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Darkfield Microscope Exam for Spirochetes

New Hampshire 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?

$16.98

Typical negotiated rate. In New Hampshire, July 2026.

Insurers have agreed to pay about $16.98 for this service. The price depends on where it is billed: about $11.22 from a physician practice, and about $36.31 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 5 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$11.22$7.41 to $20.89
FacilityA hospital or hospital-owned outpatient department$36.31$21.38 to $45.71

How much rates vary

Facilitymedian $36 · 10th to 90th $16 to $65Professionalmedian $11 · 10th to 90th $5 to $26
$5$10$20$50facility $36professional $11

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
$15.85
Median
$41.69
Typical High
$79.43
Aetna
Setting
Professional
Modifier
Global
Typical Low
$5.50
Median
$12.88
Typical High
$25.70
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$19.50
Median
$21.88
Typical High
$64.57
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$5.62
Median
$7.41
Typical High
$22.39
Cigna
Setting
Facility
Modifier
Global
Typical Low
$20.89
Median
$42.66
Typical High
$79.43
Cigna
Setting
Professional
Modifier
Global
Typical Low
$5.75
Median
$11.48
Typical High
$33.11
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$19.50
Typical High
$39.81
United
Setting
Professional
Modifier
Global
Typical Low
$4.79
Median
$7.94
Typical High
$28.18

Where New Hampshire sits

The same service costs 2.4 times more in Hawaii than in Washington, DC. 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.

New Hampshire· 6th of 51

$16.98

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.