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Thumb base arthritis surgery (CMC arthroplasty) in Washington: what insurers pay

Posted commercial rates at 30 Washington hospitals, each next to its own Medicare base rate.

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CPT 25447

HospitalMedian across insurers× MedicareInsurersFile date
Astria Toppenish Hospital Toppenish$3,3180.9×42026-04-01
Lourdes Medical Center Pasco$3,4350.9×52026-07-10
Shriners Hospital For Children Spokane$3,6281.0×32026-03-18
Multicare Good Samaritan Hospital Puyallup$6,3811.7×92026-08-27
Multicare Deaconess Hospital Spokane$6,8401.9×82026-08-27
Multicare Auburn Medical Center Auburn$7,8802.1×112026-08-27
Tacoma General Allenmore Hospital Tacoma$7,8802.1×112026-08-27
Multicare Covington Medical Center Covington$7,8802.1×112026-08-27
Multicare Capital Medical Center Olympia$8,4392.3×112026-08-27
Swedish Issaquah Issaquah$8,5182.2×72026-04-01
Multicare Valley Hospital Spokane$8,5652.4×92026-08-27
Mary Bridge Children'S Hospital Tacoma$8,6422.3×82026-08-27
Swedish Edmonds Hospital Edmonds$9,0322.5×72026-04-01
Providence Regional Medical Center Everett Everett$9,1472.5×72026-04-01
St Clare Hospital Lakewood$9,1732.4×92026-02-28
St Joseph Medical Center Tacoma$9,1732.4×92026-02-28
St Francis Community Hospital Federal Way$9,1732.4×92026-02-28
St Elizabeth Hospital Enumclaw$9,1732.4×72026-02-28
Overlake Hospital Medical Center Bellevue$9,3662.5×62026-04-01
Providence Holy Family Hospital Spokane$9,4102.6×62026-04-01
St Anne Hospital Burien$9,4942.5×82026-02-28
St Anthony Hospital Gig Harbor$9,5262.5×92026-02-28
Providence St Mary Medical Center Walla Walla$9,6662.6×62026-04-01
Kadlec Regional Medical Center Richland$10,1992.8×42026-04-01
Virginia Mason Medical Center Seattle$11,1322.9×72026-01-01
Swedish Medical Center / Cherry Hill Seattle$11,4573.0×72026-04-01
Swedish Medical Center Seattle$11,5653.0×72026-04-01
Legacy Salmon Creek Medical Center Vancouver$11,9043.3×72026-04-01
St Michael Medical Center Bremerton$14,0293.7×32026-02-28
Providence Centralia Hospital Centralia$16,0144.4×32026-04-01

Questions

How much do insurers pay for thumb base arthritis surgery (cmc arthroplasty) in Washington?

30 Washington hospitals post usable commercial rates for thumb base arthritis surgery (cmc arthroplasty) in their federal price-transparency files. For CPT 25447, hospital outpatient, the median across 30 hospitals is $9,173, 2.4× each hospital's local Medicare base rate. Your share depends on your plan's deductible and coinsurance; the surgeon and anesthesia bill separately.