California / John Muir Medical Center - Walnut Creek Campus
CMS certification 050180 · Walnut Creek, CA · 5 entries in CMS's price-transparency list
John Muir Medical Center - Walnut Creek Campus: charges and Medicare payments
John Muir Medical Center - Walnut Creek Campus reported 5,506 Medicare inpatient stays across 147 DRGs in 2024. Across them it charged 8.65 times what it was paid — among the higher ratios in California, number 32 of 247 hospitals with at least 100 stays (state median 5.18×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 522 stays at an average charge of $217,186, 141% above the national average. It also billed 2,500 outpatient services, charging 13.06 times what Medicare paid.
- 1Medicare inpatient stays 5,506
- 2Charge ÷ paid, inpatient 8.65×
- 3Rank in CA (highest ratio = 1) 32 of 247
- 4CMS price-transparency actions 5
Inpatient stays
For the 147 DRGs that can be compared with the national average, John Muir Medical Center - Walnut Creek Campus charged more than the national average in 147 (100%). 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 | 522 | $217,186 | +141% | $24,335 |
| 291 Heart Failure and Shock with MCC | 282 | $147,957 | +162% | $15,320 |
| 470 Major Hip and Knee Joint Replacement or Reattachment of... | 244 | $200,134 | +115% | $21,619 |
| 177 Respiratory Infections and Inflammations with MCC | 169 | $185,207 | +162% | $19,122 |
| 872 Septicemia or Severe Sepsis without MV >96 Hours without MCC | 126 | $100,525 | +105% | $12,269 |
| 193 Simple Pneumonia and Pleurisy with MCC | 118 | $160,429 | +168% | $15,009 |
| 683 Renal Failure with CC | 113 | $92,956 | +128% | $10,172 |
| 552 Medical Back Problems without MCC | 111 | $96,787 | +98% | $10,536 |
| 378 Gastrointestinal Hemorrhage with CC | 106 | $105,527 | +117% | $11,370 |
| 064 Intracranial Hemorrhage or Cerebral Infarction with MCC | 94 | $215,979 | +116% | $26,028 |
| 698 Other Kidney and Urinary Tract Diagnoses with MCC | 93 | $223,711 | +205% | $23,527 |
| 603 Cellulitis without MCC | 87 | $81,226 | +118% | $9,910 |
| 690 Kidney and Urinary Tract Infections without MCC | 82 | $87,824 | +132% | $8,640 |
| 189 Pulmonary Edema and Respiratory Failure | 81 | $153,928 | +167% | $15,260 |
| 483 Major Joint or Limb Reattachment Procedures of Upper... | 80 | $211,787 | +68% | $29,210 |
| 640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 80 | $150,548 | +150% | $16,822 |
| 065 Intracranial Hemorrhage or Cerebral Infarction with CC or... | 78 | $133,800 | +140% | $13,174 |
| 481 Hip and Femur Procedures except Major Joint with CC | 77 | $213,350 | +112% | $22,768 |
| 392 Esophagitis, Gastroenteritis and Miscellaneous Digestive... | 75 | $89,248 | +122% | $9,273 |
| 853 Infectious and Parasitic Diseases with O.R. Procedures with... | 74 | $561,842 | +145% | $76,248 |
| 682 Renal Failure with MCC | 70 | $150,874 | +129% | $16,265 |
| 689 Kidney and Urinary Tract Infections with MCC | 70 | $111,867 | +118% | $12,446 |
| 641 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 66 | $84,411 | +128% | $8,515 |
| 025 Craniotomy and Endovascular Intracranial Procedures with MCC | 55 | $615,698 | +166% | $93,835 |
| 377 Gastrointestinal Hemorrhage with MCC | 51 | $244,814 | +187% | $22,751 |
| 309 Cardiac Arrhythmia and Conduction Disorders with CC | 50 | $93,456 | +159% | $8,675 |
| 522 Hip Replacement with Principal Diagnosis of Hip Fracture... | 48 | $212,764 | +108% | $22,194 |
| 178 Respiratory Infections and Inflammations with CC | 47 | $134,423 | +197% | $12,235 |
| 389 Gastrointestinal Obstruction with CC | 46 | $73,608 | +89% | $8,900 |
| 023 Craniotomy with Major Device Implant or Acute Complex Cns... | 43 | $543,074 | +93% | $85,820 |
| 308 Cardiac Arrhythmia and Conduction Disorders with MCC | 43 | $147,254 | +160% | $13,917 |
| 699 Other Kidney and Urinary Tract Diagnoses with CC | 42 | $105,696 | +123% | $10,623 |
| 870 Septicemia or Severe Sepsis with MV >96 Hours | 40 | $606,650 | +88% | $85,678 |
| 467 Revision of Hip or Knee Replacement with CC | 37 | $358,240 | +127% | $41,457 |
| 394 Other Digestive System Diagnoses with CC | 36 | $119,317 | +154% | $11,102 |
| 312 Syncope and Collapse | 35 | $113,543 | +149% | $9,619 |
| 314 Other Circulatory System Diagnoses with MCC | 35 | $204,139 | +115% | $22,625 |
| 086 Traumatic Stupor and Coma <1 Hour with CC | 34 | $118,099 | +73% | $18,654 |
| 329 Major Small and Large Bowel Procedures with MCC | 33 | $674,852 | +214% | $87,652 |
| 391 Esophagitis, Gastroenteritis and Miscellaneous Digestive... | 33 | $131,126 | +115% | $15,344 |
| 101 Seizures without MCC | 32 | $108,379 | +122% | $10,276 |
| 519 Back and Neck Procedures except Spinal Fusion with CC | 30 | $215,922 | +106% | $22,511 |
| 190 Chronic Obstructive Pulmonary Disease with MCC | 29 | $124,377 | +146% | $14,718 |
| 207 Respiratory System Diagnosis with Ventilator Support >96... | 29 | $694,284 | +137% | $93,096 |
| 536 Fractures of Hip and Pelvis without MCC | 29 | $86,483 | +129% | $8,761 |
| 026 Craniotomy and Endovascular Intracranial Procedures with CC | 28 | $481,830 | +192% | $43,554 |
| 057 Degenerative Nervous System Disorders without MCC | 28 | $123,248 | +118% | $14,381 |
| 372 Major Gastrointestinal Disorders and Peritoneal Infections... | 26 | $124,486 | +162% | $12,872 |
| 480 Hip and Femur Procedures except Major Joint with MCC | 26 | $347,388 | +150% | $38,055 |
| 812 Red Blood Cell Disorders without MCC | 26 | $95,528 | +115% | $10,066 |
| 948 Signs and Symptoms without MCC | 26 | $90,664 | +138% | $8,700 |
| 243 Permanent Cardiac Pacemaker Implant with CC | 25 | $212,665 | +91% | $24,960 |
| 280 Acute Myocardial Infarction, Discharged Alive with MCC | 25 | $155,588 | +105% | $15,162 |
| 393 Other Digestive System Diagnoses with MCC | 25 | $215,030 | +180% | $19,314 |
| 083 Traumatic Stupor and Coma >1 Hour with CC | 24 | $155,474 | +112% | $18,462 |
| 175 Pulmonary Embolism with MCC or Acute Cor Pulmonale | 24 | $118,742 | +82% | $20,533 |
| 194 Simple Pneumonia and Pleurisy with CC | 24 | $92,822 | +142% | $10,235 |
| 202 Bronchitis and Asthma with CC/MCC | 24 | $128,021 | +177% | $11,991 |
| 435 Malignancy of Hepatobiliary System or Pancreas with MCC | 24 | $194,701 | +106% | $24,788 |
| 563 Fracture, Sprain, Strain and Dislocation except Femur, Hip,... | 24 | $99,075 | +133% | $11,135 |
Showing the 60 most frequent of 147 DRGs.
Outpatient services
Against the California average
For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), John Muir Medical Center - Walnut Creek Campus charged $217,186 on average, 52% more than the California average of $143,063, and was paid $24,335 against a state average of $23,020. For Heart Failure and Shock with MCC (DRG 291), John Muir Medical Center - Walnut Creek Campus charged $147,957 on average, 47% more than the California average of $100,739, and was paid $15,320 against a state average of $15,556. For Major Hip and Knee Joint Replacement or Reattachment of Lower Extremity without MCC (DRG 470), John Muir Medical Center - Walnut Creek Campus charged $200,134 on average, 45% more than the California average of $137,972, and was paid $21,619 against a state average of $21,800. For Respiratory Infections and Inflammations with MCC (DRG 177), John Muir Medical Center - Walnut Creek Campus charged $185,207 on average, 49% more than the California average of $124,302, and was paid $19,122 against a state average of $18,986. For Comprehensive Observation Services (outpatient APC 8011), its average charge of $63,665 was 53% above the state average of $41,628. For Level 2 Excision/ Biopsy/ Incision and Drainage (outpatient APC 5072), its average charge of $17,843 was 21% above the state average of $14,749. For Level 2 Upper GI Procedures (outpatient APC 5302), its average charge of $38,562 was 103% above the state average of $19,034. For Level 3 Vascular Procedures (outpatient APC 5183), its average charge of $49,633 was 64% above the state average of $30,190.
Price-transparency record
CMS's enforcement list records these actions for a hospital named John Muir Medical Center - Walnut Creek Campus in Walnut Creek, CA, under the federal hospital price-transparency rule (45 CFR part 180), which requires hospitals to post their standard charges online:
- Warning Notice — 2024-02-08 (CMS case 952)
- CAP Request — 2024-05-16 (CMS case 952)
- Closure Notice — 2024-06-21 (CMS case 952)
- CAP Request — 2026-02-19 (CMS case 7054)
- Closure Notice — 2026-05-21 (CMS case 7054)
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.