By aggregating the purchasing power of its members, the Onmark Group Purchasing Organization (GPO) conducts negotiations with pharmaceutical manufacturers and other suppliers on behalf of its member practices. As a result, we are typically able to offer better pricing on drugs and relevant services than members would be able to obtain on their own.

Onmark GPO membership also provides access to a wide array of patient care support resources, including treatment guidelines, regimen analysis tools and patient education resources. Joining the Onmark GPO is free of charge and there is no purchasing or financial obligation to be a member. Review these frequently asked questions for more information.

Download the Onmark GPO Membership Enrollment Form.

Current Onmark GPO members can log in to access information on drug contracts and available clinical tools.

Learn More
To learn more about the Onmark GPO, call 855.477.9800 or click here.