The office staff, particularly whoever handles scheduling, does not seem to be organized or…read morecommunicate well. On one occasion, I received multiple phone calls in the same day asking why I had scheduled an appointment before my ultrasound was completed. I repeatedly explained that the appointment was to discuss the results of a previous ultrasound, which had already been completed and was in my chart. Despite explaining this several times, they continued to question me. The final issue that led me to cancel my care was when I was scheduled for an endoscopy. No one contacted me beforehand to explain what my out-of-pocket cost would be. Since my procedure was the next day, I called the office because I didn't want to be surprised by a large bill. I spoke with Maggie, and the interaction was extremely disappointing. Rather than listening to my concerns, she repeatedly talked over me while I was simply trying to understand why the office couldn't provide an estimate after obtaining the insurance authorization. It felt like the office was focused on getting paid by the insurance company but not on making sure patients understood their financial responsibility ahead of time. Instead of helping, Maggie told me to call my insurance company or the surgery center myself. I explained that I didn't understand why I had to make multiple phone calls when the procedure had been scheduled through their office. Even after I politely asked her to let me finish speaking, she continued interrupting me and eventually hung up on me. I have worked in customer service for many years, and throughout the conversation I remained respectful. There was nothing that justified ending the call that way. As a result of this experience, I canceled my procedure and will be finding another gastroenterologist. The physician may be excellent, but the office staff's communication, professionalism, and customer service need significant improvement. Based on my experience, I cannot recommend this practice.

Dr. Kara was so kind and insightful--she really listened and made me feel cared for. Staff was…read morefriendly and office was clean and tidy.

I highly recommend Dr. Abdelkarim. He is incredibly patient, thorough, and truly cares about his…read morepatients. He stayed committed to my care and continued working with me until my stomach issues were finally resolved. You never feel rushed or like just another patient--he listens, takes your concerns seriously, and treats you like family. I'm so grateful for the level of care and attention I received and would absolutely recommend him to anyone looking for a knowledgeable and compassionate gastroenterologist.

It's was my first time there on July 17, 2025 I'm praying that my experience here will be pleasant,…read morepositive and healing. I'm scheduled for a colonoscopy- I was told that the soonest they could get me in for the procedure is August 21, 2025 I have called to ask for something sooner but his scheduler said nothing sooner and if pain persists go to the hospital. Honestly this was very unsettling. I had blood work done she also stated that the PA signed off on it so if something was alarming I would have gotten a phone call- this is neither reassurance. Initially to get in with the doctor I called for 5 days looking for a cancellation as recommended by the staff to be seen sooner (no success) some of these reviews are scary . Document Everything. I was also granted a referral for the Doctor but I seen the PA . I'm not sure what the protocol is.

Highly Recommend. This is for the Rancho Cucsy oamonga location. I have been receiving care here…read morefor about 4-5 months now. Receiving care related to GI problems resulting from my cancer treatments. Dr. Dam is my physician. Strongly recommend. Location is great, staff is supportive, wait time is perfect, and many great things can be said about Dr. Dam. Approachable and so easy to talk to, attentive, and actually knows who you are and remembers your individual situation each visit. What I most appreciate most is he is very supportive and their follow-throughs. I also get call backs notifying me that "so & so referral has been approved" so I can reach out to schedule appointment.

Very unhelpful. Refill requests take more than a week and still not processed. The staff is curt,…read moredismissive, and prone to providing inaccurate information. Would not recommend unless you don't mind suffering while waiting forever for the prescriptions you need to get authorized. Other Yelp reviews suggest that unprofessional staff behavior is a recurring issue.

I really appreciate Dr Tieng. She takes time to listen. She seems very down to earth and is easy…read moreto talk to. For years I have had stomach issues. No doctor ever told me why I had constant pain and bloated. I was just repeatedly given heartburn medication and nothing helped. Dr Tieng tested me for SIBO immediately and it was positive. My insurance didn't cover the antibiotics but she kindly provided samples. My stomach immediately felt better! God know how long I had been dealing with that. I like that I can email her office and get a responseand that she follows up w a staff call to see how I'm doing. I have never had any issues w the office staff. They have all been kind and prompt. While I'm still having some stomach issues I am happy to have found this Dr. Update:. Another 5 stars. I left me meds when out of town and her staff Tabitha, met me near my work to provide me samples so I can finish my course of antibiotics. She did not need to do that and went above and beyond the call of duty. On another note I really appreciate that Dr Tieng has staff who look at emails and offer to email lab orders by email. Saves so much time. Thank you!

Find someone else. Ms Tieng is the rudest, most vile doctor…read moreI've ever had the displeasure of "doing business with". She was almost 3 hrs LATE for my appt, no acknowledgement or apology. No call to let the staff know. Just left the patients sitting buck naked in a gown, on a gurney for hours. When I expressed my displeasure she didn't give a rat's patootie and told them to knock me out for the procedure. I would happily tell ms tieng to go jump a rope. Hope you trip. I've recommended to my physician to never utilize ms tieng's services. My Dr notated that this was not her first complaint regarding ms tieng. Date of service 10/2025

Dr.Shakfeh was great. He explains everything with ease. His staff was welcoming and friendly.read more

I recently had a colonoscopy performed by Dr. Mohammad J. Shakfeh at Montclair Hospital, and I…read morecouldn't be more grateful for his care. He is an exceptionally gentle, careful, and human doctor. From the very first moment, he makes you feel like you are in good hands. What I value the most is that he stays attentive throughout the entire process, providing warm care that truly makes a difference. I highly recommend him for his professionalism and his kind bedside manner.

Dr. Salaimani is a wonderful Dr.. after my second endoscopy he called and explained the results and…read morethe treatment plan. After that, I had an ultrasound of my liver and found an issue so I made an appointment. Unfortunately I was seen by a nurse practitioner who launched into the results from a while ago that I already talked to the dr. about. I stopped he and told her that I was there for a different issue. She said that she wanted to go over the results from tests done months ago and would get to the liver issue later. Update: No one answers the phone down there and instead an "AI" assistant answers but offers no help. My appointment with the dr has been scheduled 5 months out. The Dr is great- his support staff, including the snotty NP, is not helpful or caring.

Dr solaimani is kind and seems genuinely concerned and interested in helping you however , his…read moreoffice staff , computer system and portal are incompetent. There is no follow through . No one takes responsibility for the total care of the patient here . The office staff controlled solve, the portal doesn't contain results or provide easy assess to enter information regarding history ,medications etc At My first visit ,Dr Solaimani ordered labs and other tests unbeknownst to me. The office staff scheduled an appointment for me to follow up with the doctor two months after the first appointment for which I had to pay a $70 co-pay and my insurance was billed several hundred dollars. When I got there, they told me I hadn't done the labs the Dr had ordered. I inquired as to why I wasn't notified of the labs at the first visit , there answer was " well we must've had a student who put you in the room and she didn't enter your specific lab you use into the computer " . When I ask about why there was no follow-through on this why no one called me to inquire about why I hadn't had the labs before my appointment, they said oh we don't do that. We don't have any way to know about that. They kept referring to possibly a student that made mistakes the last time I was there. No one wanted to take accountability and they couldn't explain the process of how these things are normally done. It sounds like computers run this office, not thinking responsible people. The nurse practitioner I saw (when I had scheduled an appointment with the Dr) spent only 6 minutes with me informing me "all the results of my previous colonoscopy was normal) something the Dr told me after the procedure. Then ushered me out to schedule another appointment in two months after I complete the labs they had "previously ordered. When I ask about why I didn't see the doctor at this visit, as previously scheduled I was told "oh you have to tell us when you come in so we can put you in the right room to see the Dr." "We don't know who your appointment is with!" This office needs an overhaul from the top down! I feel they just want to schedule expensive procedures such as colonoscopies and EGD's , bill your insurance then dismiss you after they have completed these .I will not return!

Dr. Lah was very professional and brutally honest. His staff handled the appointment and transfer…read moreof medical records in a timely manner.

I want to make an appointment for my mother, the signal may be bad for the first time.and I tried…read moreseveral more later, the operator didn't answer directly. Doesn't she know how dangerous this is for the patient,very Irresponsible

Took my mother in this morning for her first appointment with Dr. Hung, and we had a wonderful…read moreexperience. From the moment we walked in, we were warmly greeted and treated with kindness by the two front desk staff members. Dr. Hung and his assistant were equally kind and professional. He took the time to truly listen to our concerns, thoroughly explained my mother's condition, and provided clear guidance on the next steps moving forward. Overall, the entire team delivered exceptional customer service, and we truly appreciated the care and attention we received.

Worst bedside manner. RUDE AND DISMISSIVE. Saw him once and never went back. Went to a REAL…read moregastroenterologist who actually listened to me. Couldn't be happier!

With a history of colon cancer in my family, this was my fourth colonoscopy--and honestly, it was…read morethe most comfortable experience I've had. Dr. Moe and his staff were great. The Glenwood Surgery Center in Riverside was super clean, and everyone there was really friendly and made the whole thing easy. They told me I might be there a few hours, but everything moved pretty quickly and I was out sooner than expected. The whole process just felt smooth from start to finish. I did my homework ahead of time and saw all the good reviews for Dr. Moe--now I get it. Definitely recommend Dr. Moe and the team at Glenwood.

I had a great experience from start to finish. The entire staff was kind, welcoming, and…read moreprofessional, and they made me feel comfortable throughout the whole process. The doctor was excellent--friendly, knowledgeable, and took great care of me. Everything was well organized, and the experience went much smoother than I expected. I'm very grateful to everyone there and would definitely recommend this office to others.

I came here for a procedure in late July, and very pleased with my experience. The location is…read moreclean, organized, and the nurses are very kind and attentive. The anesthesiologist made me feel less nervous, and the doctor, well I don't remember much cause I got some good sleep after saying hi to him lol. All in all, it was a good experience in a nerve wracking moment.

Yesterday I had a Colonoscopy. My only complaint is why do we have to be there 2 hours before we…read moreare called to the back. Makes no sense! Overall the staff and Dr. K. Are Awesome. Very caring and exceptional ‍