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Adjunctive Nonimplanted Continuous Glucose Monitor Supplies

Washington, DC 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.

Facilitymedian $224 · 10th–90th $224$2240%50%100%$224Professionalmedian $200 · 10th–90th $145$2400%20%10th90th$200$100.0$200.0$500.0

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Small sample; interpret with caution. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$223.87
Median
$223.87
Typical High
$223.87
Aetna
Setting
Professional
Modifier
Global
Typical Low
$144.54
Median
$223.87
Typical High
$234.42
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$213.80
Median
$213.80
Typical High
$213.80
Cigna
Setting
Professional
Modifier
Global
Typical Low
$162.18
Median
$162.18
Typical High
$162.18
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$309.03
Median
$323.59
Typical High
$616.60
United
Setting
Professional
Modifier
Global
Typical Low
$95.50
Median
$151.36
Typical High
$251.19