- Market sizeThe volume of this code in the market for the year: an all-Medicare estimate scaled from the observed fee-for-service count where one can be drawn, otherwise the narrower count the row names. ~126,457 all-Medicare services · est. (63,488 observed FFS). The #1 state market of 51 by est. all-Medicare volume.
- Billing groupsHow many named billing organizations billed this code in the market, and the services they billed between them. Billing that falls under CMS's 11-beneficiary disclosure floor is absent from the published record. 93 groups bill G0500 in California — 43,431 observed fee-for-service services (at the ≥11-beneficiary disclosure floor).
- GrowthHow this code's volume changed year over year and over five years. A change between two years of the record, never a projection of what comes next. Down 12.1% year over year; -19.6% over five years, #10 of 51 by five-year growth.
- Market structureHow much of the state's named-group volume the five largest billing groups hold, banded: under 40% fragmented, 40–60% moderately concentrated, 60–80% concentrated, 80%+ highly concentrated. Our bands, not a regulator's. Not shown for markets under 11 billing groups, or where named groups cover under 25% of the state's disclosed volume — both published floors. Moderately concentrated — 93 billing groups, the top five holding 43% of named-group volume.
- Concentration trendHow the five largest groups' share of this market moved between the two years shown. An endpoint comparison on the group roster, not a reading of every year in between. More concentrated in 2024 than 2020 (top 5 hold 37% → 43%, group-roster grain).
- Medicare paymentWhat Medicare paid for this code in the market over the year, and the payment per service. Observed fee-for-service payments only: Medicare Advantage is paid by capitation and is not counted.Medicare's payments for G0500 in California in 2023, and this market's payment per service against the national rate. Explore — see what Medicare pays for this →
This market's Overview — its estimated all-Medicare volume, national benchmarks, and what the field charges and is paid — is part of Explore.
The groups in this market that bill this code, ranked by volume, are part of a Deep Dive.
The clinicians in this market who bill this code, ranked by volume, are part of a Deep Dive.
The codes the same organizations bill alongside this one are part of a Deep Dive.
No other code in this subcategory pays within 20% of G0500.
More than 200 groups billed G0500 in 2023, so no comparison is drawn: this read is for codes with thin adoption, where a same-state comparison set is small enough to be a comparison rather than a census. The Provider groups tab lists the billers.
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