20 CFR 220.59: Requesting examination by a specific physician, psychologist or institution—hearings officer hearing level.

In an unusual case, a hearings officer may have reason to request an examination by a particular physician, psychologist or institution. Some examples include the following:

(a) Conflicts in the existing medical evidence require resolution by a recognized authority in a particular specialty:

(b) The impairment requires hospitalization for diagnostic purposes; or

(c) The claimant's treating physician or psychologist is in the best position to submit a meaningful report.