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Phenothiazine Assay

California rates for HCPCS G6057

Assay of phenothiazine

Rates data updated October 2026.

How much does Phenothiazine Assay cost?

$26.92

Typical negotiated rate. In California, October 2026.

Insurers have agreed to pay about $26.92 for this service. Most negotiated rates run $21.38 to $26.92.

Few insurers publish rates for this combination, so treat this figure as a rough guide.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 3 insurance carriers under federal price transparency rules.

How much rates vary

Professionalmedian $27 · 10th to 90th $21 to $27
$20$50$100$200professional $27

Distribution of negotiated rates across all payers (price axis is log-scale). Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Cigna
Setting
Professional
Modifier
None
Typical Low
$21.38
Median
$21.38
Typical High
$26.92
Contra Costa Health
Setting
Professional
Modifier
None
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$407.38
Median
$407.38
Typical High
$407.38

Where California sits

The same service costs 4.2 times more in Arizona than in Rhode Island. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

California· 14th of 50

$26.92

AZ $89.13RI $21.38

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.