['Aetna', 'Aetna Better Health', 'Blue Cross Blue Shield', 'CHAMPVA', 'Cigna', 'Coventry Health Care / Health America', 'Humana', 'Johns Hopkins Employer Health Programs', 'Maryland Physicians Care', 'Medicaid', 'Medicare', 'Multiplan PHCS', 'Neighborhood Health Plan (Massachusetts)', 'Oxford (UnitedHealthcare)', 'Priority Partners', 'Tricare', 'UMR', 'University of Maryland Health Partners', 'US Family Health Plan']
