For participating providers on Wellcare Medicare Advantage plans, the timely filing limit is 180 calendar days. WellCare’s 2026 Medicare Advantage Provider Manual says Clean Claims — initial, corrected and voided — must be submitted within 180 calendar days from the date of service, or from the date of discharge for inpatient services, unless the provider agreement states otherwise.
The start date is specific. On a professional claim (CMS-1500 or 837P) the clock runs from the “from” date of service. On an institutional claim (UB-04 or 837I) it runs from the “through” date. A claim that misses the window can be denied, and the manual is explicit that you may not bill the member for a service denied that way.
Wellcare is the Medicare Advantage brand of Centene. Since January 2022 the former Allwell and ‘Ohana Health Plan Medicare brands have been folded into it, and some states have co-branded plans such as Wellcare by Meridian in Michigan. That history is why WellCare claims cause confusion: the card in front of you may be a national Wellcare plan, a co-branded plan or a state Medicaid plan, and the deadline depends on which.
Texas is where a generic “180 days” answer gets claims denied, and WellCare’s own documents do not agree with each other:
When a payer publishes two numbers, bill to the shorter one. File Texas WellCare claims within 90 days of the date of service unless your contract confirms a longer window in writing. Filing early costs nothing; assuming 180 days on a 95-day plan costs you the claim.
| What you are filing | Deadline | Source |
|---|---|---|
| Initial claim (participating provider) | 180 calendar days from the date of service, or discharge for inpatient | 2026 MA Provider Manual |
| Corrected or voided claim | Same 180-day window, still counted from the original date of service | 2026 MA Provider Manual |
| Texas health plans | 95 days (2026 manual) — or 180 participating / 90 non-participating (June 2025 Texas guide) | Both WellCare documents |
| Claim payment dispute, including untimely-filing denials | 90 calendar days from the date on the EOP | Claims, Disputes & Recovery Guide |
| Participating provider appeal of a UM decision or claim denial | 90 calendar days from the decision or denial | 2026 MA Provider Manual |
| Overpayment administrative review | 45 days from the recovery letter date | Claims, Disputes & Recovery Guide |
| Non-contracted provider payment reconsideration | 65 calendar days from the remittance notice, with a signed Waiver of Liability | CMS Medicare Advantage appeal rules |
| Member reconsideration (appeal) | 65 calendar days from the adverse determination | 2026 MA Provider Manual |
Every WellCare deadline above carries the same qualifier in the source: or as specified in your provider contract. If your agreement names a different number, the contract wins. Use the table as the default and the contract as the override.
WellCare treats corrected and voided claims as subject to the same timely filing rules as the original, which is the detail most billers miss. The 180 days do not restart when you correct a claim. A correction sent on day 170 has ten days of window left, not 180.
Electronically, WellCare wants the frequency code in Loop 2300, CLM05-3: 7 to replace a claim, 8 to void it. In the same loop, REF01 = F8 and REF02 = the original WellCare claim number. Neither code is for an original submission or for a claim that was rejected — a rejected claim never entered WellCare’s system, so it goes back as a new original claim. If you are unsure which code applies, the claim frequency code tool settles 7 versus 8, and our guide to filing a corrected claim covers the paper version.
When WellCare is secondary, bill the primary payer first and send WellCare the balance with the primary payment information attached. Electronic submitters put it in the 837 COB segments; only paper submitters need to attach the primary EOB. If the primary coverage has ended, send the initial claim with proof of termination, and if the primary retroactively terminated, include proof that you returned its payment.
The 2026 manual does not set a separate filing window for secondary claims, so the safe assumption is that the 180-day clock from the date of service still applies. That makes a slow primary payer a WellCare problem: chase the primary early, rather than waiting on an EOB that arrives on day 175. For working out who pays first, our primary payer decision tool walks through the order.
Untimely-filing denials are winnable when you can prove the original submission date. WellCare’s manual lists what counts:
Two things do not count: a SNIP rejection letter and a copy of your billing system screen. Save the acceptance report for every WellCare batch — it is the only evidence that wins a timely filing dispute.
WellCare’s national claims guide lists these submission details. Check the member’s ID card before using them, because co-branded Wellcare plans can route claims differently.
| Item | Detail |
|---|---|
| Payer ID — fee-for-service claims (professional or institutional) | 14163 |
| Payer ID — encounters | 59354 |
| Paper claims | Wellcare, Attn: Claims Department, P.O. Box 31372, Tampa, FL 33631-3372 |
| Claim payment disputes | Provider portal (preferred), or Wellcare, Attn: Claim Payment Disputes, P.O. Box 31370, Tampa, FL 33631-3370 |
| Preferred clearinghouse | Availity (other clearinghouses are accepted) |
WellCare does not accept handwritten, faxed or photocopied claim forms, so a paper claim must be a clean original form.
Everything above describes Wellcare Medicare Advantage. WellCare-branded Medicaid plans are run under state contracts, and the state contract sets the filing limit, which is often not 180 days. The branding has also moved: WellCare of North Carolina’s Medicaid claims page, for example, now redirects to Carolina Complete Health. For a Medicaid patient, take the plan name from the ID card and use that plan’s provider manual, not the Medicare Advantage figures on this page. Our Medicaid billing guide explains why those limits vary by state.
Deadlines on this page come from WellCare’s own provider documents: the Wellcare Medicare Advantage Provider Manual 2026, the national Claims, Disputes & Recovery/CCU Guide, and the Texas Medicare Quick Reference Guide (June 2025). The non-contracted provider rule comes from CMS’s Medicare Advantage appeals guidance. Payers revise these documents, and your provider agreement overrides them — confirm anything claim-specific before you rely on it.
All payer guides, Humana billing guide (another large Medicare Advantage payer), timely filing limits explained, and CO-29 denial code for what to do once a claim has already denied as late.
A 90-day dispute window and a Texas exception are exactly where Medicare Advantage claims quietly die. We track payer-specific deadlines as part of full revenue cycle management — the first week is free.
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