Procedures priced
9,297
HCPCS / CPT codes
National reference · CMS 2023
According to the Centers for Medicare & Medicaid Services (CMS), in 2023 providers billed Medicare for 9,297 distinct procedure codes across 56 states and 5,426 hospitals, on average about 4.1x what Medicare actually paid. This page distils those headline figures from the CMS Medicare Physician & Other Practitioners dataset (2023), per the methodology described below; data last compiled March 2026.
The national picture
Across 9,297 procedures billed to Medicare in 2023, the typical service is billed about 4.1x what Medicare actually pays — a gap driven almost entirely by hospital and physician chargemaster list prices, not by what insurers or Medicare reimburse.
Source: CMS Medicare Physician & Other Practitioners, 2023. Markup = submitted charge ÷ Medicare payment (volume-weighted; drug-administration codes excluded to avoid sub-$1-denominator artifacts).
Procedures priced
9,297
HCPCS / CPT codes
Typical markup
4.1x
billed vs. Medicare, volume-weighted
States & territories
56
Hospitals in dataset
5,426
Annual Part B services
3.4B
3,410,971,712 services
Avg Medicare payment
$384.96
per service, all codes
Average markup ratio for the highest-volume procedure categories. Even routine categories are billed several times the Medicare rate; blood test runs the highest at about 6.4x.
High-volume procedures (over 1,000 annual services) where the billed charge runs furthest above the Medicare rate.
| Procedure | Medicare | Billed | Markup |
|---|---|---|---|
| Placement Of Skin Electrodes And Measurement Of Stim CPT 95938 | $44.15 | $3,375.08 | 76.4x |
| Measurement Of Brain Wave Activity (eeg) Outside The CPT 95955 | $43.54 | $3,186.41 | 73.2x |
| Cell-Based Immunofluorescence (cba) Detection Of Aqu CPT 86052 | $11.80 | $684.11 | 58.0x |
| Needle Measurement Of Electrical Activity In Arm, Le CPT 95870 | $16.05 | $876.87 | 54.6x |
| Cell-Based Immunofluorescence (cba) Detection Of Mye CPT 86362 | $11.80 | $582.53 | 49.4x |
| Exam Of Lung Airways Using An Endoscope CPT 31623 | $13.64 | $663.76 | 48.6x |
| Elisa Detection Of Aquaporin-4 (neuromyelitis Optica CPT 86051 | $11.30 | $517.12 | 45.8x |
| Placement Of Skin Electrodes And Measurement Of Cent CPT 95939 | $98.40 | $4,356.26 | 44.3x |
Using these statistics
National averages set the baseline; your specific procedure and state are what you actually pay.
Figures are averages computed from CMS public data and exclude drug-administration codes from markup calculations to avoid sub-$1-denominator artifacts. They are benchmarks, not quotes.
Source: CMS Medicare Physician & Other Practitioners dataset, 2023 CMS Medicare Physician & Other Practitioners dataset, 2023 National averages, volume-weighted