We don't really have access to all the doctors that might be available to you in Colorado. Your best bet would be to get a referral from your primary care doctor or whoever ordered all your blood work.
If I were going to have parathyroid surgery, I'd have my ENT do the surgery.
If you give us your city or the area you'd be willing to travel, we might be able to do some research for you. If you don't want to put it on the forum, feel free to send me a private message.