Celtic denied your claim in Nebraska. Here is your deadline.

You are not alone, and here is the measured version of that sentence, for Nebraska rather than for Celtic Insurance Company, because the file left this company's rows empty: insurers in Nebraska denied 383,930 in-network claims in a single plan year, 19.6% of everything submitted, across 5 reporting insurers. How many of those came from Celtic Insurance Company is not on the record; that it happened to a great many people in Nebraska is.

• In Nebraska, Celtic Insurance Company's rate was not reported at all, and the same company files in 9 other states in this file, where the rate is not the same in any of them: 28.2% in Delaware, 24% in Oklahoma, 21.4% in Alabama, down to 16.1% in Arkansas. Which state the plan was bought in moves the odds more than the brand on the card does.

What happened to appeals

What that record means for your own Celtic Insurance Company letter, and by when. Celtic Insurance Company recorded no separately reported denials in Nebraska and no separately reported appeal outcome, so this page cannot tell you how its Nebraska appeals went, the Celtic Insurance Company rows in the plan-year 2026 release of the CMS Transparency in Coverage file, read September 5, 2026 (data.healthcare.gov). Whichever way that lands, nobody files the appeal for you, and the filing runs on a clock set by which plan you hold: an employer or Marketplace plan gives you at least 180 days from the denial notice to file the internal appeal (29 CFR 2560.503-1(h)(3)(i), carried onto individual-market coverage by 45 CFR 147.136(b)(3)(i)), while Medicare Advantage gives you 60 calendar days after you receive its notice (42 CFR 422.582(b)) and Medicaid managed care the same 60 calendar days from the date on the notice (42 CFR 438.402(c)(2)(ii)), both stages free, and the three steps above are the whole of what to do tonight, so take the date printed on your Celtic Insurance Company notice and file well inside whichever of those windows is yours. The free steps are above; the $29 kit is the same clock with the letters pre-filled for Celtic Insurance Company in Nebraska. One payment. No subscription. No cut of your claim.

Celtic Insurance Company inside Nebraska

Your denial did not happen in a national average. It happened in a state market, alongside 4 other insurers reporting into the same federal file, and these are that market's own figures.

• Across the whole of Nebraska, the 5 insurers reporting in this file processed 1,959,261 in-network claims and denied 383,930 of them, a state denial rate of 19.6%. Celtic Insurance Company is one of those 5.
• That puts Nebraska ninth of 30 states by denial rate, 0.9 points above the 18.7% national average, before you get to what Celtic Insurance Company did inside it.
• Nebraska recorded 2,540 internal appeals against those denials: one appeal for every 151 claims the state's insurers refused.
• Independent external review was reached 44 times in the whole of Nebraska, once for every 8,726 denials, against one in 14,369 nationally. How many came from Celtic Insurance Company's denials is not on the record, that is the Nebraska figure this page names as absent at the top and sources at the foot.
• Of the Nebraska external reviews that were filed, 0 were overturned, 0%. That percentage is measured on 44 reviews, which is why the count beside it matters more than the rate does when you are deciding whether to file against Celtic Insurance Company.
• The reason Nebraska's insurers record most often is administrative reason, 226,963 claims, 52.6% of the state's categorized denials.
• Every Nebraska figure in this section is that state's own row in the same federal file Celtic Insurance Company's numbers above come from, CMS Transparency in Coverage Public Use File (PY2026 release, PY2024 claims), data.healthcare.gov — US Government public domain, and the full Nebraska page is free at /states/nebraska.

What the file does record for Nebraska

The federal file carries no usable figures for Celtic Insurance Company in Nebraska, so nothing on this page can tell you how often this company denies or how many of its denials were appealed. What it can tell you is the market that denial happened in: Nebraska's own row, and the 4 other insurers reporting alongside Celtic Insurance Company there. Every number below is Nebraska's, not Celtic Insurance Company's, and it is labelled that way because an absent figure must never be filled in from a neighbor.

• 3 insurers in Nebraska reported a denial rate where Celtic Insurance Company reported none, from Oscar Insurance Company at 21.7% down to Blue Cross and Blue Shield of Nebraska at 15.6%. The whole Nebraska table is published free.
• The largest single source of denials in Nebraska in this release was Medica Insurance Company, with 281,819, its record is here. Celtic Insurance Company's own share of that total is unknown, because its rows are the ones the file left empty.
• Across the whole of Nebraska the 5 insurers reporting in this file processed 1,959,261 in-network claims and denied 383,930 of them, 19.6%. None of that total is attributable to Celtic Insurance Company: an absent row is not a zero row, and we will not add one to make the arithmetic tidy.
• The reason Nebraska's insurers recorded most often is administrative reason, 226,963 claims, 52.6% of the state's categorized denials against 22.5% nationally. Whether it is the reason Celtic Insurance Company recorded most often is not on the record; your own letter names yours.
• Behind it in Nebraska: member not covered at 53,176 claims, then service excluded from the plan at 50,570. Each of those pages says plainly whether external review reaches that category at all, which is the question a Celtic Insurance Company letter is going to raise next.

• Nebraska's insurers denied 383,930 in-network claims in this release, 19.6% of everything submitted, against 18.7% nationally.
• 2,540 internal appeals were filed in Nebraska against those denials, one for every 151 claims refused.
• 44 of those Nebraska denials reached independent external review, one for every 8,726, against one in 14,369 nationally.
• Your deadlines do not depend on any of it: 180 days from the date on your Celtic Insurance Company notice for the internal appeal, then four months from the final internal denial for external review, the same in Nebraska as in every other state.
• What does depend on Nebraska is who decides your case at the end, Nebraska runs its own external review process meeting the federal standards, so an insured plan there goes through the state program.

The three steps at the top of this page are the whole of what you have to do tonight. The longer version, what the internal appeal has to contain, how the independent stage works, and how to ask for expedited handling when waiting would seriously jeopardize your health, is published free here.

Who appeals what at Ambetter (Centene), the insurer's own routing table

Ambetter (Centene) publishes a table of which denial scenarios are appealed by you, the member ("customer appeal") and which only your health care provider can appeal. Almost no patient ever sees it, and appealing a denial that only your provider has standing to appeal burns time inside a fixed window. Quoted from Ambetter (Centene)'s published policy (a page written for health care providers (Texas plan page)), checked 2026-08-25. It is brand-level and applies to Celtic Insurance Company in Nebraska the same as to every other Ambetter (Centene) entity in the file.

Operational facts from the same policy

• Medical-necessity appeal window: 180 calendar days
• Standard resolution clock: 30 calendar days
• Expedited appeal clock: 1 working day / 72 hours from complete information
• Submission (Texas plan): Complaints Department, 5900 E. Ben White Blvd., Austin, TX 78741 · Fax 1-866-683-5369 , Texas plan's address — each state plan publishes its own.
• Member appeal window: 180 calendar days, orally or in writing , Member-side confirmation of the 180-day window; also confirms the 30-day resolution clock ('shall not exceed 30 calendar days from the date Ambetter receives the appeal') and the expedited 1-working-day / 72-hour-written clock.
• Member APPEALS address differs from the complaints address: Appeals Department, 5900 E Ben White Blvd., Austin, TX 78741 · Fax 1-866-918-2266 , Same street address as the Complaints Department but a different fax: appeals go to 1-866-918-2266, grievances/complaints to 1-866-683-5369. The plan page's complaints fax is not the appeals fax.
• External review via MAXIMUS: four months from the final internal decision; standard decided ≤45 days, expedited ≤72 hours , Route: Externalappeal.com, fax 1-888-866-6190, or mail to MAXIMUS Federal Services, 3750 Monroe Avenue, Suite 705, Pittsford, NY 14534. Matches the federal 4-month right this site publishes.

Sources: Ambetter (Centene), "Grievance and Appeals (Ambetter from Superior HealthPlan, Texas)", quoted, not paraphrased; audience: health care providers (Texas plan page); checked 2026-08-25. Ambetter (Centene), "Appeals and Grievances Guide (Ambetter from Superior HealthPlan, Texas — member guide, last updated December 2024)", quoted, not paraphrased; audience: members; checked 2026-08-26. Brand-level policy, applied here because Celtic Insurance Company is an Ambetter (Centene) entity. Your own denial letter and plan documents govern your specific case.

Questions

Everything you need for your Celtic Insurance Company appeal in Nebraska: your two deadlines, the argument that fits your denial reason, the letters, the clinician brief, and the external review request. One payment. No subscription. No cut of your claim. Opens on screen the moment you pay. 14-day refund, no questions, one email to hello@getaxionlabs.com.