Telephone Redeterminations

Medicare will no longer handle Telephone Redeterminations. All Redetermination requests must be submitted in writing to NHIC. Additional information is available in the New Appeals Process: Medicare Matters 3944 (PDF) or by contacting NHIC Customer Service Department.

Previously, parties had the right to request a review or reconsideration over the telephone, however the regulations no longer provide this right. As of January 01, 2006, please submit your request for redetermination in writing to:

Northern California
Medicare Redeterminations
P.O. Box 2800
Chico, CA 95927-2800

Southern California
Medicare Redeterminations
P.O. Box 272854
Chico, CA 95927-2854

New England
Medicare Redeterminations
P.O. Box 1000
Hingham, MA 02044-1000