How does orthonet work with united health plans? UnitedHealthcare has partnered with OrthoNet to perform review activities for orthopedic procedures that require prior authorization for many UnitedHealthcare commercial plans. Physicians should continue to initiate prior authorization requests through UnitedHealthcare's standard process.How to contact an orthonet provider service department? Should you need to, you may call OrthoNet’s Provider Service Department at 1-800-401-0062 to ascertain the status of a member’s authorization request. Our authorizations all bear expiration dates.How to contact a united health care provider? If you are a Provider and require assistance, you may contact UnitedHealthcare plans by calling the toll-free General Provider line. Please do not call the Customer Service number listed throughout this website. Providers are routed by their Tax ID.How do i submit a claim to orthonet? For more information on submitting your claims electronically, please contact our Provider e-Solutions team at 1-800-599-4334. Oxford filters specific participating provider claims to Orthonet. Adjustment codes of Z545 or Z546 on your Remittance Advice identify claims that have been filtered to Orthonet.