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Partial knee replacement in Washington: what insurers pay

Posted commercial rates at 15 Washington hospitals, each next to its own Medicare base rate.

Open in the explorerAll statesEvery bill for the whole procedure

CPT 27446

HospitalMedian across insurers× MedicareInsurersFile date
Overlake Hospital Medical Center Bellevue$35,5332.4×52026-04-01
St Clare Hospital Lakewood$44,0422.9×52026-02-28
St Anthony Hospital Gig Harbor$44,0422.9×52026-02-28
Swedish Medical Center Seattle$46,8933.1×42026-04-01
Tacoma General Allenmore Hospital Tacoma$60,0284.0×52026-08-27
Multicare Good Samaritan Hospital Puyallup$60,2204.0×42026-08-27

MS-DRG 470

HospitalMedian across insurers× MedicareInsurersFile date
Overlake Hospital Medical Center Bellevue$37,9902.4×62026-04-01
Swedish Edmonds Hospital Edmonds$38,7672.5×52026-04-01
St Anne Hospital Burien$41,2462.5×52026-02-28
Legacy Salmon Creek Medical Center Vancouver$41,4002.7×42026-04-01
St Clare Hospital Lakewood$42,6972.6×62026-02-28
St Anthony Hospital Gig Harbor$42,6972.6×62026-02-28
St Joseph Medical Center Tacoma$42,6972.6×62026-02-28
St Francis Community Hospital Federal Way$42,6972.6×62026-02-28
Multicare Good Samaritan Hospital Puyallup$42,9482.6×62026-08-27
Tacoma General Allenmore Hospital Tacoma$42,9482.6×62026-08-27
Multicare Auburn Medical Center Auburn$42,9482.7×62026-08-27
Multicare Covington Medical Center Covington$42,9482.7×62026-08-27
Swedish Issaquah Issaquah$45,4782.8×42026-04-01
Swedish Medical Center Seattle$52,6823.3×52026-04-01
Swedish Medical Center / Cherry Hill Seattle$52,6823.3×52026-04-01

Questions

How much do insurers pay for partial knee replacement in Washington?

15 Washington hospitals post usable commercial rates for partial knee replacement in their federal price-transparency files. For CPT 27446, hospital outpatient, the median across 6 hospitals is $45,468, 3.0× each hospital's local Medicare base rate. Your share depends on your plan's deductible and coinsurance; the surgeon and anesthesia bill separately.