An enrollee who has received a coverage determination (including one that is reopened and revised as described in Sec. 423.1978) may request that it be redetermined under the procedures described in Sec. 423.582, which address requests for a standard redetermination. The prescribing physician or other prescriber (acting on behalf of an enrollee), upon providing notice to the enrollee, may request a standard redetermination under the procedures described in Sec. 423.582. An enrollee or an enrollee's prescribing physician or other prescriber (acting on behalf of an enrollee) may request an expedited redetermination as specified in Sec. 423.584. [74 FR 1547, Jan. 12, 2009, as amended at 74 FR 65363, Dec. 9, 2009]