I was a patient of Dr. Huang between June and October 2025. He was always very professional,…read morepatient in answering all my questions, and thorough in his explanations. He was also very understanding and helpful in scheduling all the procedures I needed to better understand my GI condition. Dr. Huang consistently responded quickly to my messages and always made me feel that I was in good hands under his care.

HORRIBLE doctor who does not care about his patients. He is a clear example of a specialist who…read moredoes not want to do anything for his patients and tries to kick off responsibilities to other teams even though he is assigned to treat my problem and specializes in the issue. While some people seem to have positive experiences with him, it seems that he reserves his professionalism for certain people and not others. Beware. He is unwilling to spend 5 minutes doing something that could change somebody's life for the better. I am undergoing treatment with him and other specialists for why I keep on losing my voice for weeks at a time. I simply needed accommodations for my hoarse voice and LOSING my voice for significant periods of time. This has significantly impacted my ability to participate in class. My voice is GONE. It can come back one day and be completely gone the next day. It is very normal to seek academic accommodations for a loss of voice. For example, if you are taking a language class, sometimes you need to push out your deadlines for presenting if you literally don't have a voice. My school does this through the disabled students department. And currently, consistently losing my voice has become a disability because I literally can't talk and complete some of my assignments. Many teachers ONLY accept accommodations through the disabled students program: informal requests are often denied. He is the first doctor I have ever met who has refused to provide any kind of letter simply asking for accommodations surrounding a lost voice--e.g. something as simple as "this student needs to have flexible deadlines as they often lose their voice. Currently I am not clear on what the diagnosis is, but I request flexibility for their voice loss. Their loss of voice affects them to effectively participate verbally in class, so deadlines may need to be pushed until they regain their voice." Instead, he sent a very rude and low-effort email saying that he is unwilling to write me an accommodations letter simply because he doesn't know what my issue is and disagrees with the other specialist. This is unacceptable. For example, let's say somebody has some other terrible, similarly disabling disease. It might take a couple of months for the specialists to agree on a diagnosis, but they could still be suffering and their ability to participate in society, work, school, etc. is completely affected. They should get accommodations. I'm getting diagnoses or medical opinions thrown at me left and right. Even if different doctors have different opinions, ultimately, one thing remains the same: I have lost my voice for almost 20 days in one month and continue to be hoarse or lose it altogether some days. Other people had recommended this doctor to me. I had high hopes. I have never encountered such an irresponsible, uncaring, and callous doctor before. I don't doubt that he is probably academically brilliant. I just think that he doesn't realize that taking 5-10 minutes out of his day to fill out a form could change someone's life for the better. Even more malicious: perhaps he does, and chooses not to because as a specialist, he is above this kind of work.

Dr. Marcus was referred to me by another doctor in my town. I made a phone call and had a zoom…read moreappointment all in the same day. Within one day we had decided the best game plan and I have an appointment in one week. I will update my review after my procedure. I felt the need to post a review in my shock of great service. He's not only professional but he is also quick, personable and obviously knows his business well. Super secure feeling here and so happy. Update They have made everything so wonderful.

Good doctor but dishonest billing processes. I am being charged monthly for the past two months for…read moremy portion even though I have already paid the amount on the receipt of the 1st bill itself! Also, hard to get anyone to respond over the phone. No one picks up and no one gets back later The colonoscopy went very well and hence the 4 star review

My mom has been seeing Dr. George Yeh for decades. His office is on Winchester near Steven Creek…read moreBlvd. They have a small parking lot and there is street parking if needed. The waiting room is adequate. The two office workers are helpful and nice. One remembers my mom fondly. Dr. Yeh is very professional and caring and provides the best medical care he can for his patients.

I am extremely disappointed with the customer service I received from this office…read more On June 3, 2026, I called to schedule an appointment. The representative who answered the phone refused to provide her name and disconnected the call. I called back four separate times, including requesting to speak with a manager, and each time the representative hung up on me. At no point was I given the opportunity to ask basic questions about the practice, such as its location or whether it accepts Medicare. I remained courteous and professional throughout every interaction. During my final call, I asked the representative why she had repeatedly hung up on me. Her exact response was: "I thought you were a robot, and I can hang up on you again." This behavior was unprofessional, disrespectful, and completely unacceptable. Patients should be treated with courtesy and respect when seeking medical care. Based on this experience, I would not recommend this office to others, and I intend to file a formal grievance regarding the treatment I received.

I've had just the best experience with this office. The staff was friendly and supportive, the…read moreDoctor very polite. The colonoscopy was done with no any questions. I definitely recommend Doctor Levit. 5 stars.

Dr. Levitt literally saved my health with his thoroughness and quick action.I went to Dr. Levitt…read morefor a colonoscopy, and he attentive enough to spot a lesion near my colon. He immediately coordinated all necessary imaging, including an MRI, and referred me for surgery. Thanks to his prompt action and seamless coordination, my surgery went smoothly, and I am currently recovering very well. Dr. Levitt's dedication and quick response made all the difference. I am deeply grateful and highly recommend him!

I was so impressed by Dr. Daniel Tse and his team. He was very thorough with everything about my…read morehealth and asking questions and writing things down. He is a very kind person with passion for his work. It truly made my day after having started a Monday with this kind of amazing care. What a pleasant surprise compared to my last PCP. It was my first time seeing him for a general checkup. Excellence is what I think of their entire team, Alicia, Vanessa, and Michelle! Thank you for your service and kindness. All of them had great bedside manners! Wonderful, wonderful people!

really appreciate his attitude and patience, esp towards older adults. His staff are also nice…read morewhenever we called over phone or met in person

It was that time again to schedule my colonoscopy. I chose Dr. Nguyen based on review of others…read more I have to agree that she's a very caring and understanding doctor who carefully guides you through the process. It's been 10 years since my last one, so it was a distant blur. Her facility is very modern. The surgery center (National Ambulatory), next door, is just as nice. On the day of the test, the people were extremely pleasant and informative. Walked me through all the steps and what to expect. The anesthesiologist reminded me of a slender version of Dwayne "the rock" Johnson. :D Very nice guy. Dr. Nguyen showed up on time and assured me that all will go well. Once I woke up from the exam, it was like I took a short nap. All good and ready to go home. It was a very smooth process and I would highly recommend Dr. Nguyen and her team!

I love Dr. Nguyen! I've been seeing her for 2 years and she's always cheerful, warm and…read moreprofessional, treats you with kindness and care, and is very patient and responsive to every concern I have. I was very nervous about my first colonoscopy and she was very reassuring, and the process was very smooth. I highly recommend Dr. Nguyen and her team!

First time at this location. The nurse took notes before the doctor came in and they both seemed to…read morework well together. The doctor explained things without making it complicated. Didn't rush me and listened to what I had to say. It felt professional and calm.

I was having some real issues with my stomach and other areas and couldn't figure out for anything…read morewhat was going on. I literally went to 5 different doctors before I found Dr. Ahn and not one of them believed me about my issues or even cared of the pain I was in constantly. When I did finally meet with Dr. Ahn, he sat there and listened to my problems and did every test necessary to figure out what could be wrong. Every time I had an issue or concern, he always called me back and addressed my problem. He was very sweet and made sure I knew he would try his best to take care of anything. Eventually, after about a year and a half, things have gotten better and I don't deal with the pain anymore, although I still have some issues but they are far better than they were 2 years ago. I no longer see Dr. Ahn but do remember what a great doctor he was.

I have been a Patient of Dr. Bhargava since 2023. I had intense acid reflux issues and need an…read moreendoscopy. Dr. Bhargava is thoroughly professional, friendly and extremely smart. I had a clean endoscopy. Recently in May 2026, I underwent a repeat endoscopy and a Colonoscopy at the sametime. The staff at the National Ambulatory and Surgery center are among the best. While I am glad all my scans are clear, I am so glad I am under the care of this fantastic doctor Dr. Bhargava Gannavarapu. I had such a smooth experince, the appointments are quick and easy and Dr. Bhargava is such a pleasure to talk to.

I have never met a doctor that I absolutely loved and appreciated…read more In May, I was having very bad symptoms of abdominal pain and all the nearest GI were booked out 3 months and I wouldn't be able to get seen. I was super concerned because I had abnormal weight loss and I was scared that I had an underlying conditions and Dr. G's office was able to see me within a week. I took a chance and decided to go to get seen. From scheduling and to be seen, this office has the most professionalism I've ever seen and I'm so glad I went here. First Appointment: Dr. G assessed me and did all the tests that he thinks was needed to diagnose me and was able to do one of my exams that week since a patient cancelled. Follow Up with NP (Anne): She discussed my results and ordered additional scans. I also asked for a test for peace of mind and she ordered it without any questions and understood my concerns. Procedures: I was fully prepared and had multiple calls and texts to remind me of my appointment and any pre care I needed to do before my exams. I am so happy with Dr. G, Anne, and the office staff because they were thorough with their examinations and ordered full scans to ensure what is needed for my diagnosis. I had so many questions and they understood my concerns and were always so timely with everything such as appointments and fast response times. I want to thank the office staff, Dr. G and Anne for all of their assistance and being such an amazing team.