There might be someone right up your alley. Went to an excellent doc who knew his thyroid like a master and also was very knowledgeable on testosterone stuff, Dr John Launius in Lewisville, Tx. He doesn't take insurance, and I think was around $300 for a 2 hour session. General practitioner with another doctorate in pharmacy, so he really knows his med. I think the main reason he doesn't take insurance is because he is a huge advocate for naturally dessicated thyroid (Armour, etc.). He's a great guy, very smart, and did the best physical examination I've ever had by a doc. He was investigated for prescribing lithium, which the committee considered outside of his expertise given that he isn't a psychiatrist (but he does have a doctorate in pharmacy so...), and also for the irrelevant and revealing charge for the board for prescribing armour thyroid and a patient had a hyperthyroid reaction.
Trust me, he's a great doc.