I can't help you on the insurance maze question as I was self-pay, but as far as the office staff is concerned, they're great! The Doctors wouldn't be the ones to help you, it would be one of the office staff. Anytime I called with a question, I'd either get help right then, or a callback, or an email. I never met Dr. Choi so I can't comment. You'll want to make an appt with either Dr. Cohen or Dr. Bass. I can vouch for both of them.
I don't regret the decision to go with Dr. Cohen and Hollywood Bariatrics. They're all great and REALLY caring.
I hope this helps,
Michele