8/100
#2,439 nationally
John Muir Medical Center - Walnut Creek Campus
1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 · (925) 939-3000
Among the highest charge markups in the country
For every $1 of care Medicare actually paid for here, John Muir Medical Center - Walnut Creek Campus billed $8.89 in list charges. That gap does not change a Medicare patient's bill — but it is where an uninsured or out-of-network bill starts.
- Charge-to-payment
- 8.9x
- volume-weighted across all its priced work
- Procedures priced
- 177
- inpatient and outpatient combined
- Rank in CA
- #208
- lower markup ranks higher
- CMS quality stars
- 2/5
- shown for context, not in the grade
How this grade was reached
Each component is scored against every other U.S. hospital in the same federal files, so the grade is a position in the country, not a pass mark we invented.
Better than 8% of U.S. hospitals.
Better than 14% of U.S. hospitals.
Better than 4% of U.S. hospitals.
Better than 6% of U.S. hospitals.
What this hospital treats most
The ten procedures it billed Medicare for most often, with its charge beside the national middle.
| Procedure | Patients | Charged | Actually paid | vs national |
|---|---|---|---|---|
|
Comprehensive Observation Services
APC 8011 · Hospital outpatient visit |
598 | $63,665 | $3,806 | +228% |
|
Sepsis (severe)
MS-DRG 871 · Inpatient stay |
522 | $217,186 | $24,335 | +233% |
|
Level 2 Excision/ Biopsy/ Incision and Drainage
APC 5072 · Hospital outpatient visit |
499 | $17,843 | $2,254 | +77% |
|
Heart Failure (severe)
MS-DRG 291 · Inpatient stay |
282 | $147,957 | $15,320 | +241% |
|
Hip or Knee Replacement (without major complications)
MS-DRG 470 · Inpatient stay |
244 | $200,134 | $21,619 | +150% |
|
Level 2 Upper GI Procedures
APC 5302 · Hospital outpatient visit |
243 | $38,562 | $2,649 | +228% |
|
Respiratory Infection (severe)
MS-DRG 177 · Inpatient stay |
169 | $185,207 | $19,122 | +237% |
|
Sepsis (without major complications)
MS-DRG 872 · Inpatient stay |
126 | $100,525 | $12,269 | +156% |
|
Pneumonia (severe)
MS-DRG 193 · Inpatient stay |
118 | $160,429 | $15,009 | +244% |
|
Kidney Failure (with complications)
MS-DRG 683 · Inpatient stay |
113 | $92,956 | $10,172 | +182% |
Where its charges run furthest above the national middle
Only procedures it performed at least eleven times, so a single unusual case cannot produce the headline.
| Procedure | Charged | Actually paid | vs national |
|---|---|---|---|
|
Psychoses
MS-DRG 885 · Inpatient stay |
$270,266 | $32,688 | +649% |
|
Chemotherapy without Acute Leukemia as Secondary Diagnosis with Complications
MS-DRG 847 · Inpatient stay |
$224,445 | $14,221 | +319% |
|
Extensive Operating Room Procedures Unrelated to Principal Diagnosis with Major
MS-DRG 981 · Inpatient stay |
$753,399 | $97,864 | +310% |
|
Kidney or Urinary Disorder (severe)
MS-DRG 698 · Inpatient stay |
$223,711 | $23,527 | +294% |
|
Heart Failure (with complications)
MS-DRG 292 · Inpatient stay |
$128,597 | $9,506 | +289% |
|
Diabetes with Major Complications
MS-DRG 637 · Inpatient stay |
$216,641 | $22,216 | +284% |
|
Major Small and Large Bowel Procedures with Major Complications
MS-DRG 329 · Inpatient stay |
$674,852 | $87,652 | +276% |
|
Level 4 Airway Endoscopy
APC 5154 · Hospital outpatient visit |
$85,121 | $5,214 | +275% |
Where it charges least relative to everyone else
| Procedure | Charged | Actually paid | vs national |
|---|---|---|---|
|
Level 7 Radiation Therapy
APC 5627 · Hospital outpatient visit |
$49,410 | $10,831 | -16% |
|
Traumatic Stupor and Coma <1 Hour without Complications/mcc
MS-DRG 087 · Inpatient stay |
$77,569 | $12,189 | +40% |
|
Stomach, Esophageal and Duodenal Procedures with Major Complications
MS-DRG 326 · Inpatient stay |
$320,760 | $68,444 | +44% |
|
Level 2 Vascular Procedures
APC 5182 · Hospital outpatient visit |
$12,600 | $2,230 | +47% |
|
Level 2 Pacemaker and Similar Procedures
APC 5222 · Hospital outpatient visit |
$56,120 | $11,814 | +48% |
|
Pelvic Evisceration, Radical Hysterectomy and Radical Vulvectomy with Complications/mcc
MS-DRG 734 · Inpatient stay |
$253,605 | $23,432 | +49% |
|
Implantation Wireless Pa Pressure Monitor
APC 5200 · Hospital outpatient visit |
$202,769 | $40,336 | +49% |
|
Degenerative Nervous System Disorders with Major Complications
MS-DRG 056 · Inpatient stay |
$141,256 | $30,162 | +64% |
What this page cannot tell you
- It is not your bill. These are averages across Medicare patients. What you pay depends on your insurance, your plan's negotiated rate and your own case.
- It is not a quality rating. A hospital with a high markup may be excellent, and one with a low markup may not be. We checked: across every U.S. hospital, markup and the CMS quality star rating barely move together.
- A charge is not a cost. Hospitals do not collect their list charges from insured patients. The number matters because it is the opening figure on an uninsured or out-of-network bill.
- Ask for the real number. Every U.S. hospital must publish a machine-readable price file and give you a written good-faith estimate on request.