Search then change owner ship for files/owner

I accident deleted one of the accounts on OpenLDAP and now the files/folder in my NFS and Isilon are all messed up. I need to search for folders/files with UID 3015 and change <user> account as owner. The problem is that there are too many files and folders that were changed because the account doesn't exist any more. Is there a script or command I can run to search for folder/files with <ID> then change <user> account as owner

For example:

drwxrwsrws.     3   3015   neuro     28 Dec 19      subject_5002

Need to change 3015 to <user> account