Using PAM LDAP for authorization only?

Does anyone know if it's possible to use PAM LDAP for attribute
authorization only?

What I mean by that is I'm authenticating users via another PAM module,
but I would like to include a check to see if they have a certain
attribute within their entry, with a check like:

pam_filter radiusGroupName=shellaccess

I hope that question makes since.

Thank You,
- Dan