Oscar Health has no single national timely filing limit. Its 2026 provider manual (updated September 1, 2026) says claims are due within the deadline set by applicable state law, unless your provider agreement says otherwise. Corrected claims get the same window as the original claim. The deadlines Oscar does publish: 180 days from receiving the EOP to file a claims dispute (365 days in Florida and Texas), 180 days from receiving the adverse determination notice for a clinical appeal, and 7 business days to request a peer-to-peer. In Texas, out-of-network providers have 95 days from the last date of service.
What Is Oscar Health's Timely Filing Limit?
Oscar's initial-claim deadline is whatever your provider agreement says, or state law if the agreement is silent. The manual's "Timely Filing of Claims" section says providers must submit clean claims "within the timeline specified by applicable state law unless stated otherwise in your Agreement." It doesn't give a number of days.
That wording matters because Oscar sells ACA individual and small-group plans in many states. Per the 2026 manual's product table, that's HMOs in Arizona, Georgia, North Carolina, Ohio, Pennsylvania, Illinois, Texas, Mississippi, and Florida; EPOs in Florida, Iowa, Kansas, Michigan, Missouri, Nebraska, New Jersey, New York, Tennessee, Texas, Virginia, and Alabama; and a PPO in Oklahoma. One national number would be wrong in most of them.
Oscar has publicly posted an upcoming 2027 provider manual with a future-dated November 1, 2026 update date. As of this guide's October 27, 2026 review, the current deadline facts below rely on the September 1, 2026 PY26 manual, not that upcoming edition. Check which edition applies before submitting.
Your Oscar agreement is the first place to look
For in-network providers, the agreement sets the filing window. State law only fills the gap. Before you write off a claim as late, or assume you have time, pull the timely filing clause from your Oscar participation agreement.
Oscar Health Filing Deadlines by Event (2026)
Six different Oscar deadlines can apply to one claim, and each starts on a different date. The table lists every window the 2026 manual and Oscar's state supplements publish, along with the event that starts each one.
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| Event | Deadline | Clock starts | Source |
|---|---|---|---|
| Initial claim | Set by state law, unless your agreement says otherwise | Per the state rule or agreement (usually date of service or discharge) | 2026 Provider Manual, Timely Filing of Claims |
| Initial claim, Texas out-of-network | 95 days | Last date of service | Oscar Texas State Supplement (PY2026) |
| Corrected claim | Same as the initial claim window | Same as the initial claim | 2026 Provider Manual, Claim Corrections and Late Charges |
| Records or information Oscar requests | 90 calendar days (35 days in Florida) | Receipt of Oscar's initial request | 2026 Provider Manual, Requests for Additional Information |
| Claims dispute (payment dispute) | 180 days (365 days in Florida and Texas) | Receipt of the Explanation of Payment (EOP) | 2026 Provider Manual, Provider Disputes |
| Clinical appeal of an adverse determination | 180 days | Receipt of the adverse benefit determination notice | 2026 Provider Manual, Appeals |
| Peer-to-peer request | 7 business days | Date the prior authorization was denied | 2026 Provider Manual, Peer-to-Peer Process |
Source: Oscar Health 2026 Provider Manual, last updated September 1, 2026, and the Oscar Texas State Supplement. Each deadline applies unless your provider agreement or applicable law sets a different one. Checked October 27, 2026.
State Rules That Set Oscar's Initial-Claim Window
Oscar publishes a state-specific filing number only for Texas, so in every other state the answer comes from your agreement or state law. Oscar posts state supplements for Illinois, Ohio, and Texas on its provider resources site. Only the Texas supplement has a filing section. The Illinois and Ohio supplements don't set a separate claim deadline.
Texas
The Texas supplement tells in-network providers to check their contracts for the filing deadline. Out-of-network providers must submit all claims within 95 days of the last date of service. Texas is also one of the two states where the claims dispute window is 365 days from the EOP, not 180.
Florida
Florida law sets the default. For insurers, Florida Statutes §627.6131(3)(b) requires claims to be submitted within 6 months after discharge for inpatient services or the date of service for outpatient services, and after the provider has the patient's correct insurer name and address. HMOs fall under §641.3155(2)(b), which uses the same 6-month language. Oscar sells both HMO and EPO plans in Florida, so the plan type on the member's card tells you which statute applies. Florida also gets the 365-day dispute window and a shorter 35-day deadline to return records Oscar requests.
Every other Oscar state
Use your agreement first, then the state's prompt-pay or claim-submission rule. Don't borrow Florida's or Texas's number, and don't assume the 180-day dispute window is also your filing limit. Those are different clocks.
For how other payers compare, see timely filing limits by insurance company.
Which Date Starts the Clock?
Most Oscar timely filing problems come from tracking the wrong start date, not from missing the right number. Each window in the table above starts on a different event:
- Initial and corrected claims run from the date the state rule or your agreement uses. That's usually the date of service, or discharge for inpatient stays. Florida's statute also requires that the provider have the correct insurer information. Keep a record of when the patient gave you their Oscar card, especially for patients who first presented as self-pay or with another insurer.
- Claims disputes run from when you received the EOP, not from the date of service or the date Oscar processed the claim. Keep the EOP delivery date. Oscar's default payment method is a virtual card sent with an EOP, per the manual, so note when it actually arrived.
- Records requests run from receipt of Oscar's first request. Follow-up requests don't restart the clock: the manual says all requests must be fulfilled within 90 days of the initial one.
- Clinical appeals run from receipt of the adverse determination notice, and peer-to-peer requests run from the date the authorization was denied. Asking for a peer-to-peer doesn't pause the 180-day appeal window.
A corrected claim isn't a dispute
If you fix a code, a modifier, or a date of service, that's a corrected claim, and it has to land inside the original filing window. If you're contesting how Oscar paid or denied a clean claim, that's a claims dispute with its own 180- or 365-day window from the EOP. Filing one when you meant the other is a common way to lose a claim to timing.
Oscar Corrected Claim Requirements
Oscar gives corrected claims the same deadline as the original claim, and it rejects resubmissions coded wrong. The 2026 manual says a corrected claim must be submitted "within the same time frame as the timely filing limit" for the original. It also says to submit a correction whenever claim information changes, such as procedure codes, diagnosis codes, or dates of service. Send the entire claim, not just the changed lines.
Coding requirements from the manual:
- CMS-1500 (paper): frequency code 7 in Item 22 (Resubmission Code), with the original payer claim ID in the original reference field.
- UB-04 (paper): claim frequency type 7 as the third digit of Type of Bill (Form Locator 04), with the original payer claim ID.
- Electronic (837): frequency code 7 in CLM05-3, with the original payer claim ID in the reference field.
The manual warns that updated claims without these codes "may be denied as duplicate submissions." If Oscar asks you to correct a claim by mail, write "Corrected Claim" on it and send it to the address on the member's ID card. Electronic claims go through Availity with payer ID OSCAR. General paper claims go to Oscar Health, P.O. Box 52146, Phoenix, AZ 85072-2146.
Behavioral health, pediatric dental, pediatric vision, and pharmacy claims can go through Oscar's delegated vendors, which have their own submission instructions in the manual's "Our Delegated Vendors" section. Check the member's card and that section before you file.
For corrected-claim windows at other payers, see the corrected claim timely filing limits guide.
How to Dispute an Oscar Timely Filing Denial
Contest a timely filing denial with Oscar's Claims Disputes Provider Form within 180 days of receiving the EOP (365 in Florida and Texas), and attach proof that the claim was filed on time. The manual says the form is required for every payment dispute and that incomplete forms are sent back. You can submit it through the Oscar provider portal, by fax at 1-888-977-2062, or by mail to Oscar Health, Inc., P.O. Box 52146, Phoenix, AZ 85072-2146. On the form, choose the "exceeded claim timely filing limit" category.
What to attach:
- Proof of the original submission date. A clearinghouse acceptance report (277CA or equivalent), an Availity confirmation, or a payer acknowledgment showing the claim reached Oscar inside the window.
- The governing window. Quote the timely filing clause from your Oscar agreement. If the agreement is silent, cite the state rule (for example, Florida §627.6131 or §641.3155).
- Any reason the clock started later. For example, documentation showing when the patient first gave you correct Oscar insurance information, if the Florida statute's second condition applies.
- The EOP showing the denial, so the dispute ties to the right claim ID. Each form covers one claim.
For a field-by-field walkthrough, see the Oscar Health appeal form guide. For letter language to attach, use the Oscar Health appeal letter templates, which include a timely filing paragraph. If you need to confirm what Oscar received and when before you file, the claim status call script covers what to ask. Oscar Provider Services is 1-855-672-2755.
The member usually isn't liable
Oscar's manual says that if a provider doesn't follow the rules in its agreement, the manual, or state regulations, with timely filing as the first example, the provider can't hold the member liable for payment. Don't bill the patient for a timely filing write-off. Dispute it or adjust it off.
Prepare Oscar Dispute Materials With Muni Appeals
Muni Appeals helps organize the EOP or denial notice and supporting materials you upload, and prepares a dispute or appeal letter draft for staff review. Your team selects the Oscar form, verifies the current filing route, and calculates the controlling deadline from the applicable notice, provider agreement, and state law. Staff then review the draft, attach the proof of timely submission, and file it.
Use Muni for document organization and draft preparation; keep the verified window, its start date, and the submission confirmation in your team's deadline records.
Frequently Asked Questions
What is Oscar Health's timely filing limit for 2026?
Oscar doesn't publish a single national limit. Its 2026 provider manual says claims must be submitted within the deadline set by applicable state law, unless your provider agreement specifies a different one. In Texas, Oscar's state supplement gives out-of-network providers 95 days from the last date of service. In Florida, the cited insurer and HMO statutes set 6 months after both the date of service or inpatient discharge and the provider's receipt of the patient's correct insurer name and address. Check the applicable law and your agreement before calculating the deadline.
What is Oscar's timely filing limit for corrected claims?
The same as for the original claim. The manual says a corrected claim must be submitted within the timely filing limit that applies to the initial claim. Use frequency code 7 and the original Oscar claim ID, and resubmit the whole claim, or Oscar may deny it as a duplicate.
How long do I have to dispute an Oscar claim?
180 days from receiving the Explanation of Payment, or 365 days in Florida and Texas, unless your provider agreement sets a different timeline. The Claims Disputes Provider Form is required.
How long do I have to appeal an Oscar medical necessity denial?
180 days after receiving the adverse benefit determination notice, unless law or your contract says otherwise. A peer-to-peer must be requested within 7 business days of the prior authorization denial, and it doesn't extend the appeal deadline. See the Oscar medical necessity letter template for the clinical appeal.
How long do I have to send records Oscar requests?
90 calendar days from receipt of Oscar's initial request, or 35 days in Florida, unless your agreement says otherwise. Send the EOP or a copy of the request letter with the records. Oscar isn't liable for interest or penalties on claims denied because requested records weren't sent.
Is the 180-day Oscar dispute window the same as the timely filing limit?
No. The 180-day window (365 in Florida and Texas) is for disputing a claim Oscar has already processed, and it starts when you receive the EOP. The timely filing limit is for getting the original or corrected claim to Oscar, and it's set by state law or your agreement, usually from the date of service.
Does Oscar have a different timely filing limit for out-of-network providers?
Oscar's only published out-of-network window is Texas: 95 days from the last date of service. Elsewhere, out-of-network providers have no Oscar agreement, so the state's claim-submission rule applies. Oscar's HMO and EPO plans don't cover out-of-network care except emergency services, per the manual's product table. Its Oklahoma PPO does.
For the full Oscar process across denial types, see the Oscar Health appeal guide.
The current deadline facts in this guide reflect the Oscar Health 2026 Provider Manual (last updated September 1, 2026), Oscar's Texas, Illinois, and Ohio state supplements, and Florida Statutes §627.6131 and §641.3155, reviewed October 27, 2026. The publicly posted PY27 manual has a future-dated November 1, 2026 update date and is noted as upcoming, not as the basis for current deadlines. Your Oscar provider agreement controls where it sets different deadlines. Deadlines, addresses, and forms change, so check Oscar's current provider resources and your contract before you rely on a date. This is administrative guidance, not legal advice.