Premera Blue Cross Provider Resources
EviCore by Evernorth is working with Premera Blue Cross Blue Shield of Alaska and BlueCross Washington to provide medical necessity review for outpatient rehabilitation services.


Effective January 1, 2027, prior authorization for massage therapy services will no longer be required. If you have any questions, please contact the Customer Service number located on the back of the member's health plan ID card.
A medical necessity review may be required for the following services:
- Physical Therapy
- Massage Therapy
- Message Therapy services will be discontinued as of 1/1/2027.
- Occupational Therapy
For services found to be medically necessary, EviCore will provide a notification number and date range. Services that aren't medically necessary will be denied. Claims submitted without a medical necessity review may be pended until one is received.
Services performed in conjunction with an inpatient stay, 23-hour observation, or emergency room visit aren't subject to medical necessity review. Patients under the age of 8 are also not subject to these requirements.
Claims Submission
After completion of the medical necessity request review process, EviCore will send the medical necessity determination to the Health Plan. The medical necessity determination will be used to process claims. If the health plan receives a claim without a corresponding medical necessity review, the processing of that claim may stop and providers will be notified to request a medical necessity review from EviCore.
There are currently no General Resources.
Musculoskeletal
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Registration Instructions
EviCore highly recommends providers take full advantage of the online capabilities at https://www.evicore.com/provider
Here you can request prior authorization, review our nationally accepted evidence-based guidelines, and receive announcements about program updates. Access requires only your email address and a brief registration.