Yes, you can run a manual OFAC scan on any individual whether they are a member or a non-member through Tool #778 "Scan a Single Name Through OFAC." You can also perform the OFAC scan function by accessing the CU*BASE Time Out menu, then select OFAC Scan.
OFAC scans can also be performed on Organizations. You would access the same tool and click on the option that reads Organization Account. This will display the data entry field in the proper format for an Organization, as opposed to the first, middle initial and last name convention.