Ambetter (Centene) Timely Filing Limit

Ambetter (Centene)'s first published filing rule in the reviewed sources is: 180 days from date of service (examples shown for some Ambetter state plans). Confirm the plan, provider agreement, and event that starts the filing period before submission.

At a glance

• Ambetter’s timely filing limit varies by state plan. Official Ambetter quick-reference materials show examples such as 180 days from date of service for some states and 120 days from date of service for others; claims denials/newsletters also refer to date of service or date of discharge depending on claim type. Use the applicable state provider manual for the controlling rule.

Initial claim filing limits

• 180 days from date of service (examples shown for some Ambetter state plans)
• 120 days from date of service (example shown for some Ambetter state plans)

Corrected claim filing limits

• Not clearly published in the researched sources.

Appeal and reconsideration deadlines

• Not clearly published in the researched sources.

Trigger basis and caveats

• Trigger basis varies by plan and claim type; examples include date of service and date of discharge.
• Ambetter of North Carolina newsletter states timely filing is 180 days of DOS or date of discharge.
• A Washington manual excerpt indicates electronic filers must meet the same timely filing requirements, but the exact limit was not captured in the available excerpt.
• No single Ambetter-wide timely filing rule was confirmed; state/provider manual governs.
• Corrected-claim and appeal deadlines were not confirmed from a single official source in the retrieved materials.
• Do not assume the same filing window applies across all Ambetter brands or states.

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