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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 October 2026.

How much does Darkfield Microscope Exam for Spirochetes cost?

$10.96

Typical negotiated rate. In Florida, October 2026.

Insurers have agreed to pay about $10.96 for this service. The price depends on where it is billed: about $9.33 from a physician practice, and about $20.89 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$9.33$6.76 to $13.18
FacilityA hospital or hospital-owned outpatient department$20.89$12.59 to $20.89

How much rates vary

Facilitymedian $21 · 10th to 90th $11 to $60Professionalmedian $9 · 10th to 90th $5 to $35
$5$10$20$50$100facility $21professional $9

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
$9.33
Median
$10.47
Typical High
$173.78
Aetna
Setting
Professional
Modifier
None
Typical Low
$8.71
Median
$9.77
Typical High
$10.47
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$4.37
Median
$4.90
Typical High
$5.25
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.78
Median
$1.95
Typical High
$2.09
AvMed
Setting
Facility
Modifier
None
Typical Low
$8.91
Median
$11.22
Typical High
$13.80
AvMed
Setting
Professional
Modifier
None
Typical Low
$9.12
Median
$11.22
Typical High
$15.85
Cigna
Setting
Facility
Modifier
None
Typical Low
$7.94
Median
$13.80
Typical High
$45.71
Cigna
Setting
Professional
Modifier
None
Typical Low
$6.03
Median
$11.75
Typical High
$22.91
Florida Blue
Setting
Facility
Modifier
None
Typical Low
$11.75
Median
$20.89
Typical High
$74.13
Florida Blue
Setting
Professional
Modifier
None
Typical Low
$6.76
Median
$8.71
Typical High
$15.85
Molina
Setting
Professional
Modifier
None
Typical Low
$1.70
Median
$6.76
Typical High
$8.32
United
Setting
Facility
Modifier
None
Typical Low
$11.22
Median
$11.22
Typical High
$44.67
United
Setting
Professional
Modifier
None
Typical Low
$3.98
Median
$6.76
Typical High
$54.95
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$8.32
Median
$8.32
Typical High
$11.22

Where Florida sits

The same service costs 3.5 times more in Alaska than in Kentucky. 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.

Florida· 26th of 51

$10.96

AK $25.70KY $7.24

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.