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Chlamydia test (DNA) in Ottawa, IL costs $33 to $66. Here's every hospital's price.

3 hospitals in the Ottawa, IL metro area publish a cash price for chlamydia test (dna) (CPT 87491). We read their files every month so you don't have to.

Across the Ottawa, IL metro area, 3 hospitals list a cash price for chlamydia test (dna) (CPT 87491). The lowest is $33 at OSF Saint Clare Medical Center, the median is $52 and the highest is $66 at OSF Saint Paul Medical Center. The most expensive hospital lists 2.0 times the cheapest for the same code.

The Ottawa, IL median of $52 is 34% below the national median of $79 across 1569 US hospitals with a cash price for this code.

1 of these hospitals also publish the rates they negotiated with insurers, from $35 to $36. With insurance you pay a share of the negotiated rate, which is sometimes higher than the cash price; you may ask for the cash price instead.

The files behind these prices are dated March 2026. 1 other hospitals in the metro area have no readable price for this code: some publish no file, some block automated reading, some leave the code out. They are listed below so you can call them.

$33
lowest cash price in Ottawa, IL
OSF Saint Clare Medical Center · 15 mi
$19 below the median
$52
median cash price
3 hospitals
2.0×
highest ÷ lowest
same procedure, same metro
3/4
hospitals with a cash price
1 don't · see who

Sorted by cash price

Hospital facility fee only
1
OSF Saint Clare Medical Center

Princeton · 15 mi · File Mar 2026

$33
list $41 · lowest of 4 lines
2
OSF Saint Elizabeth Mdl Ctr

Peru · 3 mi · File Mar 2026

$52
list $87 · lowest of 7 lines
3
OSF Saint Paul Medical Center

Mendota · 14 mi · File Mar 2026

$66
list $83 · lowest of 5 lines
1

What's in the price

The hospital facility fee for CPT 87491. The doctor, anesthesia and lab work usually bill separately.

2

Cash vs. insured

Cash is what you pay without insurance. With insurance you pay a share of the negotiated rate, which can be higher than cash. You may ask for the cash price.

3

What to say on the phone

"I'd like the self-pay price for CPT 87491, in writing, and whether it covers facility, physician and anesthesia."

About chlamydia test (dna)

CPT 87491 is a nucleic-acid amplification test for Chlamydia trachomatis, the standard and most accurate test for the most common bacterial sexually transmitted infection. It uses a urine sample or a swab; results take one to three days. Routine screening is recommended yearly for sexually active women under 25 and for anyone with a new partner.

What the price covers

The laboratory test only. It is almost always ordered together with the gonorrhea test (87591), which is a separate code and a separate charge, and the visit or specimen collection is billed separately.

Why prices vary

Hospital cash prices for this single test range from around $30 to several hundred dollars. Public health clinics, Planned Parenthood, student health services and direct-to-consumer lab services usually offer combined chlamydia and gonorrhea testing for far less, sometimes free.

Questions to ask

  • What is the self-pay price for 87491, and for 87591 together?
  • Is there a collection or visit fee on top?
  • Is there a public-health or community clinic option nearby?

Hospitals in Ottawa, IL without a price for this procedure

Listed so you know who to call. The reason is what we found on their website.

Questions people ask