Rick Harrison is pushing back at claims made by his son Corey about his six-figure medical bills following Corey’s motorcycle accident and complications that followed … saying he covered the bills and Corey isn’t in debt to him.

The “Pawn Stars” star tells TMZ … “As far as I know, I paid all of Corey’s medical bills long before he put the GoFundMe out. He is a grown man in his 40’s and is responsible for how he handles his finances.”

As we reported … a GoFundMe was launched to help Corey cover outstanding medical bills, rent, medications and therapy — and to pay back money he said he borrowed from Rick and friends who helped foot the hospital costs.

But, Rick’s statement contradicts what Corey previously told us … that his dad paid “at least half” of his medical bills, which came as a loan, and he was dead set on paying him back.

Corey also said he drained his savings on the treatment and surgeries following his crash and now has just $400 left in his bank account.

However, Rick tells us … “It’s always nice to be paid back, but there is no repayment schedule in place.”