Dr. Mark William Daniels, MD

I am very disappointed after contacting his office to book an appointment for my son, we desperately need a second opinion due to a serious condition and his office said clearly "we can't schedule an appointment because we don't do second opinions" , that is very disappointing as in this case this condition is impacting my son's quality of life. My son's current doctor is with UCI as well and we were referred as he was one of the best but I guess we will never know. His staff should learn how to be more professional and polite .

Dr. Daniels is a fantastic doctor and one you definitely want on your team. Two of my children have seen him for many years now and he is comprehensive, extremely knowledgeable and caring. If you need a pediatric endocrinologist, he is absolutely the best.

I saw Dr. Daniels while I was at CHOC Hospital. This guy saved my life. After being diagnosed wrong a couple of times he got it right. He was one of the doctors I enjoyed seeing. I could always joke and laugh when he came to my room, which I really needed at the time. He also found me a really great surgeon to do my parathyroidectomy. THANK YOU Dr. Daniels!!

Dr. Daniels from the very beginning of our daughters diagnosis has been amazing. He is very patient and great with kids. He explains everything so one can understand clearly what you are dealing with. We are blessed to have him and his wonderful team at CHOC Newport Beach. We highly recommend Dr. Mark Daniels.

Dr. mark Daniels is the one you want in your corner when your child has medical problems in his field. We have been seeing him for over 4 years now, and he has always been engaged and concerned for our child's health. A great communicator and warm doctor!