Insurance Appeal Deadlines in Oregon
Appeal deadlines depend on your plan type — not a single statewide number. Below is the federal framework that applies to most commercial and employer-sponsored plans in Oregon, plus Oregon's verified external-review filing window. This page is educational information, not a substitute for the deadline printed on your own denial letter.
The federal framework, by plan type
ACA-compliant individual/small-group plans
Internal-appeal and external-review procedures are set by 45 CFR § 147.136. Non-grandfathered plans must offer at least one internal appeal and access to external review of adverse benefit determinations. The exact filing window is stated in your plan's Explanation of Benefits (EOB) or denial notice. Note: some plans use the HHS-administered federal external review process (currently applicable in Alabama, Florida, Georgia, Texas, Wisconsin, and the U.S. territories). As of July 2026 that federal process is temporarily unavailable, and HHS has said affected filing deadlines may be extended. If your plan uses it, confirm the current process and deadline with your plan or at HealthCare.gov before relying on the 4-month figure.
Self-funded employer (ERISA) plans
ERISA claims-procedure timeframes follow 29 CFR § 2560.503-1 and ERISA § 503 (29 U.S.C. § 1133): generally 72 hours for urgent care claims, 15 days for pre-service claims, and 30 days for post-service claims on the initial determination, with at least 180 days for the insured to file an internal appeal. Self-funded plans are generally exempt from state insurance regulation — remedies run through the U.S. Department of Labor (EBSA) rather than the state commissioner.
Medicare (traditional and Medicare Advantage)
Medicare Advantage and Original Medicare follow their own separate appeal timelines — not the ACA/ERISA framework above. Check your plan's denial notice (or Medicare.gov) for the exact deadline; the state timeframes on this page do not apply to Medicare.
Medicaid
Medicaid also has its own, separate appeal track. Fair-hearing rights follow 42 CFR § 431.220, and Medicaid managed-care plan appeals follow 42 CFR Part 438 Subpart F (§ 438.402 et seq.). These deadlines and procedures differ from commercial plans; follow the instructions in your Medicaid denial notice.
Oregon external-review filing window
180 days
to request external review after a final adverse determination
Oregon statute requires the enrollee to apply in writing for external review not later than the 180th day after receipt of the insurer's final written decision — longer than the 4-month standard.
Medicare and Medicaid follow different tracks
Everything above describes commercial, ACA-marketplace, and self-funded ERISA plans. If your coverage is Medicare (traditional or Medicare Advantage) or Medicaid, none of the deadlines above apply. Medicare Advantage and Original Medicare follow their own separate appeal timelines — check your plan's denial notice (or Medicare.gov) for the exact deadline. Medicaid fair hearings follow 42 CFR § 431.220, and Medicaid managed-care appeals follow 42 CFR Part 438 Subpart F (§ 438.402 et seq.) — a separate track from commercial/ACA/ERISA plans. The state timeframes on this page do not apply to Medicare or Medicaid — always follow the appeal instructions printed in your own denial notice.
How to use this information
Find the deadline on your own denial letter first
Your EOB or denial notice states the specific deadline and process for your plan. That date controls — not a general figure from this page.
Identify your plan type
ACA-marketplace, self-funded ERISA, Medicare, and Medicaid plans each follow a different appeal track with different deadlines. Your plan documents or insurance card can confirm which applies.
Generate your letter
AppealWin generates a complete, editable appeal letter with the correct regulatory citations in minutes. Therapists get 5 free letters every month; a one-time $19 patient letter is also available.
Frequently asked questions
What is my actual appeal deadline in Oregon?
Your denial letter (EOB) states YOUR actual appeal deadline — always follow the date and instructions in your specific denial. Deadlines vary by plan type and can change.
How long do I have to file an internal appeal?
For ACA-compliant plans, internal appeal timeframes are set by 45 CFR § 147.136. For self-funded ERISA plans, they follow 29 CFR § 2560.503-1 and ERISA § 503 (29 U.S.C. § 1133). Medicare and Medicaid follow their own separate tracks.
How long do I have to request external review in Oregon?
Oregon law gives an insured 180 days to request external review after a final adverse determination, under ORS § 743B.255(1). Your denial letter (EOB) states YOUR actual appeal deadline — always follow the date and instructions in your specific denial. Deadlines vary by plan type and can change.
Does Medicare or Medicaid follow these deadlines?
No. Medicare Advantage and Original Medicare follow their own separate appeal timelines — check your plan's denial notice (or Medicare.gov) for the exact deadline. Medicaid fair hearings follow 42 CFR § 431.220, and Medicaid managed-care appeals follow 42 CFR Part 438 Subpart F (§ 438.402 et seq.) — a separate track from commercial/ACA/ERISA plans. The state timeframes on this page do not apply to Medicare or Medicaid.