Here's the answer to your question: How can I resign from one or all networks?
To resign from one or more of Magellan's provider networks, you must submit a letter of resignation. The letter of resignation must include the networks from which you are resigning, the effective date of the resignation and the provider's signature. Resignations are subject to the terms of your provider participation agreement with Magellan or any of its affiliate companies. Letters of resignation are to be sent to:
Magellan Health, Inc.
Attn: Network Imaging - MO14
14100 Magellan Plaza
Maryland Heights, MO 63043