go back

Insulin-Like Growth Factor 1 (IGF-1) Test

Colorado rates for HCPCS 84305

This blood test measures IGF-1, a substance the liver produces in response to growth hormone. Because IGF-1 levels stay more stable throughout the day than growth hormone itself, this test is a useful way to evaluate whether the body is producing too much or too little growth hormone.

Rates data updated October 2026.

How much does Insulin-Like Growth Factor 1 (IGF-1) Test cost?

$21.38

Typical negotiated rate. In Colorado, October 2026.

Insurers have agreed to pay about $21.38 for this service. The price depends on where it is billed: about $14.79 from a physician practice, and about $60.26 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$14.79$9.55 to $17.78
FacilityA hospital or hospital-owned outpatient department$60.26$37.15 to $74.13

How much rates vary

Facilitymedian $60 · 10th to 90th $16 to $98Professionalmedian $15 · 10th to 90th $9 to $36
$10$20$50$100facility $60professional $15

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
$16.22
Median
$37.15
Typical High
$74.13
Aetna
Setting
Professional
Modifier
None
Typical Low
$14.13
Median
$16.22
Typical High
$29.51
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$23.99
Median
$63.10
Typical High
$97.72
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$8.91
Median
$14.45
Typical High
$43.65
Cigna
Setting
Facility
Modifier
None
Typical Low
$12.30
Median
$25.70
Typical High
$64.57
Cigna
Setting
Professional
Modifier
None
Typical Low
$10.96
Median
$15.85
Typical High
$30.20
Denver HMP
Setting
Facility
Modifier
None
Typical Low
$16.22
Median
$22.91
Typical High
$42.66
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$30.90
Typical High
$83.18
Select Health
Setting
Facility
Modifier
None
Typical Low
$21.38
Median
$38.90
Typical High
$44.67
Select Health
Setting
Professional
Modifier
None
Typical Low
$14.79
Median
$14.79
Typical High
$21.38
United
Setting
Facility
Modifier
None
Typical Low
$25.70
Median
$25.70
Typical High
$25.70
United
Setting
Professional
Modifier
None
Typical Low
$8.91
Median
$12.59
Typical High
$15.85
2 more rates 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
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$7.94
Median
$8.13
Typical High
$10.72
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$3.16
Median
$3.24
Typical High
$4.27

Where Colorado sits

The same service costs 4.1 times more in Kansas than in Maryland. 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· 21st of 51

$21.38

KS $64.57MD $15.85

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.