Posted Price

Chlamydia test (DNA/NAAT) at Northwestern Lake Forest Hospital

CPT 87491 · Lake Forest, IL

Cash price$275.10
Gross charge$393.00
Insurer rates$65.24 – $393.00

These are Northwestern Lake Forest Hospital's own posted figures from its standard-charges file dated April 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.

Across 40 Illinois hospitals we index that post a cash price for this service: lowest $35.00, median $180.00, highest $581.16. See every hospital.

Nearby hospitals, same service

HospitalDistanceCash priceGross chargeFile date
Advocate Condell Medical Center
Libertyville, IL
5.7 mi$180.00$360.002025-11-04
Advocate Lutheran General Hospital
Park Ridge, IL
15.4 mi$180.00$360.002025-11-04
Advocate Good Shepherd Hospital
Barrington, IL
16.6 mi$180.00$360.002025-11-04
Saint Francis Hospital-Evanston
Evanston, IL
17.0 mi$35.00$159.002026-09-01
Swedish Hospital
Chicago, IL
20.0 mi$183.00$183.002026-04-01
Community First Medical Center
Chicago, IL
20.2 mi$123.13$246.252026-04-01
Louis A Weiss Memorial Hospital
Chicago, IL
20.9 mi$120.74$355.132025-03-17
Northwestern Medicine McHenry
McHenry, IL
22.8 mi$275.10$393.002026-04-01

Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.

Every row for CPT 87491 in this hospital's file

Row in the hospital's fileSettingCashGrossInsurer min – max
HB Chlamydia Trachomatis, Pcr
standard_charge_information[55160]
outpatient$275.10$393.00$65.24 – $393.00
HB Ref CT, Ng, Mycoplasma Profile, Chlamydia Trachomatis Dna Amp Probe (Lc)
standard_charge_information[1534]
outpatient$144.20$206.00$34.20 – $206.00
HB Ref Chlamydia Trachomatis, Conjunctival Swab, Naa
standard_charge_information[17741]
outpatient$133.70$191.00$31.71 – $191.00
HB Ref Chlamydia Trachomatis, Naa (Lc)
standard_charge_information[17742]
outpatient$151.90$217.00$36.02 – $217.00
HB Ref Chlamydia Trachomatis, Pcr
standard_charge_information[17743]
outpatient$212.80$304.00$50.46 – $304.00
HB Ref Chlamydia/Neisseria Gonrrhoeae Rna, Tma Rectal, Chlmyd Trach (Q)
standard_charge_information[28476]
outpatient$151.90$217.00$36.02 – $217.00
HB Ref Sexually Transmitted Infections (Sti) Profile, Chlmyd Trach Dna Amp Probe (Lc)
standard_charge_information[50330]
outpatient$151.90$217.00$36.02 – $217.00

The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.

Check a bill from this hospital All Northwestern Lake Forest Hospital prices