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Maine: one knee, three prices

What Medicare pays Maine hospitals and surgery centers for knee, hip and shoulder replacement, what hospitals list, and which cost the most and the least.

Surgery center
$8,975
Median Medicare knee rate, 3 orthopedic surgery centers
Hospital, same day
$12,042
Median outpatient allowed
Hospital, overnight
$18,640
Median inpatient paid, 3 hospitals

Maine requires a certificate of need for new surgery centers.

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Lowest Medicare payment

HospitalCityInpatient paidList priceOutpatient
Northern Light Mercy HospitalPortland$14,614$72,166$12,197
Mainehealth Maine Medical CenterPortland$18,640$86,988$12,212
Mainegeneral Medical CenterAugusta$19,194$59,999$12,731

Highest Medicare payment

HospitalCityInpatient paidList priceOutpatient
Mainegeneral Medical CenterAugusta$19,194$59,999$12,731
Mainehealth Maine Medical CenterPortland$18,640$86,988$12,212
Northern Light Mercy HospitalPortland$14,614$72,166$12,197

Every Maine hospital (14)

Orthopedic surgery centers (3)

Questions

How much does Medicare pay for a knee replacement in Maine?

In 2024 Medicare paid Maine hospitals a median $18,640 per inpatient hip or knee replacement stay (MS-DRG 470, 3 hospitals) and a median $12,042 per outpatient case. An orthopedic surgery center is paid about $8,975 for a knee.

Which Maine hospitals does Medicare pay least for a joint replacement?

Northern Light Mercy Hospital ($14,614), Mainehealth Maine Medical Center ($18,640), Mainegeneral Medical Center ($19,194).

What do Maine hospitals list for a joint replacement?

The median list (chargemaster) price is $72,166, about 3.9× what Medicare pays.

Does Maine have a certificate-of-need law?

Maine requires a certificate of need for new surgery centers. CON covers new health care facilities including ambulatory surgical facilities above a capital cost threshold, which a 2026 law (LD 1890) raised and indexed to inflation.