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St Charles Hospital: what a joint replacement costs

Port Jefferson, NY 11777 · CMS Certification Number 330246. 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.

Surgery center nearby
$10,559
Precisioncare Surgery Center, 2.6 mi
Outpatient here
$14,443
Medicare allowed amount, 284 cases, APC 5115
Inpatient here
$17,430
Avg total payment (incl. patient share), 51 Medicare stays, MS-DRG 470

Medicare prices at St Charles Hospital

OperationInpatient avg total payment
Medicare + patient share
List priceList ÷ totalOutpatient Medicare allowed
Hip or knee replacement$17,430$79,8814.6×$14,443
Shoulder replacement———$20,762

Commercial negotiated rates (beta)

MS-DRG 470Median across insurers× Medicare total paymentLowest–highest insurerInsurers
Hip or knee replacement$16,7741.0×$12,009–$44,77015
InsurerMedian negotiated, MS-DRG 470× Medicare total paymentPlans
Rx Internal$44,7702.6×1
Elevance/Anthem/Empire$40,1272.3×1
Regence BlueShield$40,1272.3×1
Moda$33,5481.9×1
Providence Health Plan$33,5481.9×1
Kaiser Permanente$21,5201.2×1
Law Enforcement$16,7741.0×1
Otj Dept Of Labor Federal Emp$16,7741.0×1
Otj Us Department Of Labor$16,7741.0×1
Pacificsource Community Solutions$13,3020.8×1
Health Share$12,0090.7×1
Health Share Care Oregon$12,0090.7×1
Health Share Ohsu Ohp$12,0090.7×1
Health Share Providence$12,0090.7×1
Health Share Tuality$12,0090.7×1

From the hospital's price-transparency file (2026-04-01); commercial plans, dollar-amount contracts only.

From the hospital's price-transparency file (2026-04-01); commercial plans, dollar-amount contracts only.

Quality

Complications after hip or knee replacement: 3% (no different from the national rate). Readmissions: 4.9%. Overall Care Compare rating: 5 of 5 stars. Nonprofit · Acute · 231 beds

New York requires a certificate of need for new surgery centers.

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Questions

How much does Medicare pay St Charles Hospital for a knee or hip replacement?

In 2024 the average total payment to St Charles Hospital for an inpatient hip or knee replacement stay was $17,430 (MS-DRG 470, 51 Medicare stays; Medicare's payment plus the patient's deductible and coinsurance), and the Medicare allowed amount averaged $14,443 per outpatient case (APC 5115, 284 cases).

What is St Charles Hospital's list price for a joint replacement?

The hospital's average list (chargemaster) price for an inpatient hip or knee replacement was $79,881, 4.6× 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 St Charles Hospital?

Yes for Medicare facility payments. Precisioncare Surgery Center, an orthopedic surgery center 2.6 mi away, is paid about $10,559 by Medicare for a knee replacement (CPT 27447), $6,871 less than an inpatient stay at St Charles Hospital. Not every patient is a surgery-center candidate.

How does St Charles Hospital compare with other New York hospitals?

St Charles Hospital's average total payment per Medicare stay is lower than 73% of the 56 New York hospitals that report inpatient hip or knee replacement.

What do commercial insurers pay St Charles 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 $16,774 across 15 insurers, ranging from $12,009 to $44,770.