Effective Jan. 1, 2025, non-contracted Harvard Pilgrim providers will no longer be considered IN network. Providers were considered participating if the provider was IN network with Optum/United Behavioral Health’s network. Harvard Pilgrim invites Optum/United providers that are seeing Harvard Pilgrim clients to join the Harvard Pilgrim network at https://www.harvardpilgrim.org/provider/resource-center/join-our-network/