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The Merck Access Portal

The Merck Access Portal can help answer questions about access and support, including insurance coverage for patients, reimbursement, co-pay assistance for eligible patients, benefit investigations, prior authorizations, appeals, and referrals to the Merck Patient Assistance Program.
Due to The Merck Access Portal enhancements, existing users, registered before 09/17/2019, are required to change their passwords prior to
their next login. Please go here to change your password

For new The Merck Access Portal users, or existing users who have change their passwords on or after 09/17/2019, please register or login here.

Registering with The Merck Access Portal will allow:

Electronic patient enrollment in The Merck Access Program.

Real-time management and tracking of case status.

Automated notifications and dashboard reporting capabilities.


For additional information about The Merck Access Portal, please call 866-847-3539.

This site is intended for health care providers of the United States.