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Providence St. Mary Medical Center: procedure prices

401 W Poplar St, Walla Walla, WA 99362 · part of Providence Swedish (Providence Health & Services WA). Median prices below are computed from the hospital's own price transparency file.

ProcedureGross chargeCash priceCommercial medianRange# rates
EKG (electrocardiogram)$120$84$208$2081
Echocardiogram$3,036$2,125$1,916$489–$3,0528
Sleep study (overnight in lab)$4,871$3,410$3,132$926–$5,78416
Colonoscopy$3,104$2,173$4,114$810–$13,80921
Upper endoscopy (EGD)$2,878$2,015$3,568$803–$13,80914
Abdomen and pelvis CT (with contrast)$4,594$3,215$1,148$341–$2,4076
Abdominal ultrasound$1,198$839$336$97–$6886
Brain MRI (with and without contrast)$3,226$2,258$1,148$341–$2,4076
Brain MRI (without contrast)$2,026$1,418$758$217–$1,5346
CT angiogram (chest)$3,386$2,370$563$163–$1,1506
Chest X-ray$573$401$223$81–$5696
Head CT scan (without contrast)$1,556$1,089$336$97–$6886
Knee MRI$2,494$1,746$758$217–$1,5346
Lower back MRI (lumbar spine)$4,033$2,823$758$217–$1,5346
Pregnancy ultrasound$1,232$863$419$97–$6888
Screening mammogram$546$383$173$94–$5455
Blood sugar test (hemoglobin A1c)$86$60$29$17–$633
Cholesterol test (lipid panel)$102$71$39$24–$863
Complete blood count (CBC)$110$77$37$23–$502
Comprehensive metabolic panel$181$127$31$19–$683
Thyroid test (TSH)$41$29$49$30–$1083
C-section delivery$16,848$13,824–$25,1286
Childbirth (vaginal delivery)$12,893$9,733–$17,6926
Cataract surgery$9,028$2,065–$17,9536
Gallbladder removal surgery$23,518$5,113–$36,58412
Hernia repair surgery (inguinal)$11,378$7,965$13,655$3,066–$17,9676
Total knee replacement$37,079$11,662–$59,23912
Physical therapy session$132$92$94$29–$32610
Emergency room visit$940$658$1,327$253–$3,40921
Urgent care / office visit (new patient)$1$10

Data from this hospital's official standard-charges file dated 2026-04-01, retrieved 2026-08-03 · source file · CMS v3.0.0.