Public Behavioral Health System ASO Transition

Effective January 1, 2020, Optum Maryland will replace Beacon as the administrative service organization (ASO) for Maryland’s public behavioral health system.  Before then, you need to:

1) SIGN UP FOR TRAINING with Optum—go to .

2) REGISTER with Optum—look for a provider alert when the portal is live (expected Dec. 16th).  Existing authorizations will transfer to Optum, but providers still need to register to continue authorizations and  submit claims.

3) PREPARE for payment—make sure your “Pay To” or “Remit To” address in Medicaid (MMIS) is 100% accurate and ensure that your provider file in Medicaid (through ePREP is up to date.


For  questions, please see the FAQ page on the transition website, call 1-800-888-1965, or email