Acetylcholinesterase assay at Sentara Williamsburg Regional Medical Center

100 Sentara Circle, Williamsburg, VA · Sentara · · NPI 1619938149

Source: hospital's published price file ↗ · Published Apr 1, 2026 · Ingested Sep 16, 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.

Full explanation →

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

$12.29 with Bcbs vs $19.20 with Unitedhealthcare — 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 Hmo $12.29
Bcbs Anthem Exchange $12.29
Bcbs Anthem Ppo $12.29
Sentara Health Plan Medicare Managed Care Plan $12.54
Humana Medicare Managed Care Plan $12.66
Bcbs Anthem Medicare Managed Care Plan $12.87
Unitedhealthcare Dsnp Medicare Managed Care Plan $12.90
Unitedhealthcare Options Ppo $19.20
Unitedhealthcare All Commercial Plans $19.20

Visitor-reported prices

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Acetylcholinesterase assay at other Virginia hospitals

Hospital City Cash price Negotiated range
Inova Alexandria Hospital Alexandria $168.00 $12.29 – $211.38
Inova Fairfax Hospital Falls Church $168.00 $12.29 – $211.38
Inova Fair Oaks Hospital VA 22033-1709 $168.00 $12.29 – $211.38
Inova Loudoun Hospital Leesburg $168.00 $12.29 – $211.38
Inova Mount Vernon Hospital Alexandria $168.00 $12.29 – $211.38
Lonesome Pine Hospital BIG STONE GAP $19.50 $6.15 – $29.50
LEWISGALE HOSPITAL-PULASKI PULASKI $341.00 $9.44 – $13.15
LEWISGALE HOSPITAL-ALLEGHANY LOW MOOR not published $10.69 – $17.82

All Virginia hospitals for this procedure →