Washington / Providence St Mary Medical Center
CMS certification 500002 · Walla Walla, WA · 2 entries in CMS's price-transparency list
Providence St Mary Medical Center: charges and Medicare payments
Providence St Mary Medical Center reported 1,087 Medicare inpatient stays across 36 DRGs in 2024. Across them it charged 3.56 times what it was paid — among the lower ratios in Washington, number 38 of 43 hospitals with at least 100 stays (state median 4.37×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 189 stays at an average charge of $47,398, 48% below the national average. It also billed 1,768 outpatient services, charging 5.64 times what Medicare paid.
- 1Medicare inpatient stays 1,087
- 2Charge ÷ paid, inpatient 3.56×
- 3Rank in WA (highest ratio = 1) 38 of 43
- 4CMS price-transparency actions 2
Inpatient stays
For the 36 DRGs that can be compared with the national average, Providence St Mary Medical Center charged more than the national average in 0 (0%). Payments follow Medicare's rates, so they usually vary far less than charges.
| DRG | Stays | Avg charge | vs US | Avg paid |
|---|---|---|---|---|
| 871 Septicemia or Severe Sepsis without MV >96 Hours with MCC | 189 | $47,398 | -48% | $15,850 |
| 291 Heart Failure and Shock with MCC | 84 | $40,681 | -28% | $10,522 |
| 177 Respiratory Infections and Inflammations with MCC | 59 | $40,841 | -42% | $13,269 |
| 280 Acute Myocardial Infarction, Discharged Alive with MCC | 57 | $42,044 | -45% | $12,908 |
| 872 Septicemia or Severe Sepsis without MV >96 Hours without MCC | 54 | $32,670 | -33% | $8,620 |
| 193 Simple Pneumonia and Pleurisy with MCC | 42 | $40,327 | -33% | $12,105 |
| 322 Percutaneous Cardiovascular Procedures with Intraluminal... | 38 | $74,569 | -35% | $17,818 |
| 189 Pulmonary Edema and Respiratory Failure | 29 | $45,428 | -21% | $9,773 |
| 321 Percutaneous Cardiovascular Procedures with Intraluminal... | 29 | $107,981 | -34% | $24,423 |
| 682 Renal Failure with MCC | 29 | $37,208 | -44% | $13,079 |
| 064 Intracranial Hemorrhage or Cerebral Infarction with MCC | 27 | $46,942 | -53% | $15,740 |
| 281 Acute Myocardial Infarction, Discharged Alive with CC | 27 | $29,756 | -41% | $7,396 |
| 324 Coronary Intravascular Lithotripsy with Intraluminal Device... | 26 | $113,527 | -35% | $27,520 |
| 309 Cardiac Arrhythmia and Conduction Disorders with CC | 25 | $23,334 | -35% | $6,424 |
| 480 Hip and Femur Procedures except Major Joint with MCC | 25 | $75,712 | -45% | $23,172 |
| 065 Intracranial Hemorrhage or Cerebral Infarction with CC or... | 24 | $33,826 | -39% | $8,117 |
| 698 Other Kidney and Urinary Tract Diagnoses with MCC | 24 | $35,863 | -51% | $13,037 |
| 683 Renal Failure with CC | 23 | $23,745 | -42% | $7,918 |
| 853 Infectious and Parasitic Diseases with O.R. Procedures with... | 22 | $150,350 | -34% | $42,724 |
| 378 Gastrointestinal Hemorrhage with CC | 21 | $35,204 | -27% | $7,891 |
| 470 Major Hip and Knee Joint Replacement or Reattachment of... | 21 | $68,151 | -27% | $14,925 |
| 481 Hip and Femur Procedures except Major Joint with CC | 21 | $73,275 | -27% | $18,073 |
| 377 Gastrointestinal Hemorrhage with MCC | 20 | $53,506 | -37% | $14,167 |
| 522 Hip Replacement with Principal Diagnosis of Hip Fracture... | 19 | $69,484 | -32% | $17,911 |
| 951 Other Factors Influencing Health Status | 16 | $16,701 | -35% | $4,854 |
| 640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 15 | $42,756 | -29% | $11,987 |
| 689 Kidney and Urinary Tract Infections with MCC | 15 | $30,840 | -40% | $9,315 |
| 175 Pulmonary Embolism with MCC or Acute Cor Pulmonale | 14 | $41,312 | -37% | $13,868 |
| 389 Gastrointestinal Obstruction with CC | 14 | $25,791 | -34% | $6,468 |
| 603 Cellulitis without MCC | 12 | $21,357 | -43% | $7,154 |
| 069 Transient Ischemia without Thrombolytic | 11 | $28,075 | -44% | $6,510 |
| 242 Permanent Cardiac Pacemaker Implant with MCC | 11 | $74,768 | -53% | $27,192 |
| 323 Coronary Intravascular Lithotripsy with Intraluminal Device... | 11 | $166,665 | -28% | $33,990 |
| 439 Disorders of Pancreas except Malignancy with CC | 11 | $37,686 | -14% | $7,815 |
| 690 Kidney and Urinary Tract Infections without MCC | 11 | $30,709 | -19% | $6,553 |
| 699 Other Kidney and Urinary Tract Diagnoses with CC | 11 | $31,719 | -33% | $8,376 |
Outpatient services
Against the Washington average
For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Providence St Mary Medical Center charged $47,398 on average, 40% less than the Washington average of $78,715, and was paid $15,850 against a state average of $18,304. For Heart Failure and Shock with MCC (DRG 291), Providence St Mary Medical Center charged $40,681 on average, 24% less than the Washington average of $53,424, and was paid $10,522 against a state average of $12,124. For Respiratory Infections and Inflammations with MCC (DRG 177), Providence St Mary Medical Center charged $40,841 on average, 38% less than the Washington average of $65,942, and was paid $13,269 against a state average of $15,782. For Acute Myocardial Infarction, Discharged Alive with MCC (DRG 280), Providence St Mary Medical Center charged $42,044 on average, 37% less than the Washington average of $66,804, and was paid $12,908 against a state average of $14,507. For Level 1 Intraocular Procedures (outpatient APC 5491), its average charge of $12,659 was 23% above the state average of $10,318. For Level 5 Musculoskeletal Procedures (outpatient APC 5115), its average charge of $50,432 was 28% below the state average of $69,838. For Level 1 Nerve Procedures (outpatient APC 5431), its average charge of $8,978 was 23% below the state average of $11,648. For Level 2 Excision/ Biopsy/ Incision and Drainage (outpatient APC 5072), its average charge of $6,945 was 28% below the state average of $9,672.
Price-transparency record
CMS's enforcement list records these actions for a hospital named Providence St Mary Medical Center in Walla Walla, WA, under the federal hospital price-transparency rule (45 CFR part 180), which requires hospitals to post their standard charges online:
- Met Requirements — 2024-02-13 (CMS case 1397)
- Met Requirements — 2025-07-14 (CMS case 5724)
A warning notice or corrective-action request is not a finding of wrongdoing; "Met Requirements" and closure notices record that CMS's review ended. Matched to this hospital by exact name, city and state.
Charges are the hospital's list prices averaged over its 2024 Medicare cases; payments are what those cases actually brought in. Neither is what you will pay. For a planned procedure, ask the hospital for its price estimate or, if you are uninsured or self-paying, a good-faith estimate.
Sources: CMS Medicare Inpatient Hospitals — by Provider and Service / by Geography and Service, data year 2024; CMS Medicare Outpatient Hospitals — by Provider and Service / by Geography and Service, data year 2024; CMS Hospital Price Transparency Enforcement Activities and Outcomes, July 2026. Checked 2026-10-24. Methodology.