Dr. Sajen Mathews is the BEST Gastroenterologist I have ever met!! You need a doctor like him:…read morepersonable, thorough, knowledgeable, and of course, highly experienced!!!! He has diagnosed and treated many of my family members, too. Dr. Mathews is in such high demand and it seriously took me 2.5 months to secure an appointment with him!!! Worth the wait and I am beyond grateful for his expertise!! He might be able to see you sooner if it's a serious life threatening issue, but best to call his office and inquire.

Last time I checked doctors need to physically exam patients in order to properly diagnosis. So you…read morecan imagine my surprise that Dr. Matthews isn't seeing patients and will only do phone calls. I've currently been on hold for 15minutes!! Oh and did I say they NEVER called to share test results done over a month ago. Let me save you time and energy, don't pick Dr. Matthews. Well at this point don't pick St.Judes

Excellent experience from start to finish. The doctor thoroughly reviewed all the preparation steps…read morebefore the procedure and made sure I knew exactly what to expect. The staff was friendly, professional, and made me feel comfortable throughout the visit. Everything was well organized, and I received outstanding care. Highly recommend!

I recently went to see Dr. Yoo for a colonoscopy. I found him through my insurance company website…read moreand saw that he was located nearby in Rowland Heights. When I called to make my appointment, I found out that Dr. Yoo moved his practice to a new building in Diamond Bar as of March 2024. Dr. Yoo's new office is located in the newly renovated Diamond Bar Medical Plaza, which was previously a Chuck E. Cheese (if you all were in the area when that was around). Looks like they are still in construction, as a couple offices are still vacant with plastic on the glass windows. The staff I encountered all very friendly and nice. Dr. Yoo was professional and clearly explained the process and indicated what I needed to do to prep for my procedure. I came in on a Monday and the front staff was able to fit me into an appointment on Thursday due to a last minute cancellation. This kind of procedure is not fun, but the entire staff made me feel comfortable the entire time, and the nurse who attended to me was so nice, I felt like my mom was taking care of me. =) She made sure I had extra blankets because I was cold and came by a couple times to made sure my IV was ok. I got a call the day after to follow up and see how I was feeling and if I was experiencing any issues. I appreciate the check in even though I was feeling good! I highly recommend Dr. Yoo if you need an gastroenterologist.

I can't say enough good things about my experience at AGMG Endoscopy Center! The support staff is…read morefriendly and efficient. They even filled out my drug and medication form for me when I thought I could get by with just attaching the long list of meds I take. The doctor who performed the procedure was friendly and attentive, explaining every step of what he would be doing for me. The anesthesiologist also explained everything I could expect before, during and after the procedure. The very best part of the process was having Cindy taking care of me for the post procedure follow up. The world needs more people like Cindy!!

Brought a family member here for a procedure and had a great experience overall. Naina at the front…read moredesk was so great at communicating every detail we needed to know beforehand. And nurse Diane was so helpful and communicative post procedure as well. My loved one felt in good hands and received great care at this facility. It's an older building but very clean and the staff are efficient. 5/5 for professionalism and bedside manner from all the staff. Thanks!

This review is for Dr. Mankal who works out of the same office. My elderly father was diagnosed…read morewith advanced Liver issues after he contracted Covid 19 in 2020. The liver doctor at hospital gave him a year to live. After he was released we were traveling to a doctor in San Gabriel which was quite a distance since my parents live in Lakewood, Ca. After searching the internet I came across Dr. Mankal in Los Alamitos and when I say he has been an absolute God send, I mean it!!!! While my father's condition is not without its issues, Dr. Mankal has been amazing. His bedside manner is incredible, he is patient and extremely knowledgeable and best of all my father is still with us, 4 years after the liver doctor at the hospital wrote him off. I also love the portal and usually get answers to questions or requests for meds within 24 hours. I hesitate to post this review because I worry Dr. Mankal will be swamped with new patients but then I think of others facing these types of challenges and needing quality care and feel compelled to share. We also love Angela, his front office lady, she is wonderful as well! I strongly recommend Dr, Mankal and Angela!!!!!

This office is super responsive, so I'm surprised to see reviews about delays in responsiveness or…read morescheduling appointments. New Patient Process I called the office to ask about their new patient process, and they helpfully walked me through the process and directed me to their online forms. After filling out the online forms and submitting them via email, I was able to call the office and have someone on the phone to help with questions. Super nice and patient staff members! They also responded to my patient forms same-day, and my first appointment was scheduled within a week. Appointments The patient portal and ability to use televisits is really convenient. I am not a tech-savvy person, and I was able to setup my account online, pay online, and virtually meet Dr. Mankal in a televisit. Patient Care Dr. Mankal listened to all my concerns and was able to describe what was happening in a way I could easily understand. He prescribed clear directions for next steps, and a prognosis. I really appreciated how clear and attentive he was.

It's been five years since I first came here, and I'm still frustrated with the practice. I…read moreabsolutely *love* Dr. Trivedi, who also works at this office, and I've asked to become his patient twice over the past five years. I had the chance to see Dr. Trivedi once when Dr. H was unavailable, and I was so impressed by his bedside manner that I requested to switch to him as my gastroenterologist. However, my request was denied after Dr. H's input citing that patients can't switch doctors within the practice. Their secretary staff are at least quick to comply with sending over medical records to my new gastroenterologist or other doctor's that may need my medical summary history performed by Dr. H. If you have the option, I highly recommend seeing Dr. Trivedi. My mother sees him, and two other doctors I know absolutely adore him as well. It's just unfortunate that I'm not allowed to be one of his patients!

I've been going to Dr. Hertz for years and she is awesome. Today I saw her PA Katherine Dodds and…read moreshe is amazing as well. She gave me all the time to go over questions and details of my care. I just felt she needed a shout out for excellent bedside manner. Don't be afraid to try this office for your GI care.

Dr. Ana Marilla is my primary care doctor here at this office. I love everything about her! I did…read morenot know how to appreciate a good doctor until I met her. Dr. Aeri Kang used to be my primary and she's in the same office, but I didn't like how she wasn't personal. I know that doctors don't like to be personal but it's nice to hear a sincere "How are you?" sometimes. I always felt rushed out of there and I didn't feel comfortable telling her anything. She pushes pills and I didn't like that. I also wanted to know my options for birth control but she didn't care to explain. It's like I had no choice but to just take pills. Now, that I'm under the care of Dr. Marilla I'm so much more happier when I go to the doctor! She's thorough and doesn't go through the motions! She genuinely cares about her patients and I love that! She takes the time to explain illness and treatments and medications that she's giving you. And I finally I know about all the different birth control options. Super plus points! She's an absolutely fabulous doctor to have! You won't regret it!

When you have a workers comp injury from your employer nearby, chances are, you will come here…read more Upon arrival, 3 people in front of us in line had the same injury slip. You will need to check, do paper work and wait until they call you like any other doctors office. However, waiting here is unusually long compared to other doctor´s offices. 30 minutes after paperwork, you will enter and a nurse will take your vitals and you will wait another 30 minutes for the doctor to come. The room is small and cold will and will only have 1 seat. If you need additional screening like X-Ray, you will continue to wait. We waited almost another 60 minutes just for someone to check on us. Long story short, almost 4 hours here for something that shouldn´t take more than an hour. But what was really upsetting was making the appointment for the return visit. According to the lady in the front, there was only 1 choice in time. And that time is during working hours. Most of the time when you make return appointments, there would be at least choices right? Not so here.

First of all I have to start by saying how lovely the surgery center is. The waiting room looks…read morelike it's fresh out of a decor magazine. Everything is very new with a cozy modern feel to it. Well done! Upon check-in I was greeted by a lovely lady with dark curly hair, what a sweet receptionist. As I was checked into the pre-op I was taken care of another lovely lady named Lacey. Lacey was the sweetest nurse, really comforting and professional at the same time. Thanks Lacey for pulling for me!! God bless us mamas and our mamas.. And Jane oh dear Jane, my soul sister! Dear God bless your smart-&$$! You are such a light in this world. In the least weirdest-creeper way possible I LOVE YOU! You made me laugh and almost pee myself! You singlehandedly made me want to stay just so I could crack sarcastic jokes and laugh the day away! Then to follow up days later after I was waaay out of your sights, a true sister! You are a true asset to this company and anywhere you go! I'll be seeing you again, if not in this life then another;) thank you to all the surgery staff thank you Dr Do for my BEAUTIFUL FOOT!!

Dr Kholi performed a procedure on a kidney stone today. He is excellent. Everyone I had contact…read morewith from the office, to the nurses and techs were so caring and kind.