Apparently the office will cancel your appt on "accident" without notifying you at all and pretend…read morethat you were the one to call in.... They literally do not take accountability and it shows. They dont faxed orders for imaging when they say they do and when you call them out they just dont care about your time....dr wont respond back to your messages. Save yourself and find another ENT doctor that is more professional and honor your time.

I've been going to United Gastroenterologists for over 20 years for Colonoscopies and Endoscopies…read more Dr. Stanton is one of the finest Gastroenterologists anywhere. Their team of PE's, nurses, orderlies, and administrators are the best too. They are so professional and through, but also human, keeping their sense of humor through what can be a tense environment. Thanks to all this team does! Here's to another 20 years!

I had my initial consultation with Dr. Hardeep Singh about a week ago and was incredibly impressed…read moreby his excellent bedside manner and utmost professionalism. The front office made the entire process incredibly seamless, and I was able to secure an appointment within just one week. They provided crystal-clear instructions for my colonoscopy prep, which I completed the day prior. The procedure itself took place at a convenient facility just down the street. Although they were quite busy on the day of my procedure, resulting in a slightly longer visit, the efficiency, care, and dedication of the entire team were outstanding. They are a highly professional and compassionate group, and I highly recommend them. Thank you so much to Dr. Singh and his wonderful staff!

Dr. Singh is very professional, thorough and made me feel very comfortable for my procedure.read more

I had a colonoscopy and told my new doctor, Kavita Singh, that I was concerned about the severse…read morestomach cramps I had from the excess air left in my body, frrom the previous doctor's colonoscopy. Kavita Singh was awesome - I had no stomach cramps whatsoever from her doing my procedure - she listened to me and removed all of the excess air. It was the best experience I could have asked for with Dr. Singh. I would highly recommend her to anyone needing this procedure.

Dr. Riff is an excellent physician with outstanding bedside manner. I've been a patient since 2020…read moreand have always trusted and appreciated the care I've received from him. Unfortunately, my recent experience with the office's a staff from their billing department was extremely frustrating and unacceptable. I was blindsided by a past-due bill after two years with no prior notice. When I called to make a payment and understand the delay, I was told that multiple statements had been mailed and voicemails left--none of which I ever received. What was most concerning was the conduct of the billing representative.( I have the name but, not mentioning here) When I calmly asked for an explanation as to why I was being notified after such a long delay, she became defensive, raised her voice, and spoke to me in a disrespectful and aggressive manner. She even threatened to send the account to collections--despite the fact that no such action had been taken during the past two years while the balance was apparently outstanding. This kind of behavior is completely inappropriate and unacceptable, especially in a healthcare setting. When I questioned her tone, the situation escalated further. I was eventually transferred to a supervisor, who took my payment and presented herself professionally; however, the explanation provided still did not justify the delayed billing or the way the situation was handled. While I hold Dr. Riff in very high regard, this experience with this associate with the billing department has severely impacted my overall trust in the practice. No patient should be treated this way. Unfortunately, this has led me to seriously reconsider continuing my care here.

she's always very professional and informactive about my results. and she clearly answers all of my…read morequestions

Same problem as another review; it is impossible to schedule an appointment. Calling their phone…read morenumber directs you to the front desk who takes down your name, phone number and tells you they will forward to scheduling department. I called 3 times the past 2 weeks, no call backs. Not sure what's going on, but it would be nice to actually get a call back

Anyone planning to use Dr. Lee for a procedure should be aware of the high-pressure tactics that…read morehis office uses in scheduling appointments. Also be aware that he will charge you $200 if you reschedule an appointment less than 5 BUSINESS DAYS from the scheduled time. Finally, be aware that his office closes at NOON on Fridays. I called his office at 2:30 PM on a Friday, trying to reschedule an appointment that I had for the following Friday. I was forced to pay a $200 penalty because I didn't know that his office closed at noon on Friday. Who runs a business like that? Also, these hours were never printed on any of the paperwork that I was given. I asked my primary care physician for a different referral, and managed to find an office that has normal office hours and doesn't levy ridiculous penalties.

Office staff is absolutely the worst I've experienced. No response to calls, won't answer my…read morecalls, my authorization for life saving medication is constantly lapsing because they do not follow up with the insurance when they reach out. Once I'm back in open enrollment, will definitely be looking for a new doctor.

I write this review with immense gratitude for dr. Patel. After being very sick for several months…read moremy symptoms became increasingly worse and debilitating. Not knowing where to turn or whom to trust, thankfully a dear friend referred me to Dr. Patel. During my first appointment, Dr. Patel listened carefully to my concerns and understood that I was not only in severe pain but also nervous about being in a doctor's office. She quickly put me at rest with her compassionate and positive bedside manner. After her very thorough examination, she scheduled multiple tests. These tests identified serious but treatable GI issues, a hormonal imbalance, and a large ulcer that I was completely unaware of. Within a short time after starting treatment I was a newer better version of myself. Now, months later, I continue to improve and truly appreciate Dr. Patel for her incredible ability and willingness to address my medical issues.

After suffering with a very difficult bout of IBS for 10 weeks and not getting answers or help from…read moretwo doctors, I found Dr. Patel, who gave me LOTs of HOPE, along with important information re: my health problems, meds and supplements. She understood how exhausted I was and showed me warm caring as well, which I appreciated! The endoscopy she suggested went very smoothly, with her by my side to answer my questions, beforehand and afterwards. Since my two visits, I've called her office with questions to her medical assistant, Precious, and I received answers from Dr. Patel within a day as well as a personal reply from her via email. Though she is listed here with a Tustin, CA office, she has a Mission Viejo office as well--it's very convenient for me!

5 Stars I've been a patient at Digestive Disease Consultants…read moreof Orange County for many years and have always received excellent care. Recently, I had a health emergency and needed a prompt appointment and procedure. The team scheduled and completed everything within 24 hours -- truly impressive! Dr. David Choi was warm, funny, professional, and made me feel completely at ease during a very stressful time. The entire staff is courteous, prompt, and highly professional. I highly recommend this practice and Dr. Choi to anyone seeking top-quality gastroenterology care. Thank you, Dr. Choi and the DDC team!

I would warn patients about coming here. You never get to talk to a doctor only PAs. Last time I…read morewas here they said they needed to order a test and send to me. I got an email the following day saying it was order then I came in to do a follow and said I never received it and they said oops looks like we forgot. Please go somewhere else. This is a numbers game for them to see as many patients as possible. They don't care about people

Since becoming a somewhat new patient of Dr. Hwang, I just completed my medical procedures with…read moreher. She's an amazing person and doctor! My abdominal pain has subsided dramatically less, and I feel better. I receive great medical care, and I love her friendly staff in the office. Sanitized and clean....just the way medical offices should be. My overall experience has been a positive one. You want an outstanding GI doctor, Dr. Caroline Hwang is it!

I went to Dr Hwang for two procedures, a colonoscopy and a sigmoidoscopy. The first time I went to…read moreNewport Beach, the second time to Irvine. Both centers were very efficient and the care I received was excellent. Dr. Hwang was cordial, and I trusted her completely. Why go anywhere else? I would recommend her to anyone that needs help in Dr. Hwang's field.

Dr. Mortensen helped me a lot with my health over the years. After years of debilitating pain and…read moresuffering he uncovered the root of my ailment and helped me on my journey to achieving optimal health.

I started seeing Dr. Craig Mortenson around November of 2024. I was having all kinds of weird…read moresymptoms and my body was all out of wack. My blood pressure and cholesterol was up, my hormones were down, and I was having weird panic attacks that I've never had before. After trying a few things that made me feel better but not great, my test results came back as having leaky gut in March of 2025. He asked me to get on a strict protein diet and gave me a few supplements, after about 3 months I was feeling better but still had to maintain my diet and supplements and now at month 5 I'm feeling great again and all my tests are stable. When my primary physicians only prescribed me medication to mask the symptoms Dr. Mortenson dug deep to find out what was causing these issues. I am still on the journey of healing my gut and stabilizing my gut bacteria but I can honestly say I feel much better and almost back to normal. I will never regret making the decision to call Dr. Mortensons office and don't even know how I would function if I just gave in and took the meds my primary was giving me and thought that was all that could be done. This team is amazing and you should never just settle with your health!

Is there a trick to getting through to this office?I've left 2 messages and have not heard back…read morefrom anyone. Saw Dr Ashby backs in 2020 and really liked him. I planned on returning, but doesn't look like it's in the cards for me. I can't get a hold of anyone at the office!

Good luck trying to schedule an appt. Nobody answers the phone here. Called 3 different times…read moreduring biz hours.