1. Coding for specialties and GPs.2. Complete knowledge of HIPPA compliant ANSI 837,ANSI 997,270/271 Eligibilty Response.3. Functionality of ERA4. Policies, procedures and guidelines of Medicare, Medicaid, HMO, PPO, Worker Compensation and Personal Injury Carriers.5. Withheld and offset amounts6. Paper submission and blocks in HCFA 15007. Understanding of NPI, NCCI, LCD, CLIA and NDC8. Appeals and Provider Dispute Resolution9. EDI/ERA Set Up10.Physician Credentialing