Ambetter (Centene) Prior Authorization

Ambetter (Centene) prior authorization rules are often service-specific rather than universal, so the safest workflow is to confirm the requirement in the payer's provider resources before scheduling or submitting care. The notes below summarize the most actionable provider-side guidance captured in the research set for this payer.

At a glance

• Ambetter generally requires prior authorization for non-urgent services before the service is delivered, with submission available through the Secure Provider Portal and, depending on state/line of business, by fax and/or phone. The exact workflow, fax numbers, and service-specific requirements vary by state plan; Ambetter also directs providers to use its 'Pre-Auth Needed' tool to check whether authorization is required.
• Prior authorization rules are not uniform across all Ambetter plans; fax numbers, phone numbers, and even whether phone/fax is offered differ by state.
• Emergency services and some inpatient stabilization scenarios may not require prior authorization, but state-specific manuals should be checked.
• This research did not identify a single Ambetter-wide provider manual covering all states; state manuals/quick reference guides are the operative source.

Where to verify prior authorization requirements

• Verification resource 1
• Verification resource 2
• Verification resource 3

How to submit prior authorization requests

• Secure Provider Portal

• Fax

• Phone

• Submission resource 1

Information commonly required

• TIN and NPI used to bill the claim after the authorized service is provided
• member and service information sufficient to determine medical necessity and service type
• state-specific authorization form / fax form when required

Turnaround notes and caveats

• Ambetter’s Texas marketplace page recommends submitting non-urgent prior authorization requests at least 5 business days before the desired start date of service.
• Texas marketplace page states prior authorization assistance is available Monday-Friday 6:00 a.m. to 6:00 p.m. CT, and 9:00 a.m. to noon CT on Saturdays, Sundays, and legal holidays.
• Prior authorization rules are not uniform across all Ambetter plans; fax numbers, phone numbers, and even whether phone/fax is offered differ by state.
• Emergency services and some inpatient stabilization scenarios may not require prior authorization, but state-specific manuals should be checked.
• This research did not identify a single Ambetter-wide provider manual covering all states; state manuals/quick reference guides are the operative source.

Provider resources

• Provider Toolkit: Quick Reference Guide (official)
• Provider Toolkit: Secure Provider Portal (official)
• Provider Toolkit: Prior Authorization Guide (official)
• Prior Authorization Requirements for Health Insurance Marketplace (official)

Sources