Excluded medical sources of evidence must provide a written statement of exclusion
                  each time they furnish evidence to us directly or indirectly through a representative,
                  claimant, individual or other entity, see DI 23060.020A. If an excluded medical source(s) of evidence does not include a written statement
                  of exclusion with the furnished evidence, refer the source to SSA's OIG. For more
                  information about excluded medical sources of evidence, see DI 23060.010.
               
               EXAMPLE: An excluded medical source of evidence submits evidence without including a written
                  statement of exclusion. The adjudicator receives clear documentation (e.g., an email
                  from a DDS administrator or professional relations officer) that the source is an
                  excluded medical source of evidence. Refer the source to SSA’s OIG.