Potassium serum/plasma/whole blood at St. Luke's Health - Patients Medical Center

4600 E. Sam Houston Parkway South, Pasadena, TX · CommonSpirit Health · · NPI 1407990088

Source: hospital's published price file ↗ · Published Feb 28, 2026 · Ingested Sep 10, 2026

$118.34

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.

$338.10

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.

$3.80 with TCHP vs $155.25 with MultiPlan — 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
TCHP Medicaid|All Plans $3.80 ↓ -97%
CHC Medicaid|All Plans $3.80 ↓ -97%
Wellpoint Medicaid|All Plans $4.00 ↓ -97%
UNITED Medicaid|All Other Plans $4.08 ↓ -97%
KELSEY Medicare|All Plans $4.76 ↓ -96%
CIGNA-HEALTHSPRING Medicare|All Plans $4.76 ↓ -96%
BCBS Medicare|All Plans $4.76 ↓ -96%
HUMANA Medicare|All Plans $4.76 ↓ -96%
UNITED Medicare|All Plans $4.86 ↓ -96%
AETNA Medicare|All Plans $4.86 ↓ -96%
AMERIVANTAGE Medicare|All Plans $4.90 ↓ -96%
SCANHealth Medicare|All Plans $5.09 ↓ -96%
DEVOTED Medicare|All Plans $5.09 ↓ -96%
UNITED Medicaid|STAR $5.48 ↓ -95%
BCBS - TX Commercial|MyBlue Health Exchange $6.95 ↓ -94%
Wellpoint Commercial|Exchange $7.14 ↓ -94%
Ambetter Commercial|All Plans $7.14 ↓ -94%
Community Health Choice Commercial|Exchange $7.14 ↓ -94%
Bright Health Commercial|All Plans $7.85 ↓ -93%
United Commercial|Charter $8.52 ↓ -93%
United Commercial|HMO $8.52 ↓ -93%
United Commercial|Exchange $8.52 ↓ -93%
United Commercial|PPO $8.52 ↓ -93%
BCBS-TX Commercial|Exchange $9.04 ↓ -92%
Cigna Commercial|Surefit $11.58 ↓ -90%
UNITED Medicaid|STARPLUS $12.48 ↓ -89%
Cigna Commercial|HMO $12.77 ↓ -89%
BCBS-TX Commercial|Blue Premier $15.52 ↓ -87%
Cigna Commercial|PPO $17.45 ↓ -85%
BCBS-TX Commercial|HMO $20.85 ↓ -82%
BCBS-TX Commercial|PPO $24.42 ↓ -79%
Cigna Lifesource Commercial|Transplant $124.20 ↑ +5%
First Health Commercial|All Plans $134.55 ↑ +14%
Coventry Commercial|PPO $134.55 ↑ +14%
Aetna Commercial|HMO $140.76 ↑ +19%
Healthsmart Commercial|PPO $144.90 ↑ +22%
Cigna Commercial|Transplant $144.90 ↑ +22%
MultiPlan Commercial|All Plans $155.25 ↑ +31%

Visitor-reported prices

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Potassium serum/plasma/whole blood at other Texas hospitals

Hospital City Cash price Negotiated range
Adventhealth Rollins Brook Lampasas $110.74 $4.28 – $18.33
BAYLOR UNIVERSITY MEDICAL CENTER Dallas $59.87 $4.00 – $74.84
BAYLOR SCOTT & WHITE MEDICAL CENTER - BRENHAM Brenham $63.43 $6.98 – $95.14
BAYLOR SCOTT & WHITE MEDICAL CENTER - BUDA Suite 110 $59.87 $4.00 – $74.84
BAYLOR SCOTT & WHITE MEDICAL CENTER - CENTENNIAL Frisco $59.87 $4.00 – $74.84
BAYLOR SCOTT & WHITE MEDICAL CENTER - COLLEGE STATION College Station $63.43 $4.28 – $95.14
BAYLOR SCOTT & WHITE CONTINUING CARE HOSPITAL Temple $63.43 $4.00 – $95.14
BAYLOR SCOTT & WHITE EMERGENCY MEDICAL CENTER - CEDAR PARK Cedar Park $59.87 $4.00 – $89.81

All Texas hospitals for this procedure →