Average 7.85x Procedure Markup: US Medical Billing Price Variation
CMS Medicare data shows the average US medical procedure carries a 7.85x markup ratio over Medicare-allowed amounts, with COVID-19 vaccines and lab procedures reaching markup ratios above 900x at the extreme tail.
Research period:
Research Question
Across 9,297 CMS Medicare procedures, how large is the gap between what providers submit as charges and what Medicare actually allows, and how is that markup ratio distributed across procedure types?
Methodology
We computed a markup ratio for every procedure code in PlainProcedure's procedures table by dividing national_avg_submitted_charge by national_avg_medicare_payment for all 9,297 codes in the CMS Medicare Physician and Other Practitioners release. We grouped the ratios into five buckets (under 2x, 2x to 4x, 4x to 6x, 6x to 10x, 10x or more) and counted codes per bucket. We then averaged the ratio within each procedure category to identify which clinical categories carry the steepest typical markup. All figures derive verbatim from the CMS source columns with no modeling or imputation.
Findings
The average procedure submits at 7.85x the Medicare allowed amount
Across all 9,297 procedure codes in PlainProcedure's procedures dataset, the mean markup ratio (national_avg_submitted_charge divided by national_avg_medicare_payment) lands at 7.85x. The median ratio sits lower at 5.68x, confirming that a long right tail of extreme-markup codes pulls the average above the typical procedure.CMS Medicare Physician and Other Practitioners, By Provider and Service, 2023 The gap between mean and median is the signature of a skewed distribution: most procedures cluster in the 4x to 6x range while a small set of drug and vaccine codes reach ratios in the hundreds. Procedure profiles expose the submitted-charge and Medicare-payment columns per code for direct comparison.
The submitted charge is what a provider lists on the claim form, while the Medicare allowed amount is what the fee schedule authorizes. A 7.85x ratio means the listed charge runs nearly eight times the federally authorized payment on average. For an uninsured patient billed at or near the submitted charge, that gap is the difference between a Medicare-rate cost and a list-price cost. The 5.68x median tells the more representative story for a typical office or procedural code, since the mean is distorted by the vaccine and drug tail.CMS Medicare Part B National Summary Data Files, 2023
Most procedures fall in the 4x to 6x markup band
Bucketing all 9,297 codes by markup ratio shows the single largest group at 3,100 procedures in the 4x to 6x band. The 6x to 10x band follows with 2,986 codes, and the 2x to 4x band holds 1,590. Only 483 codes carry a markup under 2x, and 1,138 codes reach 10x or higher.CMS Medicare Physician and Other Practitioners, By Provider and Service, 2023 The concentration in the 4x to 10x range (6,086 of 9,297 codes, roughly two-thirds of all procedures) defines the normal operating band of US medical billing relative to the Medicare baseline.
The 1,138 codes at 10x or higher are where the headline-grabbing markups live. These are dominated by administered drugs and vaccines, where the Medicare allowed amount reflects the drug acquisition cost while the submitted charge can include large facility and handling margins. The 483 low-markup codes under 2x tend to be high-volume professional services where the submitted charge tracks the fee schedule closely. Laboratory procedure category and Medicine procedure category pages break these patterns down by clinical type.
Vaccines and injections lead category-level markup at 47.6x
Averaging the markup ratio within each procedure category exposes a clear ranking. Vaccines and Injections top the list at 47.6x across 91 codes, an order of magnitude above any procedural category. The Other category averages 17.8x across 151 codes, Drugs (Administered) 13.9x across 530 codes, and Anesthesia 12.7x across 262 codes.CMS Medicare Physician and Other Practitioners, By Provider and Service, 2023 Temporary Codes average 11.6x, Medicine 9.9x, Hemic/Lymphatic Surgery 8.7x, and Nervous System Surgery 8.2x. The drug-and-vaccine categories sit far above the surgical and procedural categories because their Medicare allowed amounts are pegged to product cost rather than to a service fee.
The category ranking confirms why the fleet-wide mean (7.85x) exceeds the median (5.68x): a handful of pharmacy-linked categories carry markup ratios that a typical surgical or imaging code never approaches. For a patient comparing costs, the practical takeaway is that the markup gap is steepest for administered drugs and vaccines and most contained for established surgical and professional services. The 530 Drugs (Administered) codes at 13.9x average represent the largest high-markup category by code count, making it the most consequential driver of the overall distribution's right tail. Data methodology documents the verbatim ingestion of these columns from the CMS source.
These category averages should be read alongside the bucket distribution: a 47.6x vaccine average does not mean every vaccine code is at 47.6x, but that the category contains enough extreme-markup codes to pull its mean far above the 4x to 6x modal band. Patients and analysts using PlainProcedure can drill from any category page into individual procedure profiles to see exactly where a specific code falls within its category's spread, and to compare the Medicare allowed amount against the submitted charge for that code. The distribution as a whole reflects the structural reality that US medical list prices bear a loose, category-dependent relationship to the federal payment baseline.CMS Medicare Coverage Database, Procedure Code Lookup, 2023 Hospital directory links facility-level reporting for the providers that bill these codes.
Markup ratio distribution across 9,297 procedures
Procedure codes grouped by submitted-charge to Medicare-payment ratio
Average markup ratio by procedure category
Top 8 categories by mean submitted-charge to Medicare-payment ratio
What this analysis cannot tell us
Submitted charge is the amount a provider bills, not the amount any payer pays. Medicare allowed amounts are set by fee schedule and bear no fixed relationship to provider cost, so a high markup ratio does not by itself indicate overcharging. Markup ratios are most extreme for drug and vaccine codes where the Medicare allowed amount reflects acquisition cost rather than a service fee, inflating the ratio relative to procedural codes. Privacy-suppressed low-volume codes (fewer than 11 beneficiaries) are excluded, so rare high-cost procedures are absent. Commercial and cash prices differ from both the submitted charge and the Medicare allowed amount and are not represented in this distribution.
Sources
- CMS Medicare Physician and Other Practitioners - https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners
- CMS Medicare Part B Data - https://www.cms.gov/data-research/statistics-trends-and-reports/medicare-provider-charge-data/medicare-physician-and-other-practitioners
- CMS Medicare Coverage Database - https://www.cms.gov/medicare-coverage-database