Anthem BCBS Prior Authorization for Imaging: Phone, Portal, Forms
Where to submit a Anthem BCBS prior authorization for MRI, CT and PET, the phone number to call, the forms and code lists, and the guidelines the reviewer uses.
Anthem plans use Carelon Medical Benefits Management for advanced imaging review. Requirements differ by state and plan, so start from Anthem's prior authorization page for the member's state.
Where to submit
Carelon provider portal
providerportal.com
Reviews are done by Carelon Medical Benefits Management.
Phone
800-252-2021
Carelon provider portal support
What to know
- Carelon reviews non-emergency CT (including CT angiography and coronary calcium scoring), MRI, MRA, MR spectroscopy, functional MRI, PET and nuclear cardiac imaging, and in some plans echocardiography.
- Carelon may also review the site of care, steering MRI and CT to a free-standing imaging center when a hospital setting is not clinically needed.
- For a member-specific question, Carelon directs providers to the number on the patient's health plan ID card.
Checked against providers.carelonmedicalbenefitsmanagement.com on September 29, 2026. Plans change their vendors and phone numbers; if something here is out of date, tell us.
Frequently Asked Questions about Anthem BCBS
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