3 Best Endocrinologists in Costa Mesa, CA

Extremely detailed,informative,knowledgeable,understanding,instructive, and generous with his time. I only wish I had met him years ago. He spent more than one hour with me. He throughly read through all my medications, and past test. He actually listened to what I had to say. I have a lot of...

Been seeing Dr. B now for 15.5 years. He's the most helpful, most caring doctor I've had since my pediatrician when I was a kid. Dr. B focuses on treating the patient to get well rather than over medicating a patient until no end. I've had doctors like that before. I work in the medical field and...

I have never met a doctor as caring and so knowledgeable as Dr. Ali. I am telling my family and friends about him. He gets an A++.

Dr Marcus is amazing!! Finally diagnosed me with a thyroid disorder after so many years of it being undiagnosed with other doctors. He validated me on my feelings and reassured me that it wasn’t all in my head. Showing me what I had and why I was getting these Symptoms. Yes he’s super hard to get into and pricey but it’s worth the wait and every penny! He actually gets you help with your problems and explains what you need and why, unlike other doctors who just don’t care. Dr. marcus has helped me and my father as patients. We both love him! Highly recommend. He’s very very educated and knows exactly what he’s talking about.

Dr Alan Marcus is the best doctor I have ever seen!!!!! I was very weak a year ago and had gone through a lot specialist and everyone thought I was normal with no problem. I finally analyzed my blood test and searched out Dr Alan Marcus, even though he does not take insurance, I think it will be worth if he is a good doctor. And it turns out HE IS GREAT!!! He immediately identified a lot my underlying problems, like thyroiditis, autoimmune disease, high blood sugar and inflamation... he is the one told me sero-negative Rheumatoid Arthritis when other RA told me I was normal. With Dr Alan's diagnosis, I went back again with different RA and treated my RA problem. Now I have almost 100% recovered. Dr Alan treated my thyroid and blood sugar issue, it stablized my overhealth, I no longer need go to bathroom 5 times a night anymore.. When I have question, Dr Alan is always the first one to ask. I later brought my husband and my daughter to see him as well. Because my daughter complained having headache, stomach ache, I went through GI specialist and other specialist and could not identfy any issues. Dr Alan immediately identified my daughter's issue and now she never complains any pain.

If you need a doctor who Listens and Cares you found him. He is amazing, bit pushy but he means well. He is truly one of the kindest honest doctor you will ever meet. He is priceless.