CMS Price Transparency Data

Colonoscopy (diagnostic)

Facility: Greater Baltimore Medical Center

Billing Code: 45378 (CPT)

Factual Cost Summary (Answer Capsule)

CPT Billing Code: 45378
Insurance Median: $363
Cash Discount Price: $701
vs. Medicare Baseline: 0.38x Medicare

The contracted insurance negotiated median rate for a Colonoscopy (diagnostic) at Greater Baltimore Medical Center is $363. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $701. Compared to the federal Medicare reimbursement reference rate of $950.1, this hospital’s rate is 0.38x the Medicare baseline. Located in 6701 North Charles Street, Baltimore, MD.

Cash / Self-Pay

$701

Average discount available for prompt cash payment at this facility.

Insurance Median

$363

Median negotiated contract rate across all mapped commercial carriers.

Medicare Reference Rate

$950.1

Standard federal government reimbursement rate for this code.

Visual Cost Comparison vs. Medicare

Medicare Reference Baseline: $950.1 (100%)

Cash / Self-Pay: $701 (74%)

Insurance Median: $363 (38%)

Cash: $701 (74% of Medicare)

Ins. Median: $363 (38% of Medicare)

Understanding this gauge: We use the federal Medicare rate of $950.1 as the cost baseline. Rates below the baseline represent excellent value. In-network commercial rates commonly hover around 150% - 250% of Medicare, while rates exceeding 300% are elevated. Hover over the green and blue markers to view detailed calculations.

Out-of-Pocket Cost Estimator

Estimate whether it is more economical to use your insurance or pay the upfront self-pay cash rate.

Billing Status

Remaining Deductible ($)

Your Coinsurance Rate (%)

Input your details and click calculate to compare out-of-pocket costs.

Commercial Insurance Negotiated Rates

Negotiated contract ranges established by major commercial carriers at this facility.

Carrier / Plan Group	Contract Rate Range	vs. Medicare Reference
Aetna	$299 - $456	31%
Md Physician Care [237]	$299	31%
Medicaid / KanCare	$299	31%
Priority Partners [241]	$299	31%
UnitedHealthcare	$299 - $536	31%
Wellpoint [235]	$299	31%
Alterwood Health [290]	$305	32%
Jai Medical Services [236]	$314	33%
Carefirst Maryland Health Advantage Mca [264]	$363	38%
Carefirst [201]	$363 - $692	38%
Cfchp Mco [239]	$363	38%
Cigna	$363 - $580	38%
Communicare Advantage [300]	$363	38%
Humana	$363	38%
Johns Hopkins [213]	$363 - $486	38%
Keycare Advantage [299]	$363	38%
Medicare (plans)	$363	38%
Multiplan/Phcs [296]	$363 - $471	38%
Provider Partners Health Plan [298]	$363	38%
First Health Network [268]	$471	50%
Kaiser Permanente Hmo [231]	$497 - $511	52%
Carefirst Blue Choice Hmo [253]	$546 - $637	57%
Carefirst Administrator [252]	$594 - $692	63%
Usa Managed Care Organization [301]	$653	69%

Self-Pay Upfront Cash Action Plan

Request a "Self-Pay classification" with the billing desk before receiving care.
Ask for a written "Prompt-Pay Discount" agreement quoting the price of $701.
Request and sign a "Waiver of Insurance Submission" to prevent automatic billing.
Verify CPT Code matches exactly: 45378.

Insurance In-Network Protection Plan

Contact your insurance company to confirm Greater Baltimore Medical Center is fully in-network.
Ask your insurer if "Prior Authorization" is required for CPT code 45378.
Confirm the specific physician or imaging center is also in-network (not just the hospital building).
Audit your Explanation of Benefits (EOB) against the final itemized hospital invoice.