Can your wages be garnished if you are paying less than the minimum required amount monthly on medical bills?

It is possible. When a contract is defaulted the lender/creditor may use whatever method is available under the laws of the debtor's state to recover monies owed. Consumer's sometimes believe that if they pay any amount oon the debt and the creditor accepts the payment, other action cannot be taken, this simply is not true. It might be prudent for the debtor to contact the creditor and try to negotiate more affordable repayment terms.