Mayo immunoassay tumor antigen quantitative chromogranin a at Mercy Rehabilitation Hospital St Louis

14561 N Outer 40 Rd, Chesterfield, MO · Mercy · · NPI 1811048614

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.

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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.

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

$90.35 with Medica vs $90.35 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.

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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.

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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
Medica Medica $90.35
Tricare Tricare $90.35
Ambetter Ambetter $90.35
Cigna Cigna $90.35
UMR CPD UMR CPD $90.35
Devoted Health Devoted Health $90.35
Wellcare Wellcare $90.35
Aetna Medicare Aetna Medicare $90.35
Aetna/ Managed Choice POS Elect Choice and PPO Products Aetna/ Managed Choice POS Elect Choice and PPO Products $90.35
Aetna/Commercial Product Aetna/Commercial Product $90.35
Anthem Alliance Anthem Alliance $90.35
Anthem Blue Access Anthem Blue Access $90.35
Anthem Blue Access Choice Anthem Blue Access Choice $90.35
Anthem Blue Preferred Anthem Blue Preferred $90.35
Anthem Medicare Anthem Medicare $90.35
Anthem Pathway Anthem Pathway $90.35
Cigna Medicare Advantage Cigna Medicare Advantage $90.35
Cigna PPO Cigna PPO $90.35
Essence Essence $90.35
Healthlink HMO Healthlink HMO $90.35
Healthlink PPO Healthlink PPO $90.35
Healthy Blue (Missouri Care) Healthy Blue (Missouri Care) $90.35
HomeState Health Plan HomeState Health Plan $90.35
Humana Gold Humana Gold $90.35
Medicaid MO Medicaid MO $90.35
Meritain Health CPD Meritain Health CPD $90.35
Meritain Health PPO CPD Meritain Health PPO CPD $90.35
Starmark CPD Starmark CPD $90.35
UHC All Payer UHC All Payer $90.35
UHC Exchange UHC Exchange $90.35
UHC Medicaid UHC Medicaid $90.35
UHC Medicare UHC Medicare $90.35

Visitor-reported prices

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Mayo immunoassay tumor antigen quantitative chromogranin a at other Missouri hospitals

Hospital City Cash price Negotiated range
Mercy Hospital Aurora Aurora $85.80 $20.81 – $28.84
Mercy Hospital Lincoln Troy $165.10 $20.81 – $29.48
Mercy Hospital Carthage Carthage $166.40 $18.51 – $77.06
Mercy Hospital Southeast Cape Girardeau $143.65 $18.73 – $74.75
Mercy Hospital Stoddard Dexter $86.45 $18.73 – $72.84
Mercy Orthopedic Hospital Springfield Ozark $122.85 $15.86 – $121.82
Mercy Primary Care - Bernie Bernie $38.25 $8.74 – $44.29

All Missouri hospitals for this procedure →