He is the best GI doctor in California if you ask me. Head of Cedar Sinai GI department? Weinberg ran circles around him, Head of GI at Hoag same thing. The only one close to him was the head of GI at Mayo Clinic Florida, the one with the $1 million per month hospital rooms that royalty attend. Weinberg is sharp and up to date on everything GI, he isn't in network and I happily pay cash to keep him as my main GI backbone. I'm using my insomnia to take advantage of writing out reviews I've promised to do before and Weinberg deserves about 15 as that's how many years I've worked with him. He is Ivy League and CA Ivy League due to finishing at UCLA. I know everyone who went to USC will see this as a negative, but I've never had a good doctor that attended USC and I've had multiple. The psychiatrist that over prescribes and her friend the neurologist that said I'm not worth his time. Dr. Arey the psychiatrist and Dr. Martinez the neurologist seem to have an elitist mindset, odd for USC correct? Well Dr. Weinberg is far more qualified than them and yet he is so down to earth and really talks to you, not at you. Wish we could be friends outside of medicine due to how amazing he is, just make an appointment and you'll see.