Dr. Chang was beyond amazing. In our first consultation he pinpointed several solutions to my wife's issues which other experts had no glue what to do. These were life changing He is a very compassionate, caring, professional and extremely talented doctor and amazing person. He is one in a million.God bless him and look over him.

Dr. Chang is an outstanding physician. I visited two other doctors prior to seeing him, neither of whom was able to remove a duodenal polyp located in a site that was delicate and difficult to access. Dr. Chang, however, had great skill and experience and was able to successfully remove the polyp. He also showed me multiple photographs confirming the complete removal.When I was first referred to Dr. Chang, I heard about his stellar reputation and the fact that he's world-renowned in his specialty. In fact, during one of my visits to Dr. Chang, a doctor who was assisting Dr. Chang told me that he came all the way from Japan to learn from him.I have now experienced first-hand why Dr. Chang is so revered by everyone. He is all that you could wish for in a physician: warm, compassionate, caring, skillful, and brilliant. He always makes me feel at ease, he takes the time to answer all of my questions, and everything that he says makes a lot of sense. Please don't hesitate to be treated by such an amazing doctor!

Dr. Chang and his team are truly amazing. I've been a patient with Dr. Chang since 2017. I live in Northern California and buy a flight for a day visit to Orange county just to see Dr. Chang and his staff. If you want only the best... Dr. Chang and his staff of fellows, plus admin like Nikki and Jasenia are the team you want on your side.

Dr Kenneth Chang is truly an expert of gastroenterology and upper GI surgery. He is personable, takes his time, provides extensive information in his responses - such a pro. Worth traveling a few hours to see him and get expert diagnostics. Wifey had Stretta and it cured her reflux 100% - like magic! The facility is otherwise modern, nice waiting room, highly trained staff - couldn't get any better!

It's hard to believe until today, there is someone called COVID-19 Wuhan Virus... absolutely not recommend.

I have never seen or heard of a nurse like Dr. Kenneth Chang's, who doesn't care about patients at all and is so rude. I made my first phone call to Dr. Chang's office to make an appointment to see Dr. Chang early Feburary when I was suffering severe stomach pain. The nurse scheduled my appointment to Mid of May with such a bad attitude. And today after I have been struggling and expecting to see Dr. Chang for 3 months, she called me to move my appointment to end of July with even worse attitude

I have never seen or heard of a nurse like Dr. Kenneth Chang's, who doesn't care about patients at all and is so rude. I made my first phone call to Dr. Chang's office to make an appointment to see Dr. Chang early Feburary when I was suffering severe stomach pain and struggling whole lot. The nurse scheduled my appointment to Mid of May with such a bad attitude. And today after I have been expecting to see Dr. Chang for 3 months, she called me to move my appointment to end of July with even worse attitude. This is definitely not right!!!!!!!!

Great provider. Listens and answers your questions. Doesn't make you feel rushed.

Dr Chang has an amazing bedside manner…..he educated me on my diagnosis and helped me to make the best decision ……I would highly recommend him!

He was great very informative and professional