Provider Handbook Magellan network providers must be familiar with and follow the policies and procedures contained in the National Provider Handbook and the Virginia BHSA Provider Handbook Supplement. PDF Virginia BHSA Provider Handbook Supplement Click to download PDF Appendix A: Service Registration/Authorization Grid Click to download Magellan national provider handbook documents: PDF Magellan National Provider Handbook Click to download PDF Magellan National Provider Handbook Appendices Click to download PDF Organizational Provider Handbook Supplement Click to download The Adobe Reader is required to view PDF files.