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Partial knee replacement in Seattle-Tacoma WA

Every commercial insurer rate these hospitals posted, as a dollar amount and as a multiple of the hospital's own Medicare base rate.

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CPT 27446

Hospital · insurer	Rate	× Medicare	Plans
Overlake Hospital Medical Center median $35,533 · local Medicare $14,909 · file 2026-04-01
Aetna	$39,249	2.6×	1
Cigna	$8,461	0.6×	2
Kaiser Permanente	$39,210	2.6×	1
Premera Blue Cross	$35,533	2.4×	5
UnitedHealthcare	$27,557	1.8×	2
St Clare Hospital median $44,042 · local Medicare $14,984 · file 2026-02-28
Aetna	$59,356	4.0×	2
Kaiser Permanente	$35,503	2.4×	2
Premera Blue Cross	$44,042	2.9×	1
Regence BlueShield	$37,297	2.5×	1
UnitedHealthcare	$48,442	3.2×	3
St Anthony Hospital median $44,042 · local Medicare $14,984 · file 2026-02-28
Aetna	$59,356	4.0×	2
Kaiser Permanente	$35,503	2.4×	2
Premera Blue Cross	$44,042	2.9×	1
Regence BlueShield	$38,734	2.6×	1
UnitedHealthcare	$48,442	3.2×	3
Swedish Medical Center median $46,893 · local Medicare $14,909 · file 2026-04-01
Aetna	$46,762	3.1×	2
Kaiser Permanente	$22,301	1.5×	1
Premera Blue Cross	$47,024	3.2×	5
UnitedHealthcare	$56,198	3.8×	2
Tacoma General Allenmore Hospital median $60,028 · local Medicare $14,984 · file 2026-08-27
Aetna	$60,028	4.0×	1
Cigna	$61,629	4.1×	1
Kaiser Permanente	$60,413	4.0×	1
Premera Blue Cross	$49,169	3.3×	4
Regence BlueShield	$43,826	2.9×	4
Multicare Good Samaritan Hospital median $60,220 · local Medicare $14,984 · file 2026-08-27
Aetna	$60,028	4.0×	1
Cigna	$61,629	4.1×	1
Kaiser Permanente	$60,413	4.0×	1
Premera Blue Cross	$49,169	3.3×	4

MS-DRG 470

Hospital · insurer	Rate	× Medicare	Plans
Overlake Hospital Medical Center median $37,990 · local Medicare $16,146 · file 2026-04-01
Aetna	$34,334	2.1×	1
Cigna	$37,990	2.4×	3
Kaiser Permanente	$38,238	2.4×	1
MultiPlan/PHCS (rental network)	$35,058	2.2×	2
Premera Blue Cross	$37,144	2.3×	4
UnitedHealthcare	$51,887	3.2×	1
Swedish Edmonds Hospital median $38,767 · local Medicare $15,438 · file 2026-04-01
Aetna	$34,084	2.2×	1
Cigna	$53,505	3.5×	1
Kaiser Permanente	$25,908	1.7×	1
Premera Blue Cross	$38,767	2.5×	2
UnitedHealthcare	$45,610	3.0×	2
St Anne Hospital median $41,246 · local Medicare $16,146 · file 2026-02-28
Aetna	$41,246	2.6×	2
Cigna	$36,315	2.2×	1
Premera Blue Cross	$27,242	1.7×	1
Regence BlueShield	$46,608	2.9×	1
UnitedHealthcare	$45,459	2.8×	2
St Clare Hospital median $42,697 · local Medicare $16,234 · file 2026-02-28
Aetna	$41,901	2.6×	3
Cigna	$36,315	2.2×	1
Kaiser Permanente	$39,897	2.5×	2
Premera Blue Cross	$43,493	2.7×	1
Regence BlueShield	$46,608	2.9×	1
UnitedHealthcare	$44,675	2.8×	3
St Anthony Hospital median $42,697 · local Medicare $16,234 · file 2026-02-28
Aetna	$41,901	2.6×	3
Cigna	$36,315	2.2×	1
Kaiser Permanente	$39,897	2.5×	2
Premera Blue Cross	$43,493	2.7×	1
Regence BlueShield	$51,677	3.2×	1
UnitedHealthcare	$44,675	2.8×	3
St Joseph Medical Center median $42,697 · local Medicare $16,234 · file 2026-02-28
Aetna	$41,901	2.6×	3
Cigna	$36,315	2.2×	1
Kaiser Permanente	$39,897	2.5×	2
Premera Blue Cross	$43,493	2.7×	1
Regence BlueShield	$46,608	2.9×	1
UnitedHealthcare	$44,675	2.8×	3
St Francis Community Hospital median $42,697 · local Medicare $16,146 · file 2026-02-28
Aetna	$41,901	2.6×	3
Cigna	$36,315	2.2×	1
Kaiser Permanente	$39,897	2.5×	2
Premera Blue Cross	$43,493	2.7×	1
Regence BlueShield	$46,608	2.9×	1
UnitedHealthcare	$44,675	2.8×	3
Multicare Good Samaritan Hospital median $42,948 · local Medicare $16,234 · file 2026-08-27
Aetna	$49,226	3.0×	1
Cigna	$42,899	2.6×	1
Kaiser Permanente	$42,997	2.6×	1
Premera Blue Cross	$35,161	2.2×	4
Regence BlueShield	$41,545	2.6×	4
UnitedHealthcare	$51,887	3.2×	1
Tacoma General Allenmore Hospital median $42,948 · local Medicare $16,234 · file 2026-08-27
Aetna	$49,226	3.0×	1
Cigna	$42,899	2.6×	1
Kaiser Permanente	$42,997	2.6×	1
Premera Blue Cross	$35,161	2.2×	4
Regence BlueShield	$41,063	2.5×	4
UnitedHealthcare	$51,887	3.2×	1
Multicare Auburn Medical Center median $42,948 · local Medicare $16,146 · file 2026-08-27
Aetna	$49,226	3.0×	1
Cigna	$42,899	2.7×	1
Kaiser Permanente	$42,997	2.7×	1
Premera Blue Cross	$35,161	2.2×	4
Regence BlueShield	$41,063	2.5×	4
UnitedHealthcare	$51,887	3.2×	1
Multicare Covington Medical Center median $42,948 · local Medicare $16,146 · file 2026-08-27
Aetna	$49,226	3.0×	1
Cigna	$42,899	2.7×	1
Kaiser Permanente	$42,997	2.7×	1
Premera Blue Cross	$35,161	2.2×	4
Regence BlueShield	$41,063	2.5×	4
UnitedHealthcare	$51,887	3.2×	1
Swedish Issaquah median $45,478 · local Medicare $16,146 · file 2026-04-01
Cigna	$53,505	3.3×	1
Kaiser Permanente	$25,739	1.6×	1
Premera Blue Cross	$38,275	2.4×	2
UnitedHealthcare	$52,682	3.3×	2
Swedish Medical Center median $52,682 · local Medicare $16,146 · file 2026-04-01
Aetna	$21,974	1.4×	2
Cigna	$53,505	3.3×	1
Kaiser Permanente	$29,282	1.8×	1
Premera Blue Cross	$65,349	4.0×	5
UnitedHealthcare	$52,682	3.3×	2
Swedish Medical Center / Cherry Hill median $52,682 · local Medicare $16,146 · file 2026-04-01
Aetna	$21,974	1.4×	2
Cigna	$53,505	3.3×	1
Kaiser Permanente	$29,594	1.8×	1
Premera Blue Cross	$55,358	3.4×	2
UnitedHealthcare	$52,682	3.3×	2

Questions

How much does partial knee replacement cost with commercial insurance in Seattle-Tacoma WA?

6 Seattle-Tacoma WA hospitals post usable commercial rates for CPT 27446, hospital outpatient. The median across hospitals is $45,468; hospital medians range from $35,533 to $60,220. Your cost depends on your plan's deductible and coinsurance.