File bankruptcy over 20k in medical bills?
Jesus Schmitty....I'm glad you aren't my lawyer.
If you do in fact go that route...How many assets do you have? Chapter 7 will involve you liquifying any assets you have to pay off your debts. Chapter 13 will let you reorganize your debt to a manageable payment plan over 3-5 years, but also ties up all your disposable income..
If you had 200K in medical bills, you could possibly need to look at something like that. Not 20K.
Work out a payment plan...the new FICO 9 scoring methods now count unpaid or collection medical bills as less of a factor on your total credit score.
As long as you are paying something towards the debt, theres not much the Dr or hospitals can, or will do.