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Adjunctive Nonimplanted Continuous Glucose Monitor Supplies

Iowa 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 October 2026.

How much does Adjunctive Nonimplanted Continuous Glucose Monitor Supplies cost?

$269

Typical negotiated rate. In Iowa, October 2026.

Insurers have agreed to pay about $269 for this service. Most negotiated rates run $158 to $309.

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 7 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $316 · 10th to 90th $269 to $631Professionalmedian $257 · 10th to 90th $145 to $427
$100$200$500$1Kfacility $316professional $257

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$239.88
Median
$239.88
Typical High
$239.88
Aetna
Setting
Professional
Modifier
None
Typical Low
$204.17
Median
$239.88
Typical High
$245.47
Cigna
Setting
Professional
Modifier
None
Typical Low
$302.00
Median
$309.03
Typical High
$371.54
Hally Health
Setting
Professional
Modifier
None
Typical Low
$151.36
Median
$676.08
Typical High
$676.08
Medica
Setting
Facility
Modifier
None
Typical Low
$302.00
Median
$354.81
Typical High
$630.96
Medica
Setting
Professional
Modifier
None
Typical Low
$144.54
Median
$245.47
Typical High
$1,412.54
Midlands
Setting
Professional
Modifier
None
Typical Low
$309.03
Median
$309.03
Typical High
$363.08
Midlands
Setting
Professional
Modifier
None
Typical Low
$323.59
Median
$436.52
Typical High
$1,047.13
United
Setting
Professional
Modifier
None
Typical Low
$144.54
Median
$144.54
Typical High
$251.19
Wellmark
Setting
Professional
Modifier
None
Typical Low
$281.84
Median
$281.84
Typical High
$281.84

Where Iowa sits

The same service costs 2.1 times more in Montana than in Hawaii. 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.

Iowa· 4th of 51

$269

MT $282HI $135

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.