Ghs prostatic acid phosphatase (mayo) at CHI Memorial Hospital Chattanooga

2525 de Sales Avenue, Chattanooga, TN · CommonSpirit Health · · NPI 1255428736

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

$29.61

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.

$70.00

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.

$8.58 with United vs $49.00 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
United Medicaid|TennCare $8.58 ↓ -71%
United Commercial|Non-Options $9.66 ↓ -67%
United Commercial|Options $9.66 ↓ -67%
BCBS - ND Medicare|All Plans $10.05 ↓ -66%
Cigna Medicare|Healthspring $10.14 ↓ -66%
Humana Medicare|HMO $10.24 ↓ -65%
Amerigroup Medicare|All Plans $10.34 ↓ -65%
Humana Medicare|All Other Plans $10.63 ↓ -64%
Humana Medicare|PPO $10.63 ↓ -64%
Amerigroup Medicaid|All Plans $12.15 ↓ -59%
Employers Health Network Commercial|All Plans $14.49 ↓ -51%
Peach State Medicaid|All Plans $14.70 ↓ -50%
Centene Commercial|Ambetter Exchange $18.16 ↓ -39%
Cigna Commercial|LocalPlus $21.37 ↓ -28%
BCBS - TN Commercial|Network S $23.20 ↓ -22%
Cigna Commercial|Open Access $23.79 ↓ -20%
BCBS - TN Medicaid|BlueCare $28.34 ↓ -4%
BCBS - TN Commercial|Network P $29.26 ↓ -1%
Aetna Commercial|Non-Gatekeeper $49.00 ↑ +65%
Aetna Commercial|Gatekeeper $49.00 ↑ +65%

Visitor-reported prices

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Ghs prostatic acid phosphatase (mayo) at other Tennessee hospitals

Hospital City Cash price Negotiated range
CHI Memorial Hospital Hixson Hixson $20.72 $8.58 – $49.00
Ascension Saint Thomas Midtown Nashville not published $3.48 – $37.24
Ascension Saint Thomas DeKalb Smithville not published $6.77 – $37.24
Ascension Saint Thomas Highlands Sparta not published $6.77 – $37.24
Ascension Saint Thomas River Park McMinnville not published $6.77 – $37.24
Ascension Saint Thomas Rutherford Murfreesboro not published $8.69 – $37.24
Ascension Saint Thomas Hickman Centerville not published $8.69 – $37.24

All Tennessee hospitals for this procedure →