Sadly, this is what the profession has become. That's all they do is 15 minutes, but they charge you a friggin' fortune. It's insane (pun intended).

One suggestion - look into a Psychiatric Nurse. Most do both meds and therapy in one visit - and it's an hour, not 15 minutes. And they are generally less expensive than a psychiatrist. Since you already have a good diagnosis with 15 years history - you don't necessarily need a psychiatrist, just someone who can titrate the meds you are already on.

At least get in to see SOMEONE before your meds run out. Don't go off cold-turkey, trust me, it's hell!