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

You are not alone, and here is the measured version of that sentence: 2,652,607 in-network claims were denied by Celtic Insurance Company in Texas in a single plan year. A denial rate is a fact about an insurer's book of business. It is not a judgment about you, and it is not the last word on your claim.

• Of the 14 insurers reporting a denial rate in Texas, Celtic Insurance Company is the 12th highest at 16.3%. The highest in the state is 35.7% and the lowest is 11.7%.
• That is 2.4 percentage points below the 18.7% national average across this dataset, and 2.2 points below the Texas average of 18.5%.
• Behind the percentage: 16,238,521 in-network claims were processed under 13 plans in Texas, and 2,652,607 of them came back denied.
• For every 10,000 claims Celtic Insurance Company denied, about 11 came back as an internal appeal. The other 9,989 stopped at the letter.
• Of the internal appeals it did receive, Celtic Insurance Company overturned 61.2%, 1,842 claims that started life as a no.
• 237 of those denials went on to independent external review, the stage whose decision the plan is required by law to accept. Nationally 32.8% of external reviews are overturned.
• Its most-recorded denial reason is administrative reason at 18% of its categorized denials, against 22.5% nationally, a lighter share than the country as a whole. That is the denial mix, not an outcome rate.
• In Texas, Celtic Insurance Company reported 16.3%, and the same company files in 8 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.
• Celtic Insurance Company accounts for 11.9% of every in-network claim denied in Texas in this file.
• By raw volume it is the fifth largest source of denials among the 158 insurer-state records in the file that report one.
• Put another way: one independent external review was filed for every 11,192 claims Celtic Insurance Company denied in Texas.
• After that, its second-most-recorded reason is service excluded from the plan, 459,881 claims, 16.5% of its categorized denials.
• Third on its own list is referral required, 399,379 claims, 14.3% of what Celtic Insurance Company categorized in Texas. Between them the top three account for 48.9% of its categorized denials.
• Where Celtic Insurance Company differs most from the national mix is not medically necessary: 13.7% of its categorized denials in Texas against 4.6% across the file.
• Read the other way round: 13,585,914 of those 16,238,521 in-network claims were paid, 83.7% of everything Celtic Insurance Company processed in Texas.
• Spread across the 13 plans it reports in Texas, that is about 204,047 denied claims per plan, on about 1,249,117 claims processed per plan.
• Its reason columns add up to 2,784,583 categorized rows against 2,652,607 denials, 105% of them, and every reason share on this page is a share of that first figure rather than of the second.
• Its smallest recorded category in Texas is experimental or investigational, 241 claims, 0% of what Celtic Insurance Company categorized there.
• Against the file as a whole, this one record is 3.1% of the 84,502,749 in-network claim denials reported by every issuer in it.

What happened to appeals

What that record means for your own Celtic Insurance Company letter, and by when. Celtic Insurance Company overturned 61.2% of the 3,010 internal appeals its Texas members filed against 2,652,607 denials, and 237 of those Texas denials went on to the independent stage whose decision binds the plan, Celtic Insurance Company's own 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 Texas. One payment. No subscription. No cut of your claim.

Celtic Insurance Company inside Texas

Your denial did not happen in a national average. It happened in a state market, alongside 17 other insurers reporting into the same federal file, and these are that market's own figures.

• Across the whole of Texas, the 18 insurers reporting in this file processed 120,606,438 in-network claims and denied 22,372,063 of them, a state denial rate of 18.5%. Celtic Insurance Company is one of those 18.
• That puts Texas 14th of 30 states by denial rate, 0.2 points below the 18.7% national average, before you get to what Celtic Insurance Company did inside it.
• Texas recorded 90,241 internal appeals against those denials: one appeal for every 248 claims the state's insurers refused. Celtic Insurance Company's own ratio is one for every 881.
• Independent external review was reached 1,908 times in the whole of Texas, once for every 11,725 denials, against one in 14,369 nationally. 237 of those Texas filings came from Celtic Insurance Company's denials.
• Of the Texas external reviews that were filed, 849 were overturned, 44.5%. That percentage is measured on 1,908 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 Texas's insurers record most often is other reasons, 9,919,256 claims, 38.7% of the state's categorized denials. Celtic Insurance Company records administrative reason most often instead, which is the argument your letter will need to answer.
• The other insurers a Texas reader could have bought from run from 35.7% (Imperial Insurance Companies, Inc.) to 11.7% (CHRISTUS Health Plan). Celtic Insurance Company at 16.3% sits between the two.
• Put the two together and Celtic Insurance Company is responsible for 11.9% of every in-network claim denied in Texas in this release, from 13.5% of the claims the state's insurers processed.
• Every Texas 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 Texas page is free at /states/texas.

What Celtic Insurance Company denies most

The most common denial reason recorded for Celtic Insurance Company plans in Texas is administrative reason. How that denial is beaten →

The last column is each reason's share of all categorized denials nationally, so you can see where Celtic Insurance Company's mix in Texas differs from everyone else's. This is denial mix, not overturn rate by reason, the federal file does not report appeal outcomes broken down by denial reason, and we do not imply otherwise.

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. For what it is worth on this page specifically: Celtic Insurance Company overturned 61.2% of the internal appeals it received.

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 Texas 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 Texas: 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.