Arthrocentesis aspir+/injection small jt/bursa with Ultrasound 20604 at SSM Health St. Joseph Hospital- Wentzville

500 Medical Drive, Wentzville, MO · SSM Health · · NPI 1851833305

Source: hospital's published price file ↗ · Published Apr 1, 2026 · Ingested Sep 10, 2026

$1,581.80

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.

$2,876.00

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.

$49.07 with BCBS vs $2,414.00 with Aetna — 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
BCBS Anthem Pathway Exchange $49.07 ↓ -97%
BCBS Anthem Blue Access Choice PPO $50.42 ↓ -97%
BCBS Anthem Blue Preferred HMO/POS $50.66 ↓ -97%
BCBS Anthem Blue Access PPO $54.64 ↓ -97%
Cigna OAP Other Commercial Plan $279.00 ↓ -82%
UnitedHealthCare St. Louis University Employee $541.00 ↓ -66%
UnitedHealthCare All Commercial Plans $719.00 ↓ -55%
UnitedHealthCare Options PPO $932.00 ↓ -41%
Healthlink Employers Choice All Commercial Plans $1,216.00 ↓ -23%
Aetna Carelink Other Commercial Plan $1,444.00 ↓ -9%
Healthlink HMO $2,024.00 ↑ +28%
Aetna NBD Other Commercial Plan $2,131.00 ↑ +35%
Ambetter Exchange $2,167.00 ↑ +37%
Aetna All Commercial Plans $2,414.00 ↑ +53%

Visitor-reported prices

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Arthrocentesis aspir+/injection small jt/bursa with Ultrasound 20604 at other Missouri hospitals

Hospital City Cash price Negotiated range
SSM Health St. Joseph Hospital - Lake Saint Louis Lake Saint Louis $1,581.80 $49.07 – $2,167.00
SSM Health DePaul Hospital - St. Louis Bridgeton $1,581.80 $49.07 – $2,167.00
SSM Health Saint Louis University Hospital Saint Louis $852.50 $56.35 – $1,632.00
SSM Health St. Joseph Hospital - St. Charles Saint Charles $1,581.80 $49.07 – $2,167.00
SSM Health St. Mary's Hospital - St. Louis Richmond Heights $1,581.80 $49.07 – $2,167.00
SSM Health St. Mary's Hospital - Jefferson City Jefferson City $62.57 $305.76 – $2,277.00
Mercy Hospital Aurora Aurora $240.50 $38.90 – $387.54
Mercy Hospital Lincoln Troy $245.05 $251.65 – $387.54

All Missouri hospitals for this procedure →