MultiPlan Out-of-Network Underpayment Litigation (MDL 3121)
If your healthcare practice has received unexpectedly low out-of-network payments, you may be trying to reconcile remittance records and repricing notices while continuing to care for patients. Understanding who calculated the payment and which agreements apply can require a closer review.
At Rafferty Domnick Cunningham & Yaffa, we review potential MultiPlan-related underpayment claims with healthcare providers. We examine contracts, payment information and repricing communications to help determine whether the practice’s circumstances support further investigation and a potential claim.
Healthcare providers have alleged that MultiPlan and participating insurers used shared pricing arrangements to suppress out-of-network reimbursement. MultiPlan’s role in the litigation is as a pricing and analytics intermediary, rather than simply the insurer that issued a patient’s policy. The allegations require proof.
Providers in MDL 3121 allege that shared pricing arrangements reduced out-of-network payments. A practice’s claim requires its own contracts, payment information and evidence of legally recognized injury.
Sources: JPML MultiPlan transfer order, August 1, 2024.
If your practice received MultiPlan-related repricing communications or payments, preserve those records for review. The documents can help identify the relevant entities and issues; they do not by themselves establish an entitlement to compensation.
We are committed to helping health care professionals understand the value of their underpaid claims, determine whether they are eligible to join the litigation, and pursue meaningful recovery for years of lost revenue.
What Is the MultiPlan Litigation, MDL 3121?
The Judicial Panel on Multidistrict Litigation centralized MultiPlan health insurance provider cases in the Northern District of Illinois in August 2024. The transfer order describes allegations of a common scheme affecting out-of-network reimbursement and assigns coordinated pretrial proceedings to Judge Matthew F. Kennelly.
An MDL transfer addresses case management. It does not establish antitrust liability, approve a damages calculation or determine that a particular provider has a recoverable claim. Individual and proposed class claims may be coordinated in an MDL; coordination alone does not certify a class.
Sources: JPML MultiPlan transfer order, August 1, 2024; Federal multidistrict pretrial procedure, 28 USC 1407.
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What Must Be Examined About the Alleged Repricing Scheme?
The central allegation is that shared pricing arrangements reduced competition in out-of-network reimbursement. To evaluate a practice’s potential claim, the review must distinguish billed charges, the amount allowed, the payment received and the basis given for the reduction.
Explanations of benefits, remittance records, repricing correspondence, contracts and claim-level data may identify the entities and methods involved. A low payment by itself does not prove an antitrust violation or establish that the full billed amount was legally owed.
Sources: JPML MultiPlan transfer order, August 1, 2024.
Who May Qualify to Join the MultiPlan Litigation?
Any medical professional or organization that accepted out-of-network patients and received reimbursements processed by MultiPlan (these reimbursements may have been processed by Data iSight, Viant, ProPricer, or Mars) may have been financially harmed. We can help you determine whether your claims qualify for inclusion in MDL 3121.
Certain provider types are especially likely to have experienced underpayment due to the structure of their services and their dependence on OON reimbursement.
Emergency Medicine Providers
Emergency departments and hospital-based physicians are legally required to treat all patients, regardless of insurance status. This exposes them to significant financial risk when OON claims are underpaid.
Ambulatory Surgery Centers (ASCs)
ASCs often operate in a non-hospital setting, treating patients with private or employer-sponsored health plans. Many of these facilities have limited ability to negotiate favorable OON contracts, making them highly susceptible to pricing suppression by MultiPlan.
Behavioral Health and Addiction Treatment Providers
This sector is often excluded from narrow insurance networks, meaning providers routinely treat OON patients. As a result, they are more dependent on fair OON reimbursements and more vulnerable to manipulation of payment rates.
Specialty Practices Receiving OON Payments
These include anesthesiology, orthopedics, radiology, chiropractic care, pain management, and other specialized outpatient clinics. Many of these providers work on a referral or case-by-case basis and are routinely impacted by insurer-controlled reimbursement schedules.
If your practice consistently received OON payments that fell far below the billed amount—and those payments were processed through MultiPlan (including Data iSight, Viant, ProPricer, or Mars) or associated insurers—your practice may be eligible to join the litigation.
How Could MultiPlan Out-of-Network Underpayment Litigation (MDL 3121) Affect Your Legal Options?
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What a Provider May Seek to Establish
A provider must connect the challenged conduct to an injury the law recognizes. That requires more than multiplying every difference between a bill and a payment. The analysis may consider the relevant agreements, lawful reimbursement obligations, competition and the method used to measure any loss.
A successful claim can seek remedies permitted by the governing law, but filing does not restore revenue automatically. We explain the evidence, procedural requirements and uncertainties before recommending participation.
Sources: JPML MultiPlan transfer order, August 1, 2024.
How We Can Help a Practice Evaluate Its Records
Our review starts with the practice’s services, payer mix and sample out-of-network claims. We identify the relevant entities, separate contractual disputes from potential antitrust issues and explain what further records are needed.
A practice should receive a clear explanation of representation terms, costs, the proposed filing route and its responsibilities for producing records. We can discuss those questions during a confidential case review.
What Should Your Practice Do Next?
Preserve a sample of complete claims: billed services, allowed and paid amounts, remittance explanations, appeals, contracts and repricing correspondence. Keep original data and avoid changing historical entries to make a claim appear stronger.
We can review that material and explain whether a more detailed analysis is warranted. Do not assume a court schedule or another provider’s case protects your filing deadline. The legal theory and relevant dates must be evaluated for your practice.
Sources: JPML MultiPlan transfer order, August 1, 2024; Federal multidistrict pretrial procedure, 28 USC 1407.
Discuss Your Practice’s Out-of-Network Payments
If your practice received payments linked to MultiPlan repricing, contact us for a review of the records and potential legal options. Bring the underlying claim information so the discussion can focus on evidence and the steps available to your practice.
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Florida Provider MultiPlan Litigation FAQs
These answers provide general information. The facts, dates and law governing an individual claim require a separate review.
Does a low out-of-network payment automatically establish a MultiPlan claim?
No. A difference between billed charges and payment does not automatically prove an antitrust violation or establish that the full bill was legally owed. The claim must connect a legally recognized injury to the challenged conduct. Contracts, claim terms, repricing information and the applicable legal theory require review.
Preserve the complete claim, explanation of benefits, remittance and any appeal or agreement affecting payment. The MultiPlan transfer order describes allegations, not findings that every reduced payment was unlawful. Counsel should distinguish ordinary reimbursement disputes from a supported antitrust claim and explain what further data is needed before estimating a loss or recommending participation.
Sources: JPML MultiPlan transfer order, August 1, 2024; 15 USC 15: private antitrust damages actions.
Is MultiPlan the same entity as the insurer that issued the patient’s policy?
Not necessarily. The litigation concerns MultiPlan’s alleged role in pricing arrangements and the conduct of participating insurers or other entities. The entity involved in repricing may differ from the insurer or plan responsible for the benefit. The actual claim and payment documents need to identify each role.
Look for the payer, administrator, pricing reference and any agreements affecting reimbursement. Do not infer the responsible defendant from a familiar logo or a low payment alone. The transfer order identifies shared allegations, while an individual provider’s claim needs evidence showing how the challenged arrangement affected it. Clear entity identification is a necessary part of the legal and damages analysis.
Sources: JPML MultiPlan transfer order, August 1, 2024; Federal Rules of Civil Procedure, effective December 1, 2025.
Which provider records are useful for a MultiPlan review?
Useful records can include claim-level billed, allowed and paid amounts; explanations of benefits; remittances; repricing notices; appeals; and relevant contracts. The review should preserve the relationship between each service, payer and adjustment rather than rely only on a spreadsheet of total shortfalls.
Keep original data and explain any coding, adjustments or missing fields. Patient information should be handled through an appropriate secure process and with applicable privacy requirements in mind. Litigation rules can govern the scope and protection of discovery. The records help test whether the alleged conduct affected the practice, but they do not make every billed-to-paid difference an antitrust loss.
Sources: JPML MultiPlan transfer order, August 1, 2024; Federal Rules of Civil Procedure, effective December 1, 2025.
Does MDL 3121 mean the providers are automatically in one class action?
No. An MDL centralizes common federal pretrial proceedings; it does not automatically certify a class. A coordinated litigation can contain individual actions and proposed class claims, with separate requirements for class treatment. The procedure used for a particular provider must be identified.
Ask counsel whether an individual filing, a proposed class role or another route is being considered, and what that means for records, decisions and obligations. The transfer order’s coordination decision is not a determination of entitlement to damages. A practice should not assume it has filed a claim or protected its deadline merely because the MDL exists or its payments resemble those described in the allegations.
Sources: 28 USC 1407: multidistrict pretrial proceedings; Federal Rules of Civil Procedure, effective December 1, 2025; JPML MultiPlan transfer order, August 1, 2024.
How is an alleged antitrust loss different from the amount originally billed?
An antitrust damages analysis must connect injury to unlawful conduct under the applicable law. The amount billed is a data point, not automatic proof of what competitive or contractually required payment would have been. The theory may require economic and other evidence about the appropriate comparison.
A practice should preserve the underlying claims and agreements so the analysis can distinguish unrelated reductions or lawful payment rules. Federal law provides a damages remedy for qualifying antitrust injury, but the statutory remedy does not eliminate the need to prove the violation, causation and amount. A promise to recover every billing difference would skip those essential questions.
Sources: 15 USC 15: private antitrust damages actions; JPML MultiPlan transfer order, August 1, 2024.
Do antitrust statutes guarantee treble damages for an underpaid provider?
No. Federal law provides a treble-damages remedy when the requirements for a qualifying antitrust claim are established. It does not automatically multiply every disputed reimbursement by three. Liability, legally recognized injury, causation and the supported damages amount remain contested questions in an individual case.
A provider should ask how the proposed theory connects its records to the alleged conduct and what assumptions support the loss calculation. The MultiPlan transfer order coordinates allegations rather than adjudicating them. Any discussion of potential remedies should distinguish the statute’s available relief from a prediction of recovery, and should account for defenses and the actual terms of any settlement.
Sources: 15 USC 15: private antitrust damages actions; JPML MultiPlan transfer order, August 1, 2024.
Can my contracts and prior settlements affect a MultiPlan claim?
Yes. Agreements and releases can affect rights, payment obligations and the available filing route, so they should be reviewed before a claim is recommended. A practice’s contracts may differ from those of another provider even when both received similar-looking repriced payments.
Bring network, repricing and payer agreements, amendments, prior dispute resolutions and any release that could relate to the claims. Do not omit an unfavorable document in the hope that the payment data will be enough. Federal procedure permits claims and defenses to be tested, and the antitrust theory still requires a supported injury. A careful review considers the whole contractual history, not only the latest remittance.
Sources: Federal Rules of Civil Procedure, effective December 1, 2025; 15 USC 15: private antitrust damages actions.
Does the MDL schedule protect my practice’s filing deadline?
No. A coordinated court schedule does not automatically extend every provider’s limitation period. Federal antitrust damages claims generally have a four-year statutory period, but accrual, tolling, the theory asserted and other applicable rules require case-specific analysis. Other claims may follow different timing rules.
Preserve dates of the relevant payments, discovery of the alleged conduct, prior filings and any agreement affecting time. Do not assume a future trial date or another provider’s lawsuit protects your practice. Counsel should explain the deadline analysis for the proposed claim and any basis for tolling rather than rely on the existence of the MDL as a blanket extension.
Sources: 15 USC 15b: antitrust limitation period; 28 USC 1407: multidistrict pretrial proceedings.
Will my practice need to provide information after a case is filed?
Potentially, yes. A provider may need to produce relevant records, answer questions or provide testimony under the applicable court procedures and orders. Coordinated litigation can organize shared issues, but it does not eliminate the need to substantiate the individual practice’s claims and losses.
Identify who understands the billing systems, contracts and data, and preserve original material with its context. Discuss confidentiality and burden concerns with counsel so appropriate protections and procedures can be considered. Do not modify historic entries to strengthen a claim. An accurate, explainable record is more useful than a large total that cannot be traced to its underlying transactions and assumptions.
Sources: Federal Rules of Civil Procedure, effective December 1, 2025; 28 USC 1407: multidistrict pretrial proceedings.
What should a practice understand before agreeing to representation?
The practice should understand the proposed claims, filing route, responsibilities, fees and expenses, and the evidence still needed. A consultation or signed engagement should not be confused with a filed lawsuit or a guaranteed recovery. The representation terms and next procedural steps should be clear.
Ask how the team will evaluate contracts and payment data, communicate developments and verify any required filing. Our work in another case does not establish the merits of this one. The antitrust remedy depends on legally supported injury and proof, while MDL coordination addresses procedure. Decisions should be based on the practice’s actual records and a candid explanation of the uncertainties.
Sources: 15 USC 15: private antitrust damages actions; 28 USC 1407: multidistrict pretrial proceedings.
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