Compare Insurer Negotiated Rates

To compare what different insurers pay for the same procedure, filter Transparency in Coverage (TiC) in-network negotiated rates by billing code, provider, payer, and market. Match like-for-like records first. Then review the full rate distribution by payer and provider instead of treating any single published rate as the market price.

The data is public. According to CMS, most group health plans and issuers of group or individual coverage have been required to post machine-readable files on a public website since July 1, 2022. The hard part is turning those files into a comparison you can defend in a contract negotiation, a repricing decision, or a benefit design review.

How can I compare what different insurers pay for the same procedure in my market?

Compare TiC in-network negotiated-rate records for the same procedure and market, then group the results by payer and provider. Do not compare unmatched codes, unlike provider settings, or rates with unclear billing context.

A repeatable workflow looks like this:

1. Define the procedure. Pick the billing code or code set that represents the service. Confirm the code definition before you pull a single rate.
2. Define the market. Choose one geographic method, such as a metro area, county set, or service area, and apply it to every payer.
3. Filter to the providers under review. Narrow to the facility, physician group, or contracting entity you care about.
4. Group negotiated rates by payer. This is where cross-insurer variation shows up.
5. Review the distribution. Look at minimum, median, maximum, record count, and spread for each payer, not just one number.
6. Investigate large gaps. Before you use a result for contracting, repricing, or benefit design, confirm the outliers are real and comparable.

What are Transparency in Coverage machine-readable files?

Transparency in Coverage machine-readable files are public files that health plans and issuers post on their own websites. CMS says they contain in-network rates for covered items and services, plus allowed amounts and historical billed charges for out-of-network providers. CMS also notes that specific technology may be needed to download and read them because of their size and complexity.

The files hold different kinds of pricing data. They are not interchangeable:

• In-network negotiated rates: rates for covered items and services between the plan or issuer and its in-network providers. This is the measure for comparing what insurers pay.
• Out-of-network allowed amounts: what the plan allowed for services from out-of-network providers. Useful as reference data, not as a contracted rate.
• Historical billed charges: what out-of-network providers billed. A charge is not a payment and should not be benchmarked against negotiated rates.

For a deeper look at file contents and common data problems, see our guide to analyzing price transparency data.

What should you match before comparing negotiated rates?

A defensible negotiated-rate comparison matches the same procedure, provider context, payer, and market before calculating any difference. Use this analyst checklist:

• Procedure code. Different codes can represent different services or billing components. Check the code definition and any modifiers.
• Provider. Rates can differ by facility, physician group, or contracting entity. Identify the entity tied to each rate record.
• Payer. The question is usually about variation across insurers. Group results by payer name, and by plan or network context when available.
• Market. Rates vary across local markets. Apply one geographic rule to every payer in the comparison.
• Service setting. A facility service and a professional service can be priced very differently. Do not pool settings unless the analysis calls for it.

Skip any of these and the comparison will look precise while measuring the wrong thing.

Do TiC negotiated rates show what a patient will pay?

No. TiC negotiated rates support payer and provider rate comparison. A patient's out-of-pocket cost is a different question with a different tool.

CMS lists the machine-readable files and an internet-based price comparison tool as separate plan and issuer requirements. CMS describes that tool as a way for an individual to get an estimate of their cost-sharing responsibility for a specific item or service from a specific provider or providers.

• Negotiated rate: the in-network rate published in TiC data. Use it for benchmarking, contracting, and network analysis.
• Cost-sharing estimate: a member-facing estimate that depends on the individual and the selected provider or service. Use the plan's price comparison tool for this.

Where can you find payer machine-readable files?

Payers publish TiC machine-readable files on their own public websites. CMS notes that it plays no active role in publishing them. Starting October 1, 2027, CMS says plans and issuers must add a home-page footer link titled "Price Transparency" or "Transparency in Coverage" that routes directly to the page hosting the files.

Until that date, there is no consistent location, so expect some searching:

1. Start at the payer's website.
2. Look for "Transparency in Coverage," "Price Transparency," or "machine-readable files." If you cannot find it, CMS suggests searching those terms along with the plan or issuer name.
3. Locate the public page that lists the machine-readable files.
4. Confirm the files cover the payer, plan, network, and services your analysis needs.

Repeat for every payer in your market. That is where manual work starts to break down.

How do you query TiC data at scale?

Teams that need multi-payer, multi-provider comparisons need a way to filter, normalize, and analyze large pricing datasets without opening payer files one at a time. A single payer's files can be too large for desktop spreadsheet tools. Multiply that across every payer in a market and the job becomes a data engineering project.

Gigasheet removes that step. Gigasheet is a healthcare price intelligence platform with nationwide healthcare price transparency data and tools, analytics in a spreadsheet-like interface, negotiated-rate benchmarking, bulk dataset licensing, and APIs. You can analyze commercial negotiated rates across payers and providers without building data infrastructure first.

Common uses include:

• Benchmarking a procedure across insurers in one market.
• Comparing rates across providers for one payer.
• Exporting filtered data for repricing, payment integrity, or network analysis.
• Licensing bulk nationwide price transparency data through datasets or APIs.

What can change the interpretation of a negotiated-rate comparison?

A published negotiated rate is useful only when the underlying records are comparable. Differences in procedure definition, provider context, service setting, and market scope can all change what a result means.

• Procedure definition. Two records with the same code may still differ by modifier or billing component.
• Provider context. One clinician may bill under several organizations, each with its own contracted rates.
• Service setting. Inpatient, outpatient, and professional rates answer different questions.
• Market scope. A wider geography can blend very different local markets into one misleading average.
• Inactive or placeholder rates. Some published rates are tied to contracts or plan designs that are no longer in use. These zombie rates inflate the data and skew benchmarks if they are not filtered out.
• Record count. A payer median built on a handful of records is weaker evidence than one built on hundreds.

When two payers look far apart, check these factors before drawing a conclusion.

Get TiC data ready for analysis

Gigasheet helps payers, providers, employers, TPAs, and healthcare technology teams work with nationwide negotiated-rate data across payers and providers through analytics, downloadable datasets, and APIs. Explore Gigasheet pricing or Request a Demo to see your market.