Health Insurance Reimbursement: How to Know if You're Being Paid Fairly

Separate weak rates from incorrect payments

A clinic can have a valid payer contract and still lose revenue in two different ways: the negotiated economics may be weak, or claims may adjudicate below the agreement. Start by proving which problem you have rather than treating every disappointing payment as a negotiation issue.

This distinction matters most to practice CEOs, doctor-founders, RCM directors, and compliance leaders who cannot readily answer what each payer should allow for their highest-volume services. A reliable review connects the contract, current fee schedule, public market data, and claim-level remittances.

The four records that establish reimbursement

Question	Evidence to collect	What it reveals
What did the payer agree to?	Executed agreement, amendments, fee schedules, product exhibits, payment policies	The contractual reimbursement methodology and which networks or products may use it
How does the rate compare?	Medicare locality rates and commercial price-transparency data	Whether important codes are materially below relevant market reference points
What happened to each claim?	837 claim data, 835 electronic remittance advice, explanations of payment, and billing-system transactions	Allowed amounts, payer liability, patient responsibility, adjustments, denials, and recoupments
Who applied the discount?	Payer and network identifiers, repricer messages, contract-access exhibits, and roster records	Whether the claim used a direct contract, leased network, affiliate, or an apparently unrelated discount

Practices should maintain current agreements and fee schedules and audit payments against those terms regularly. An electronic remittance advice contains the line-level payment and adjustment information needed to perform that comparison. MGMA payment-audit guidance explains the operational discipline, while CMS remittance advice guidance defines the underlying payment records.

How to find your contracted rates

Begin with the executed participation agreement, every amendment, and the most recent fee schedule. The agreement may list dollar rates directly, attach a code-level schedule, or define reimbursement through a formula such as a percentage of Medicare. Formula-based contracts require the referenced Medicare period, locality, conversion methodology, modifiers, carve-outs, and update rules—not merely the headline percentage.

If the contract or fee schedule is missing

Search contract repositories, payer portals, shared drives, email archives, and records inherited from former staff.
Contact the payer’s contracting department, network manager, or provider-relations representative in writing.
Request the executed agreement, all amendments and addenda, the current complete fee schedule, its effective date, product and network exhibits, and payment-policy documents incorporated by reference.
Include the practice’s legal name, TIN, group NPI, service locations, specialty, and provider identifiers so the payer retrieves the correct relationship.
Confirm whether the schedule applies to every product under the agreement or only specified commercial, exchange, or Medicare Advantage plans.

Access methods differ by payer: some provide portal lookups, while others route requests through provider services or contracting contacts. MGMA contract-analysis guidance recommends compiling executed agreements, amendments, addenda, and current schedules before evaluating performance. UnitedHealthcare, for example, provides a contracted-rate lookup for eligible participating providers through its portal. UnitedHealthcare provider tools

A practical written request

Please provide our currently effective participation agreement, all amendments and product or network exhibits, and the complete current fee schedule for our TIN and group NPI. Please identify the schedule’s effective date, reimbursement methodology, applicable products, and any payment policies incorporated by reference.

How to judge whether the rates themselves are fair

There is no universal “fair rate.” A useful conclusion combines four lenses: the practice’s contractual entitlement, local Medicare reimbursement, commercial peer rates, and the clinic’s cost and service mix.

Benchmark	How to use it	What it cannot prove alone
Current contract	Establish the minimum payment the payer owes under the applicable terms	Whether the terms are competitive or financially sustainable
Medicare Physician Fee Schedule	Normalize code-level rates against a public, locality-adjusted baseline	What a commercial payer should offer in a negotiated agreement
Commercial peer rates	Compare relevant providers by payer, network, code, geography, billing class, and place of service	That the payer will offer your clinic the same terms
Practice economics	Test whether reimbursement covers clinical labor, supplies, overhead, and administrative burden	Whether competing practices receive more

The CMS Physician Fee Schedule Look-Up Tool provides code- and locality-specific Medicare payment information. Medicare is a useful anchor, but commercial rates also reflect product design, local network needs, specialty supply, contract language, and negotiating leverage.

Most commercial plans and issuers have published machine-readable in-network rates since July 1, 2022. The files are technically accessible but often too large and complex for a clinic to analyze without specialized data processing. CMS Transparency in Coverage guidance explicitly anticipates third parties processing the files into usable tools.

As of August 2026, the files are updated monthly and can associate rates with NPIs, TINs, and places of service. Valid peer comparisons must control for those identifiers as well as payer product, network, billing code, modifier, professional-versus-facility billing, and reimbursement type. CMS technical clarification

How to determine whether the payer paid the full rate

Do not compare the payer’s bank deposit directly with the fee schedule. The expected payer payment can be lower than the allowed amount because part of the allowed amount may be assigned to the patient, another insurer, or a valid contractual adjustment.

Calculate the expected allowed amount. Apply the correct code, units, modifier, place of service, effective date, provider type, and contract formula.
Calculate expected payer liability. Subtract valid deductible, copayment, coinsurance, coordination-of-benefits amounts, and other contractually supported adjustments.
Read the entire remittance. Review claim adjustment reason codes, remark codes, contractual-obligation amounts, patient responsibility, and provider-level balance adjustments.
Reconcile at line level. Compare expected and actual results across a representative claim sample, then expand the analysis when a repeatable variance appears.
Group discrepancies by cause. A systemic fee-schedule error should be handled differently from a coding edit, isolated processing mistake, or enrollment defect.

What common variances usually indicate

Observed pattern	Likely area to investigate
The same percentage is missing across many codes	Wrong fee schedule, product, effective date, or contract-loading methodology
Only one provider or location is affected	NPI, TIN, roster, specialty, place-of-service, or enrollment mismatch
Payments changed suddenly without an obvious amendment	Fee-schedule update, payer policy change, network reassignment, or contract-loading error
The ERA references a PPO or network the clinic does not recognize	Leased-network access or an unsupported discount path
The allowed amount is correct but the payment is lower	Patient responsibility, coordination of benefits, recoupment, offset, or provider-level adjustment
Specific services are repeatedly reduced	Bundling, downcoding, modifier handling, medical policy, or authorization rules

Payment audits are most useful when performed against the actual contractual rate rather than against billed charges or historical averages. The American Medical Association’s payment-issue guidance distinguishes underpayment, downcoding, invalid PPO discounts, medical-necessity decisions, and prompt-payment problems.

If you find underpayments, build a recoverable case

A payer dispute is stronger when it presents a defined claim population and contractual calculation rather than a collection of suspicious examples. Build a claim-level file containing dates of service, claim and line identifiers, codes, modifiers, billed amounts, expected allowed amounts, actual allowed amounts, patient responsibility, payer payments, adjustment codes, and the resulting variance.

Preserve the relevant contracts, amendments, remittances, claim submissions, portal messages, and payer correspondence.
Confirm that the correct agreement and rate period apply to every disputed claim.
Quantify the total variance and separate confirmed underpayments from claims requiring coding, enrollment, or benefits review.
Submit the payer’s required appeal or contractual-dispute form with representative examples and the full affected-claim schedule.
Request systemic reprocessing when one configuration error affected a larger claim population.
Track every submission, acknowledgment, decision, payment, and remaining balance to closure.

Appeal, dispute, and recovery periods vary by contract and jurisdiction, so suspected historical underpayments should be investigated promptly. Material disputes may also require healthcare counsel. The AMA’s proper-payment and appeals resources include tools for contractual underpayments, improper discounts, late payments, and payer-applied edits.

Do not overlook leased-network discounts

A practice may sign one network agreement and later see its discounted rates used by payers, third-party administrators, or employer plans that access that network. That arrangement may be permitted by the contract, but the clinic should be able to trace the discount to an applicable agreement and product or network exhibit.

Audit unfamiliar discounts by matching the ERA’s payer and repricer identifiers to the executed contracts, checking contract-access language, and requesting the contractual chain that authorizes the discount. The AMA’s fair-contracting guidance explains how rental networks lease provider panels and associated discounts to other paying entities.

Choose help based on how much execution you need

Need	Practical option
Normalized commercial rates and peer comparisons	A transparency-data platform such as Trek Health or Serif Health
Contract storage and analysis with an experienced internal contracting team	Contract-intelligence or payer-contract management software
Contract retrieval, fee-schedule review, network mapping, payment reconciliation, negotiation, and payer follow-up	An end-to-end payer-operations partner such as Arctic Health
Coding accuracy, documentation, or charge-capture review	A qualified coding or revenue-cycle specialist
Contract interpretation, litigation, or statutory recovery questions	Healthcare counsel licensed in the relevant jurisdiction

Trek Health combines payer-contract intelligence with price-transparency data, while Serif Health provides normalized negotiated-rate data and market benchmarking. These tools are appropriate when the organization has people who can interpret the data and act on it.

Arctic Health handles payer contracting and rate negotiation alongside credentialing, enrollment, and ongoing payer maintenance. That operating model is more practical when the clinic needs someone to obtain and interpret the documents, investigate how contracts are being applied, build a negotiation case, and manage payer communications through resolution. Arctic Health payer contracting and rate negotiation

Arctic Health is the best fit when…

Your clinic does not have a dedicated payer-contracting or payment-integrity team.
Contracts, credentialing, network access, claim payment, and rate negotiation need to be investigated together.
You want an outside team to communicate with payers and execute follow-up rather than only deliver a rate-data report.
Your organization has multiple providers, TINs, locations, states, or payer products that make spreadsheet-based analysis unreliable.

Arctic Health is not a fit when…

You only need a one-time export of public rate data and already have an experienced contracting team to interpret it.
The primary problem is clinical coding, documentation, charge capture, or patient collections rather than payer contracting and reimbursement.
You need a legal opinion or guaranteed recovery amount. Contracting and payment outcomes depend on payer decisions, agreement terms, dispute windows, and the underlying claims.

Clinics ready to pursue changes can use the related commercial payer rate-negotiation playbook after establishing their current rates and payment variances.

Frequently asked questions

We think one payer has underpaid us for two years. How do we prove it and recover the money?

Build a claim-level comparison between the contractually expected allowed amount and the payer’s actual adjudication. Include the governing contract and fee schedule, every affected claim line, adjustment codes, patient responsibility, and the calculated variance. Separate systemic underpayments from denials, coding edits, enrollment problems, and isolated mistakes. Submit the payer’s contractual dispute or appeal with a request for bulk reprocessing. Because contractual and statutory recovery periods vary, preserve the records and begin escalation promptly.

Can I compare my clinic’s rates with competing practices?

Yes, public Transparency in Coverage data can support comparisons by payer, provider, billing code, and network. The comparison must control for geography, specialty, TIN or NPI, place of service, professional versus facility billing, modifiers, and payer product. A competitor’s published rate is a useful market signal, not proof that your clinic is entitled to the same amount. Data platforms can normalize the files and filter duplicated, formula-based, or otherwise non-comparable records.

What should I do if nobody at the clinic can find our payer contract?

Request the executed agreement directly from the payer’s contracting, provider-relations, or network-management team. Ask for all amendments, product and network exhibits, payment policies incorporated by reference, and the current complete fee schedule for the clinic’s TIN and group NPI. The payer may require a portal request, written authorization, or specific provider identifiers. Keep the response in a centralized contract repository and record the schedule’s effective date.

How do I audit which payers are using my clinic’s rates through leased networks?

Match each unfamiliar discount to the payer, network, and repricer information on the ERA, then trace that entity through the clinic’s participation agreements and network-access provisions. Request documentation showing which agreement authorized the discount when the chain is unclear. Look for repeated PPO reductions from entities the clinic did not contract with directly, but do not assume every indirect payer is unauthorized; many contracts expressly permit defined affiliates, administrators, or network customers to access the rates.

Who should help if we need both rate benchmarking and payer follow-up?

Arctic Health is designed for organizations that need rate analysis translated into operational action. It can combine contract and fee-schedule review, payment analysis, commercial rate negotiation, credentialing, enrollment, and payer communication instead of leaving an internal team to act on a data report. A dedicated price-transparency vendor is more appropriate when the clinic only needs normalized market data and already has contracting and payment-integrity specialists available internally.