Trichomonas assay w/optic at Mercy Rehabilitation Hospital South

10114 Kennerly Road St., Louis, MO · Mercy · · NPI 1992435895

Source: hospital's published price file ↗ · Published Mar 16, 2026 · Ingested Sep 8, 2026

not published by hospital

Cash price

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Discounted cash price

What a hospital charges a self-pay patient who pays directly, without going through insurance — usually well below the gross charge.

Example: A CT scan has a $3,200 gross charge but an $850 discounted cash price. Ask for it by name when scheduling — hospitals don't always advertise it up front.

Full explanation →

What you pay up front if you don't use insurance.

not published by hospital

Gross charge

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Gross charge (chargemaster price)

The hospital's full, undiscounted list price — pulled from its internal "chargemaster" price list. Almost no one actually pays this.

Example: A chest X-ray has a gross charge of $1,450. The same hospital's discounted cash price for the same X-ray is $180 — the gross charge mostly anchors negotiations, not what patients pay.

Full explanation →

The hospital's undiscounted list price — almost no one pays this.

$52.98 with Devoted Health vs $52.98 with UHC Medicare — same scan, same building. Share

Negotiated rates by payer
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Negotiated rate

The price a specific insurance plan agreed to pay the hospital for a service — it varies by insurer, and even by plan within the same insurer.

Example: The same knee MRI has a negotiated rate of $904 with one insurer's PPO plan and $1,509 with another's — identical hospital, identical scan.

Full explanation →

Payer
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Payer

The insurance company footing the bill — Aetna, UnitedHealthcare, Medicare, and so on.

Example: "Blue Cross Blue Shield" is the payer. Its negotiated rate for an MRI might be $904, while a different payer's negotiated rate for the same scan is $1,509.

Full explanation →
Plan
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Plan

The specific product an insurer sells — e.g. "Blue Cross PPO 500" — which sets your deductible, coinsurance and negotiated rates.

Example: Two people both insured by Aetna can owe very different amounts for the same MRI: $50 with an HMO plan's flat copay, or the full $1,200 toward a high-deductible PPO plan's unmet deductible.

Full explanation →
Negotiated rate vs. cash
Devoted Health Devoted Health $52.98
Wellcare Wellcare $52.98
Medica Medica $52.98
Tricare Tricare $52.98
Ambetter Ambetter $52.98
Cigna Cigna $52.98
UMR CPD UMR CPD $52.98
Aetna Medicare Aetna Medicare $52.98
Aetna/ Managed Choice POS Elect Choice and PPO Products Aetna/ Managed Choice POS Elect Choice and PPO Products $52.98
Aetna/Commercial Product Aetna/Commercial Product $52.98
Anthem Alliance Anthem Alliance $52.98
Anthem Blue Access Anthem Blue Access $52.98
Anthem Blue Access Choice Anthem Blue Access Choice $52.98
Anthem Blue Preferred Anthem Blue Preferred $52.98
Anthem Medicare Anthem Medicare $52.98
Anthem Pathway Anthem Pathway $52.98
Cigna Medicare Advantage Cigna Medicare Advantage $52.98
Cigna PPO Cigna PPO $52.98
Essence Essence $52.98
Healthlink HMO Healthlink HMO $52.98
Healthlink PPO Healthlink PPO $52.98
Healthy Blue (Missouri Care) Healthy Blue (Missouri Care) $52.98
HomeState Health Plan HomeState Health Plan $52.98
Humana Gold Humana Gold $52.98
Medicaid MO Medicaid MO $52.98
Meritain Health CPD Meritain Health CPD $52.98
Meritain Health PPO CPD Meritain Health PPO CPD $52.98
Starmark CPD Starmark CPD $52.98
UHC All Payer UHC All Payer $52.98
UHC Exchange UHC Exchange $52.98
UHC Medicaid UHC Medicaid $52.98
UHC Medicare UHC Medicare $52.98

Visitor-reported prices

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Trichomonas assay w/optic at other Missouri hospitals

Hospital City Cash price Negotiated range
Mercy Hospital Lincoln Troy $73.45 $15.29 – $21.19

All Missouri hospitals for this procedure →