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Adjunctive Nonimplanted Continuous Glucose Monitor Supplies

Montana rates for HCPCS A4238

Supply allowance for adjunctive, nonimplanted continuous glucose monitor (CGM), includes all supplies and accessories, 1 month supply = 1 unit of service

Rates data updated July 2026.

How much does Adjunctive Nonimplanted Continuous Glucose Monitor Supplies cost?

$191

Typical negotiated rate. In Montana, July 2026.

Insurers have agreed to pay about $191 for this service. Most negotiated rates run $155 to $275.

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 5 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $468 · 10th to 90th $234 to $479Professionalmedian $162 · 10th to 90th $135 to $468
$100$200$500facility $468professional $162

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Professional
Modifier
Global
Typical Low
$117.49
Median
$158.49
Typical High
$257.04
Cigna
Setting
Professional
Modifier
Global
Typical Low
$162.18
Median
$162.18
Typical High
$162.18
MountainHealth Co-op
Setting
Facility
Modifier
Global
Typical Low
$467.74
Median
$467.74
Typical High
$489.78
MountainHealth Co-op
Setting
Professional
Modifier
Global
Typical Low
$467.74
Median
$467.74
Typical High
$489.78
Providence
Setting
Facility
Modifier
Global
Typical Low
$144.54
Median
$251.19
Typical High
$389.05
Providence
Setting
Professional
Modifier
Global
Typical Low
$85.11
Median
$263.03
Typical High
$281.84
United
Setting
Professional
Modifier
Global
Typical Low
$144.54
Median
$144.54
Typical High
$169.82

Where Montana sits

The same service costs 1.9 times more in Oregon than in Oklahoma. 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.

Montana· 35th of 51

$191

OR $275OK $145

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.