $40 for coming here. Would have expected a nurse to be more empathetic and understanding for her patient who needs care and timely shots. I went in for my monthly allergy shot today and I went in 3 minutes after 4pm because I had to order an Uber and it kept getting cancelled on me. The nurse came out and told me she can't administer the shot today since I arrived late. I didn't want to argue because there were a lot of people in the lobby but as I was walking out, I thought I'd go back in and explain the circumstances and how I'd have spent $40 for nothing for Uber round trip. I went back in and prefaced with an apology and that I'd be better on time and asked her to accommodate me this time. She said this is the policy and she will not administer shots. I explained to her that this is no small sum of money I'd be wasting and tried to get her to understand, but she says she can't make an exception for me and that she doesn't make the decision, to which i replied but you're the one calling the shots. After a few more back and forth I walked out, frustrated and angry for how little flexibility and empathy this nurse has for her patient. This wasn't the first time I felt this way about this nurse, as other nurses that I have interacted in the past were more personable and not so uptight. Sure, you have your "policies" but as a nurse working with patients, naturally you would expect them to be more understanding and accommodating to your needs and situation and I was very polite about asking her from the beginning. The way she talked to me was patronizing and as if she was a teacher in a classroom berating her students for being late. She could have as easily taken my apology and been the understanding older adult and let my trip not go to waste but this nurse worries more about her policies and fails to take on a more humane approach to treating her patients. I take time out of my work and time and money to come get this shot and just because I was literally 3 minutes past 4, she dismissed me without a second thought. This has really soured my day and sure maybe she had a bad day herself to make someone feel this way but this was definitely not professional on her part.

The Nurse Practitioner was very thorough with her exam. The office staff were professional.read more

Dr Poopat is awesome! Great doctor and a wonderful person. He always does his best to make you feel…read morebetter.

After 2 separate doctors telling me I had allergies, I decided to go to an actual allergist. Dr…read moreGibbs listened to my concerns and spent a lot of time discussing my situation and possible causes. Staff were incredibly kind and helpful. Wait time was quick and I felt extremely comfortable. Will be back next month to follow up and discuss progress. Highly recommend this group

I had a really great experience during my allergy testing here. The doctor took the time to really…read morelisten to the symptoms I was having and discuss alternatives to explore when my results came back. I appreciated that he took the time to really explore everything with me. Everyone was very nice and made things comfortable and easy. I would recommend this office to anyone.