Provider Toolkit: Prior Authorization Guide

Pre-Auth Needed Tool Use the Pre-Auth Needed Tool on Ambetter.HomeStateHealth.com to quickly determine if a service or procedure requires prior authorization.

Submit Prior Authorization

If a service requires authorization, submit via one of the following ways:


SECURE WEB PORTAL
Provider.HomeStateHealth.com
As of 1/1/2021 all Prior Authorizations should be submitted through the Secure Web Portal. This is the required and fastest method.


PHONE
1-855-650-3789
After normal business hours and on holidays, calls are directed to the plan’s 24-hour nurse advice line. Notification of authorization will be returned by phone, fax or web.


FAX

Medical and Behavioral Health
1-855-690-5433

See below for a list of services that require prior authorization.

  1. Emergency services DO NOT require prior authorization.
  2. All out-of-network services and providers DO require prior authorization.
  3. Failure to complete the required authorization or notification may result in a denied claim.
  4. Failure to obtain a prior authorization for any code(s) on the claim that required prior authorization, will result in a denial of the entire claim.
  5. If additional procedures are performed during the procedure, the provider must contact the health plan to update the authorization within 72 hours of the procedure in order to avoid a claim denial.
  6. Ambetter will update authorizations but will not retro-authorize services.

Services and Procedures Requiring Prior Authorization

THE FOLLOWING LIST IS NOT ALL-INCLUSIVE