Understanding Hospital Price Transparency Data

The Centers for Medicare & Medicaid Services (CMS) Hospital Price Transparency Rule, which took full effect in January 2021, requires every hospital in the United States to publish two things: a machine-readable file (MRF) with standard charges for all items and services, and a consumer-friendly display of prices for at least 300 "shoppable" services.

The rule is enforced through financial penalties — hospitals that fail to comply face fines of up to $2 million per year. By 2024, compliance had improved significantly, with the vast majority of large hospitals publishing valid MRF files. My Health Price imports these files directly and makes them searchable.

Each hospital's machine-readable file contains multiple types of prices for each service: the gross charge (chargemaster price), discounted cash price (self-pay rate), payer-specific negotiated rates (what each insurance company pays), and de-identified minimum and maximum negotiated rates. Not all hospitals provide all fields consistently.

Procedures are identified by billing codes — primarily CPT codes for physician and outpatient services, and DRG codes for inpatient hospital stays. Each row typically includes the code, a description, and the various prices. A large hospital may publish hundreds of thousands of rows.

The cash price (also called the discounted cash price or self-pay rate) is what an uninsured patient pays if they pay at the time of service. This is often the most useful number for comparison shopping because it's consistent across patients and isn't affected by individual insurance contracts.

Negotiated rates are what specific insurance companies have contracted to pay. These vary by insurer and can change year to year. They are often much lower than the chargemaster price but may be higher or lower than the cash price depending on the hospital and insurer.

The chargemaster (gross charge) is the undiscounted list price. Almost no one actually pays it. Insurance companies negotiate it down, and hospitals typically discount it heavily for cash-pay patients as well. Ignore chargemaster prices when comparing costs — they're not meaningful for most patients.

The data has real limitations. First, prices cover the hospital facility fee but often don't include physician fees, which are billed separately by the surgeon, anesthesiologist, radiologist, or other providers. Your total bill will typically be higher than the hospital's published price.

Second, data quality varies widely. Some hospitals publish clean, well-structured files; others publish inconsistent or hard-to-parse data. Some hospitals have been slow to update their files, meaning prices may be a year or more out of date. We display a "prices as of" date on each hospital page so you know how current the data is.

Third, the price you're quoted directly by a hospital may differ from what's in the MRF, especially for complex cases involving multiple procedures. Always call the hospital to confirm pricing before scheduling.

My Health Price downloads MRF files directly from hospitals, parses the procedure codes and prices, and loads them into a searchable database. We display cash prices and negotiated rate ranges across hospitals, allowing you to compare costs for the same procedure at different facilities. All data is sourced directly from the official hospital filings — we don't estimate or impute prices.

We update hospital data periodically as new MRF files are published. If you notice data that appears outdated or inaccurate, you can report it using the feedback link on any hospital page.