New User Registration for Care Providers and Business Associates

In order to access secure content on or to access Link self-service tools to submit claims, verify eligibility or to check for prior authorization requirements, you’ll need to create an Optum ID. 

Are you a UnitedHealthcare insurance member?

Get 24/7 access to easy-to-use tools and resources that help you do so many things – find network doctors, see claims, manage pharmacy benefits, get wellness support and more. 

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Get started by creating an Optum ID with the tax ID number (TIN) of your practice or facility. If you’re the first person to register from your organization, you will receive a security code by mail and will need to come back to this page ( to enter it.

Business Associates such as revenue cycle management companies must register with their own TIN and later connect to care provider TINs using the Multi-TIN access tool in Link Security.

If you received a security code for your Optum ID in the mail, click the button below to enter it and complete your registration. 

Your Optum ID is yours forever. If you’re employed by a different care provider now, you simply need to connect the new TIN using the button below.

If you work for multiple TINs concurrently, please use the Multi-TIN access tool in Link Security instead of the button above. 

Need help accessing certain applications on Link? 

If you have an Optum ID connected to a TIN but are still unable to access specific Link tools, please ask your Password Owner or ID Administrator to make changes to your account access in Link Security.

Your Link Password Owner or ID Administrator that you select during registration will need to complete your request in the Link Security Self-Service Tool.  An email will be sent to you when the request is complete.


Insurance coverage provided by or through UnitedHealthcare Insurance Company or its affiliates. Health plan coverage provided by UnitedHealthcare of Arizona, Inc., UHC of California DBA UnitedHealthcare of California, UnitedHealthcare of Colorado, Inc., UnitedHealthcare of the Mid-Atlantic, Inc., MAMSI Life and Health Insurance Company, UnitedHealthcare of New York, Inc., UnitedHealthcare Insurance Co. of New York, UnitedHealthcare of Oklahoma, Inc., UnitedHealthcare of Oregon, Inc., UnitedHealthcare of Pennsylvania, Inc., UnitedHealthcare of Texas, Inc., UnitedHealthcare Benefits of Texas, Inc., UnitedHealthcare of Utah, Inc., UnitedHealthcare of Washington, Inc., Optimum Choice, Inc., Oxford Health Insurance, Inc., Oxford Health Plans (NJ), Inc., Oxford Health Plans (CT), Inc., All Savers Insurance Company or other affiliates. Administrative services provided by OptumHealth Care Solutions LLC, OptumRx, Oxford Health Plans LLC, United HealthCare Services, Inc. or other affiliates. Behavioral health products provided by U.S. Behavioral Health Plan, California (USBHPC), United Behavioral Health (UBH) or its affiliates.