Provider Relations is the primary link to the Alliance for our contracted providers. Many of your questions can be answered by a Provider Relations Representative or by calling (510) 747-4510. The information provided in this website is for the exclusive benefit of the Alliance's members, providers and other persons interested in participating in the Alliance as a member or provider. Any use of this information not for the benefit of the Alliance and its members is strictly prohibited. Medical service providers who contract with the Alliance must have credentials obtained and verified through the Alliance credentialing process. The Alliance utilizes a thorough credentialing process in order to ensure the participation of quality providers in the Alliance network and member access to competent physicians and providers. Provider Relations also provides information and support to network providers regarding: Formulary Office Address Changes Provider Contract Site Reviews Provider Recruitment Provider Bulletins Referral Forms Trainings Please note: Acupuncture and Chiropractic Care are covered benefits for Alliance Group Care only.