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83721 Ldl cholesterol level CPT · General Laboratory test
Classification Test General Laboratory Clinical Chemistry (CMS RBCS)
First observed 2013 — start of our 12-year window; the code predates it
National scale 1.12M services · est. ▲ 2.4% YoY · 412,593 FFS beneficiaries (CY2024, all-Medicare estimate) — 552,661 observed fee-for-service services
CMS descriptor · RBCS classification · Medicare Part B physician/supplier claims, 12-year window · National figures — the MA market is below
Data year CY2024 CY2023 CY2022 locked column CY2021 locked column CY2020 locked column
Market overview
Market Brief 83721
The whole of 83721, written up and sourced.

The Brief is a national document for 83721. Its findings page carries one finding per chapter, each opening the chapter that prints its figure and the table behind it — like these, from Massachusetts, CY2024, the market on this page.

  1. 1Size and growth. 6 billing groups and 35 clinicians billed 83721 in Massachusetts in CY2024 — ~5,330 all-Medicare services (estimated), 3,441 observed fee-for-service. The market is down 2.5% year over year.
  2. 2Payment. Half the field lists between $32 and $40 per service; the median group lists $36. Submitted charges are provider-set list amounts, not payments.
  3. 3State benchmarks. Massachusetts is the #9 state market of 48 for 83721, and its volume moved -5.8% over five years.
Estimated all-Medicare volume estimate
FFS + estimated MA

~35,599 services

22,982 observed fee-for-service (65%) · ~12,617 estimated Medicare Advantage.

Scaled from the observed floor by each state’s fee-for-service share (FFS share as of 2024) — scaled estimate — assumes MA utilization mirrors FFS; not an observation. How we scale
National benchmarks

Massachusetts ranks #9 of the 48 state markets by est. all-Medicare services for this code — 29.0 services per 1,000 Part B FFS beneficiaries in CY2024.

30 svc (lowest) median 8,574 174,043 (highest)

Each tick is one state market's est. all-Medicare services (scaled estimate) for this code, CY2024, on a value axis — the 50 states and DC; overseas territories are excluded. Rank counts from the highest (#9 of 48 ≈ the 83rd percentile). Where each group on this page sits nationally within its specialty renders on its drill-down.

Market position
volume →

Massachusetts is a high-volume, shrinking market for this code — #26 of 48 state markets by 5-year growth, #9 of 48 by est. all-Medicare services.

5-yr change -5.8% CAGR (avg. yearly growth) +1.6%/yr volume #9 of 48 growth #26 of 48
Volume bands are terciles among all state markets for this search, CY2020–CY2024; growth bands are this market's own 5-year change (±2%). CAGR excludes 2020 and the introduction year.
Average charge
per service, submitted list amounts — not payments · named-group basis, observed FFS
Average payment
per service, Medicare paid amounts — not charges · all disclosed claims, observed FFS basis
Charge-to-payment ratio
average list price vs average Medicare payment per service · named-group basis
What they charge

Half the field lists between $32 and $40

Submitted charges are provider-set list amounts, not payments · median $36 (named groups)
Every group, one dot6 billing groups · median $36

Each dot is one billing group — 6 of them list this code

$0$25$50average submitted charge per service, per billing groupmedian $36
One dot per billing group, 83721 in MA CY2024 — average submitted charge per service, provider-set list amounts, not payments. The axis caps near the 95th percentile so the cluster is legible; groups beyond it draw at the cap in accent and are counted on the chart.

Greenfield is Massachusetts's largest named-group market for this service — drawn to scale

Where the market isbubble = services
Greenfield: 834 services · 1 groups · median list charge $40Easthampton: 657 services · 1 groups · median list charge $40Cambridge: 194 services · 1 groups · median list charge $45Burlington: 157 services · 1 groups · median list charge $20Fall River: 107 services · 1 groups · median list charge $32Plymouth: 12 services · 1 groups · median list charge $39GreenfieldEasthamptonCambridgeBurlingtonFall RiverPlymouth
6 of the top 14 billing cities mapped (57.0% of their named-group volume).
Leading city marketsthe map, as a list
1Greenfield 834 $40
1 group · median list charge
2Easthampton 657 $40
1 group · median list charge
3Florence 588 $40
1 group · median list charge
4Amherst 266 $40
1 group · median list charge
5N Dartmouth 238 $32
1 group · median list charge
6Cambridge 194 $45
1 group · median list charge
7Burlington 157 $20
1 group · median list charge
8Feeding Hills 144 $40
1 group · median list charge
9North Dartmouth 140 $20
1 group · median list charge
10Fall River 107 $32
1 group · median list charge
11Worthington 72 $40
1 group · median list charge
City grain — the group ranking lives below. 11 cities listed.

Every group in this market, placed by list charge against volume

This market’s groups, on one chart6 groups · bubble = services
1001,000One billing groupOne billing groupOne billing groupOne billing groupOne billing groupOne billing group$5$12$25$37$50+Average submitted charge per service — list amounts, not paymentsServices per group — 83721, CY2024
One mark per physician group, 83721 in MA CY2024 — marks are unnamed here: a mark’s position is its average list charge, and that figure is part of the platform. Submitted charges are provider-set list amounts, not payments.

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