go back

Darkfield Microscope Exam for Spirochetes

Florida rates for HCPCS 87166

Examination of fluid or scrapings under a microscope arranged so that light strikes the sample from the side, making extremely thin corkscrew-shaped bacteria stand out bright against a dark background. It is used mainly to look for the organism that causes syphilis in fluid taken from a sore, and it can give an answer straight away.

Rates data updated July 2026.

How much does Darkfield Microscope Exam for Spirochetes cost?

$10.23

Typical negotiated rate. In Florida, July 2026.

Insurers have agreed to pay about $10.23 for this service. The price depends on where it is billed: about $9.77 from a physician practice, and about $26.92 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

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.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$9.77$9.33 to $10.47
FacilityA hospital or hospital-owned outpatient department$26.92$11.75 to $42.66

How much rates vary

Facilitymedian $27 · 10th to 90th $10 to $62Professionalmedian $10 · 10th to 90th $8 to $13
$2.0$5.0$10.0$20.0$50.0$100.0$200.0facility $27professional $10

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
Facility
Modifier
Global
Typical Low
$10.23
Median
$32.36
Typical High
$56.23
Aetna
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$9.77
Typical High
$12.59
AvMed
Setting
Facility
Modifier
Global
Typical Low
$10.00
Median
$11.22
Typical High
$13.18
AvMed
Setting
Professional
Modifier
Global
Typical Low
$9.33
Median
$11.22
Typical High
$15.85
Cigna
Setting
Facility
Modifier
Global
Typical Low
$7.94
Median
$13.80
Typical High
$32.36
Cigna
Setting
Professional
Modifier
Global
Typical Low
$6.03
Median
$11.75
Typical High
$22.91
Florida Blue
Setting
Facility
Modifier
Global
Typical Low
$11.75
Median
$20.89
Typical High
$87.10
Florida Blue
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$6.76
Typical High
$15.49
Molina
Setting
Professional
Modifier
Global
Typical Low
$1.70
Median
$6.76
Typical High
$8.32
United
Setting
Facility
Modifier
Global
Typical Low
$4.79
Median
$10.23
Typical High
$14.13
United
Setting
Professional
Modifier
Global
Typical Low
$3.98
Median
$6.61
Typical High
$15.85
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$7.76
Median
$8.32
Typical High
$11.22

Where Florida sits

The same service costs 2.4 times more in Hawaii than in Washington, DC. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Florida $10.23 · 39th of 51
HI $20.42DC $8.51

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.