Posted Price

Total knee replacement at St. Mary Medical Center

CPT 27447 · Langhorne, PA

Cash price$38,707.92
Gross chargenot posted
Insurer rates$28.22 – $37,425.54

These are St. Mary Medical Center's own posted figures from its standard-charges file dated March 31, 2026. They are not a quote. Source: the hospital's file · its price transparency page.

Across 5 Pennsylvania hospitals we index that post a cash price for this service: lowest $13,125.00, median $15,086.26, highest $50,158.09. See every hospital.

Nearby hospitals, same service

HospitalDistanceCash priceGross chargeFile date
Robert Wood Johnson University Hospital at Hamilton
Hamilton, NJ
13.7 mi$5,110.002026-03-05
Jefferson Einstein Philadelphia Hospital
Philadelphia, PA
15.8 mi$15,086.262026-09-15
Roxborough Memorial Hospital
Philadelphia, PA
19.1 mi$13,125.00$13,113.002026-09-01
Jefferson Einstein Montgomery Hospital
East Norriton, PA
24.7 mi$15,086.262026-09-15
Mercy Catholic Medical Center- Mercy Fitzgerald
Darby, PA
26.1 mi$50,158.092026-03-31
Robert Wood Johnson University Hospital - Somerset
Somerville, NJ
30.7 mi$6,311.002026-03-04
Robert Wood Johnson University Hospital
New Brunswick, NJ
32.4 mi$5,741.002026-03-04
Centrastate Medical Center
Freehold, NJ
33.2 mi$16,498.96$33,052.032026-01-01

Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.

Every row for CPT 27447 in this hospital's file

Row in the hospital's fileSettingCashGrossInsurer min – max
HC Arthro Knee/Condyle/Plateau Med/Lat W/or W/O Patella Resurf (Tka) Lt(Rest Method II CAH)
line 3127152
outpatient$38,707.92$28.22 – $37,425.54
PR Arthroplasty Knee Condyle&Plateau Med/Lat Cpts W/WO Patella Resurfacing|BILATERAL PROCEDURE mod 50
line 3070493
both$5,642.00$5,642.00$32.50 – $5,359.90
PR Arthroplasty Knee Condyle&Plateau Med/Lat Cpts W/WO Patella Resurfacing|BILATERAL PROCEDURE|ASSISTANT AT SURGERY SERVICE mod 50|AS
line 3070494
both$902.72$902.72$32.50 – $5,359.90
PR Arthroplasty Knee Condyle&Plateau Med/Lat Cpts W/WO Patella Resurfacing|MULTIPLE PROCEDURES mod 51
line 3070514
both$2,821.00$2,821.00$32.50 – $5,359.90
PR Arthroplasty Knee Condyle&Plateau Med/Lat Cpts W/WO Patella Resurfacing|ASSISTANT SURGEON mod 80
line 3070515
both$451.36$451.36$32.50 – $5,359.90
PR Arthroplasty Knee Condyle&Plateau Med/Lat Cpts W/WO Patella Resurfacing|ASSISTANT AT SURGERY SERVICE mod AS
line 3070521
both$451.36$451.36$32.50 – $5,359.90
PR Arthroplasty Knee Condyle&Plateau Med/Lat Cpts W/WO Patella Resurfacing|ASSISTANT AT SURGERY SERVICE|BILATERAL PROCEDURE mod AS|50
line 3070541
both$902.72$902.72$32.50 – $5,359.90

The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.

Check a bill from this hospital All St. Mary Medical Center prices