aetna medicare advantage provider phone number
Medical and Behavioral Health providers: 1  Call our dedicated contact center: 1-800-624-0756 â HMO-based and Medicare Advantage plans. 1-888-MD-Aetna (1-888-632-3862); all other plans. 2  Aetna Pharmacy Management - 1-800-238-6279. 3  Credentialing or re-credentialing status- 1-800-353-1232.