Price AtlasInteractive atlas · All states · techysurgeon.comNorthern Light Mercy Hospital: what a joint replacement costs
Portland, ME 04101 · CMS Certification Number 200008. What Medicare pays this hospital for knee, hip and shoulder replacement, what it lists, how it compares, and what a surgery center nearby is paid.
Medicare prices at Northern Light Mercy Hospital
| Operation | Inpatient avg total payment Medicare + patient share | List price | List ÷ total | Outpatient Medicare allowed |
|---|---|---|---|---|
| Hip or knee replacement | $14,614 | $72,166 | 4.9× | $12,197 |
| Shoulder replacement | — | — | — | $17,471 |
Commercial negotiated rates (beta)
| MS-DRG 470 | Median across insurers | × Medicare total payment | Lowest–highest insurer | Insurers |
|---|---|---|---|---|
| Hip or knee replacement | $46,750 | 3.2× | $40,018–$58,322 | 3 |
| Insurer | Median negotiated, MS-DRG 470 | × Medicare total payment | Plans |
|---|---|---|---|
| Cigna | $58,322 | 4.0× | 1 |
| Aetna | $46,750 | 3.2× | 1 |
| Elevance/Anthem/Empire | $40,018 | 2.7× | 1 |
From the hospital's price-transparency file (2026-04-15); commercial plans, dollar-amount contracts only.
From the hospital's price-transparency file (2026-04-15); commercial plans, dollar-amount contracts only.
Quality
Complications after hip or knee replacement: 4.5% (no different from the national rate). Readmissions: 5.5%. Overall Care Compare rating: 4 of 5 stars. Nonprofit · Acute · 230 beds
Maine requires a certificate of need for new surgery centers.
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Questions
How much does Medicare pay Northern Light Mercy Hospital for a knee or hip replacement?
In 2024 the average total payment to Northern Light Mercy Hospital for an inpatient hip or knee replacement stay was $14,614 (MS-DRG 470, 11 Medicare stays; Medicare's payment plus the patient's deductible and coinsurance), and the Medicare allowed amount averaged $12,197 per outpatient case (APC 5115, 355 cases).
What is Northern Light Mercy Hospital's list price for a joint replacement?
The hospital's average list (chargemaster) price for an inpatient hip or knee replacement was $72,166, 4.9× the average total payment for a Medicare stay. Almost nobody pays the list price; it matters for uninsured bills and percent-of-charge contracts.
Is a knee replacement cheaper at a surgery center near Northern Light Mercy Hospital?
Yes for Medicare facility payments. Oa ASC LLC, an orthopedic surgery center 2.1 mi away, is paid about $8,975 by Medicare for a knee replacement (CPT 27447), $5,639 less than an inpatient stay at Northern Light Mercy Hospital. Not every patient is a surgery-center candidate.
How does Northern Light Mercy Hospital compare with other Maine hospitals?
Northern Light Mercy Hospital's average total payment per Medicare stay is lower than 67% of the 3 Maine hospitals that report inpatient hip or knee replacement.
What do commercial insurers pay Northern Light Mercy Hospital for a hip or knee replacement?
From the hospital's own price-transparency file, commercial plans' negotiated rates for MS-DRG 470 have a median of $46,750 across 3 insurers, ranging from $40,018 to $58,322.