I think you mean you received an SSA-1099 form in your father's name with his social security number on it. If so, you would need to complete a tax return for him and enter it along with any other income he had, if he was required to file a tax return.
To see if you need to file a tax return for him, you can use this worksheet from the IRS:
https://www.irs.gov/help/ita/do-i-need-to-file-a-tax-return