Four years after my last (and only) visit to Good ...

Four years after my last (and only) visit to Good Samaritan Hospital, I still have a collection status on my credit report. My fault, but I'm angry.
On a referral from my physician, I made appointment for " Vestibular Rehab " at the hospital to address a temporary vertigo that was affecting me. I presented my insurance card, paid $100 co-pay. A technician spent about an hour with me, gave me a 2 page handout as I left. No treatment rates were posted or ever mentioned and I assumed I had paid in full. Subsequently I received a bill for $320 from Good Samaritan, called its accounting department for explanation. I was told that the insurance payment and my co-pay were insufficient to cover the bill . Amazed me. I asked how much the visit had cost and I was told the standard rate was $200 per 15 minutes of treatment ( $800 per hour ) ! I called the Vestibular Rehab department to verify, called my insurance carrier, called the hospital accounts department to complain. I was simply told....this is what we charge, no justification or explanation. I could easily afford to pay $320 balance, but refused......on general principles, common sense basis. An $800 charge for the treatment I received is unconscionable.
Sour grapes ( from me ) four years later, but buyer beware.