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Adjunctive Nonimplanted Continuous Glucose Monitor Supplies

Colorado 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?

$145

Typical negotiated rate. In Colorado, October 2026.

Insurers have agreed to pay about $145 for this service. The price depends on where it is billed: about $145 from a physician practice, and about $174 from a hospital or other facility.

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.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$145$120 to $162
FacilityA hospital or hospital-owned outpatient department$174$120 to $282

How much rates vary

Facilitymedian $174 · 10th to 90th $120 to $525Professionalmedian $145 · 10th to 90th $120 to $240
$100$200$500facility $174professional $145

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
Aetna
Setting
Facility
Modifier
None
Typical Low
$120.23
Median
$120.23
Typical High
$120.23
Aetna
Setting
Professional
Modifier
None
Typical Low
$120.23
Median
$120.23
Typical High
$204.17
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$263.03
Median
$371.54
Typical High
$371.54
Cigna
Setting
Professional
Modifier
None
Typical Low
$162.18
Median
$162.18
Typical High
$162.18
Denver HMP
Setting
Facility
Modifier
None
Typical Low
$120.23
Median
$173.78
Typical High
$316.23
Denver HMP
Setting
Professional
Modifier
None
Typical Low
$281.84
Median
$281.84
Typical High
$281.84
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$154.88
Median
$346.74
Typical High
$724.44
Select Health
Setting
Facility
Modifier
None
Typical Low
$524.81
Median
$562.34
Typical High
$588.84
Select Health
Setting
Professional
Modifier
None
Typical Low
$245.47
Median
$275.42
Typical High
$489.78
United
Setting
Professional
Modifier
None
Typical Low
$144.54
Median
$144.54
Typical High
$239.88
1 more rate with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Kaiser Permanente
Setting
Professional
Modifier
KF · Class III device
Typical Low
$281.84
Median
$371.54
Typical High
$537.03

Where Colorado 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.

Colorado· 49th of 51

$145

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.