CostKits Take Control of Your Healthcare Spending

Knee Replacement Cost in Washington (2026 Price Guide)

What does a knee replacement cost in Washington?

You could pay $2,341 or $5,880 for the same knee replacement in Washington — depending entirely on which facility you choose. The median cash price across 49 reporting hospitals is $2,859. This data comes directly from hospital price transparency files published under federal law.

How prices are distributed across Washington hospitals:
  • Bottom 25% of hospitals: under $2,281
  • Median: $2,859
  • Above median (top 30%): $5,880+

That's a 3× spread for the same procedure — driven entirely by which facility you choose, not by clinical complexity.

Example — two patients in Seattle:
  • Patient A (high-cost facility): ~$5,880
  • Patient B (lower-cost facility): ~$2,341
Same procedure. Same week. $3,539 difference.

Cheapest Knee Replacement Providers in Washington

Based on declared cash/self-pay prices from CMS hospital price transparency files.

# Facility City Price vs Median
6 Providence Health And Services - Washington Chewelah, WA $2,177 -$682
7 Providence Health And Services - Washington Colville, WA $2,177 -$682
8 Harborview Medical Center Seattle, WA $2,198 -$661
9 Columbia Basin Hospital Ephrata, WA $2,213 -$646
10 Swedish Health Services Issaquah, WA $2,239 -$620
11 Swedish Health Services Seattle, WA $2,239 -$620
12 Providence Health And Services - Washington Walla Walla, WA $2,245 -$614
13 Providence Health And Services - Washington Spokane, WA $2,281 -$578

Prices are declared self-pay rates. Contact each facility for a formal quote before scheduling.

The facility you choose matters more than almost anything else — the same procedure, same quality, same state can cost 5× more at one hospital versus the one down the road.

Compare all procedure costs   → Knee Replacement costs nationwide

Check YOUR hospital's pricing → Estimate YOUR exact cost →

Worth knowing: A small number of hospitals report very high prices above $19,361, which pulls the overall range wider than what most patients encounter. The typical range above is a better guide for planning.
Every hospital in this dataset offers a cash price — with a median of $3,255. If your deductible hasn't been met, always ask for the self-pay rate before scheduling.

What you'll actually pay — example scenarios

Your situation Estimated out-of-pocket
Deductible not yet met (pay in full) ~$2,859
Deductible met — 20% coinsurance ~$572
Out-of-network provider $6,290+

Based on the state median of $2,859. Your actual cost depends on your plan deductible, coinsurance rate, and network tier. Get YOUR personalized estimate →

What this means for you

If you haven't met your deductible, you are effectively a cash-pay patient.

That means:

  • You should shop prices directly — the same way you'd compare any major purchase
  • Insurance may not get you a better deal than the cash price
  • The cheapest facility can save you $2,819+ vs. the median.

This is the single biggest lever most patients have to reduce their cost.

Lower-cost options in Washington start around $2,281 or below. Most hospitals cluster between $2,281 and $9,113. A smaller group reports prices above that — often academic medical centers or high-cost markets.

If you're comparing specific hospitals, the lowest self-pay rates reported in this dataset include: Mid-Valley Hospital in Omak (cash price from $2,018); Kadlec Regional Medical Center in Richland (cash price from $2,121); Providence Health And Services - Washington in Chewelah (cash price from $2,177). These are declared cash prices — contact each facility for a formal quote before scheduling.

Where knee replacement costs vary in Washington

Each pin represents a hospital that filed price transparency data. Green pins are below the state cash-price average; red are above. Click any pin for facility name and price details.

Below state avg Above state avg Click a pin for facility details.

Estimate YOUR exact out-of-pocket cost →

Quick decision guide:
  • Best value hospitals (lowest prices): ISLAND HOSPITAL: $40; Astria Sunnyside Hospital: $181; Coulee Medical Center: $507
  • Most expensive: Alliance for South Sound Health: ~$36,802; PeaceHealth St John Medical Center: ~$32,816

→ Choosing the right facility can save $2,819+ vs. the state median.

Washington Knee Replacement prices by facility

All prices below come from hospital chargemasters — the official price lists each hospital must publish under federal law. Gross charge is the undiscounted list price; cash price is the self-pay rate; negotiated range covers the spread across insurance contracts.

How we calculate "Your Price" — We prioritize the most actionable price in this order:
  1. Cash price — the self-pay rate you can actually negotiate and pay
  2. Negotiated rate — if reported by the hospital across insurance contracts
  3. Gross charge — fallback only; this is the inflated list price few people pay

This reflects the real prices patients encounter — not inflated chargemaster rates.

# Facility City Your Price vs Median Gross Charge
#1 ISLAND HOSPITAL WA $40 -$2,819 $588
#2 Astria Sunnyside Hospital WA $181 -$2,678 $824–$1,966
#3 Coulee Medical Center Grand Coulee, WA $507 -$2,352 $507–$1,006
#4 Mid-Valley Hospital Omak, WA $2,018 -$841 $507–$45,008
#5 Kadlec Regional Medical Center Richland, WA $2,121 -$738 $1,361–$4,013
#6 Providence Health And Services - Washington Chewelah, WA $2,177 -$682 $3,110–$3,701
#7 Providence Health And Services - Washington Colville, WA $2,177 -$682 $3,110–$3,701
#8 Harborview Medical Center Seattle, WA $2,198 -$661 $540–$3,140
#9 Columbia Basin Hospital Ephrata, WA $2,213 -$646 $795–$2,348
#10 Swedish Health Services Issaquah, WA $2,239 -$620 $2,144–$7,277
#11 Swedish Health Services Seattle, WA $2,239 -$620 $2,144–$7,277
#12 Providence Health And Services - Washington Walla Walla, WA $2,245 -$614 $3,207–$11,662
#13 Providence Health And Services - Washington Spokane, WA $2,281 -$578 $2,985–$7,132
#14 Providence Health And Services - Washington Spokane, WA $2,281 -$578 $3,259–$12,967
#15 Jefferson Healthcare Medical Center WA $2,330 -$529 $2,913–$4,029
▼ Show 34 more Washington hospitals
#16 Odessa Memorial Healthcare Center Odessa, WA $2,358 -$501 $1,063–$2,358
#17 Swedish Edmonds Edmonds, WA $2,363 -$496 $3,294–$5,816
#18 Clallam County Public Hospital District #2 dba Olympic Medical Center Port Angeles, WA $2,408 -$451 $3,010–$6,578
#19 Whidbey Island Public Hospital District  WA $2,502 -$357 $2,502–$3,954
#20 Kittitas Valley Healthcare WA $2,571 -$288 $3,025–$4,610
#21 Legacy Salmon Creek Medical Center Vancouver, WA $2,588 -$271 $1,394–$49,166
#22 Grant County Public Hospital District 1 Moses Lake, WA $2,618 -$241 $1,436–$6,000
#23 Three Rivers Hospital Brewester, WA $2,799 -$60 $1,001–$6,004
#24 Astria Toppenish Hospital WA $2,802 -$57 $824–$25,617
#25 Mason General Hospital Shelton, WA $2,859 +$0 $3,812
#26 Lake Chelan Health Hospital WA $3,026 +$167 $3,026–$4,410
#27 Providence Health And Services - Washington Olympia, WA $3,484 +$625 $2,992–$9,596
#28 Providence Health And Services - Washington Centralia, WA $3,531 +$672 $2,992–$14,867
#29 Pullman Regional Hospital WA $3,594 +$735 $4,229–$6,558
#30 Providence Health And Services - Washington Everett, WA $3,893 +$1,034 $7,246–$12,522
#31 CH Moses Lake Ambulatory Surgery Centers WA $4,085 +$1,226 $4,539–$5,673
#32 WHITMAN HOSPITAL AND MEDICAL CENTER WA $4,180 +$1,321 $5,226–$7,626
#33 Providence Health And Services - Washington Spokane, WA $4,394 +$1,535 $4,394–$14,306
#34 LOURDES HEALTH WA $4,531 +$1,672 $11,329–$16,957
#35 FORKS COMMUNITY HOSPITAL WA $6,780 +$3,921 $8,476
#36 St. Francis Hospital Federal Way, WA $9,113 +$6,254 $915–$9,113
#37 St. Clare Hospital Lakewood, WA $9,113 +$6,254 $915–$9,113
#38 St. Joseph Medical Center Tacoma, WA $9,113 +$6,254 $915–$9,113
#39 St. Anthony Hospital Gig Harbor, WA $9,113 +$6,254 $915–$9,113
#40 St. Elizabeth Hospital Enumclaw, WA $9,113 +$6,254 $915–$9,113
#41 St. Anne Hospital Burien, WA $9,113 +$6,254 $915–$9,113
#42 TRIOS HEALTH WA $11,819 +$8,960 $29,548
#43 KAISER PERMANENTE CENTRAL HOSPITAL WA $12,867 +$10,008 $524–$37,900
#44 University of Washington Medical Center Seattle, WA $14,867 +$12,008 $2,795–$20,303
#45 St. Michael Medical Center Silverdale, WA $14,995 +$12,136 $915–$35,742
#46 PeaceHealth Southwest Medical Center Vancouver, WA $15,890 +$13,031 $24,447–$63,759
#47 PeaceHealth St Joseph Medical Center Bellingham, WA $18,642 +$15,783 $28,681–$56,266
#48 PeaceHealth St John Medical Center Longview, WA $32,816 +$29,957 $50,486–$75,730
#49 Alliance for South Sound Health Tacoma, WA $36,802 +$33,943 $36,802

Source: CMS hospital price transparency machine-readable files. vs Median = savings or premium relative to the state median price. Gross Charge = undiscounted list price for reference.

Received a bill? Check it for errors → Estimate YOUR cost before you go →

Compare other procedures in Washington:

Where you can save the most on knee replacement in Washington

These facilities have the lowest declared prices relative to the state median — they represent the best opportunities to reduce your out-of-pocket cost for this procedure.

Facility City Your Price vs Median
ISLAND HOSPITAL WA $40 -$2,819
Astria Sunnyside Hospital WA $181 -$2,678
Coulee Medical Center Grand Coulee, WA $507 -$2,352
Mid-Valley Hospital Omak, WA $2,018 -$841
Kadlec Regional Medical Center Richland, WA $2,121 -$738

How to choose a lower-cost facility

  • Choose independent outpatient centers when possible — freestanding ASCs (ambulatory surgical centers) consistently charge less than hospital outpatient departments for identical procedures.
  • Ask for the cash price if your deductible isn't met — self-pay rates are often lower than what insurance pays before your deductible is satisfied, especially at facilities that have a high cash-price discount.
  • Avoid hospital outpatient departments for routine cases — hospital-owned locations add a facility fee that freestanding centers don't charge, often adding $500–$1,500 to the same procedure.
Important: Many procedures are done at ambulatory surgical centers (ASCs) that are often 30–60% cheaper than hospital outpatient departments with the same clinical quality. Most ASCs are not in this hospital dataset — meaning your cheapest option may not even appear here. Ask your doctor if the procedure can be done at a freestanding ASC.

Most expensive knee replacement providers in Washington

These facilities report the highest prices for this procedure. Academic medical centers and specialty hospitals often top this list — their gross charges rarely reflect what anyone actually pays, but understanding the spread helps you negotiate.

Facility City Price vs Median
Alliance for South Sound Health Tacoma, WA $36,802 +$33,943
PeaceHealth St John Medical Center Longview, WA $32,816 +$29,957
PeaceHealth St Joseph Medical Center Bellingham, WA $18,642 +$15,783
PeaceHealth Southwest Medical Center Vancouver, WA $15,890 +$13,031
St. Michael Medical Center Silverdale, WA $14,995 +$12,136

Why prices vary this much

A small number of hospitals (2) report very high prices above $19,361, which drives much of the overall price range. Excluding these, most facilities cluster in a significantly tighter band.

The spread comes from how each hospital sets its chargemaster (the undiscounted list price), what cash discounts it applies, and what rates it negotiates with each insurer. Facility classification matters too — a hospital-owned outpatient center adds a facility fee that a freestanding clinic does not. Understanding these mechanics is the first step to paying less.

Learn more:
Allowed amount vs negotiated rate — what your EOB is really saying
How to read your medical bill
Why hospital prices are so hard to find — and what to do about it

How insurance changes what you actually pay

Hospital list prices are only part of the picture. What you pay out of pocket depends on your deductible, your plan's out-of-pocket maximum, whether the facility is in-network, and whether your plan classifies the visit as outpatient or inpatient. A lower gross charge doesn't guarantee a lower bill if the facility is out-of-network or adds facility fees your plan doesn't cover.

Understand your cost before you go:
Deductible vs out-of-pocket max
EOB vs medical bill — complete guide
How to stop medical bill problems before they start (in-network vs out-of-network)

Compare knee replacement costs in nearby states

Explore all knee replacement cost data

See knee replacement costs across all states


CostKits compiles hospital price transparency data to help families make informed decisions. If you've received a bill for this procedure:
Analyze your medical bill for errors
How to negotiate your medical bills
Track and manage your healthcare costs (free account)

Other Procedure Costs in Washington

Interested in understanding healthcare costs and managing your medical expenses?

About the Author

John Caruso, FSA, MAAA

Healthcare actuary with 20+ years of experience in insurance pricing, medical billing systems, and healthcare cost analytics.

Connect on LinkedIn →

Ready to take control of your healthcare costs?

Use the free cost estimator →  ·  Analyze a medical bill →

Published May 10, 2026 · Updated May 10, 2026

Track Your Healthcare Costs

Create a free account to save procedures, compare prices, and analyze future medical bills.