California / Coast Plaza Hospital
CMS certification 050771 · Norwalk, CA
Coast Plaza Hospital: charges and Medicare payments
Coast Plaza Hospital reported 437 Medicare inpatient stays across 13 DRGs in 2024. Across them it charged 5.18 times what it was paid — mid-range in California, number 124 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: 148 stays at an average charge of $107,457, 19% above the national average. It also billed 44 outpatient services, charging 10.02 times what Medicare paid.
- 1Medicare inpatient stays 437
- 2Charge ÷ paid, inpatient 5.18×
- 3Rank in CA (highest ratio = 1) 124 of 247
- 4CMS price-transparency actions 0
Inpatient stays
For the 13 DRGs that can be compared with the national average, Coast Plaza Hospital charged more than the national average in 11 (85%). 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 | 148 | $107,457 | +19% | $19,438 |
| 885 Psychoses | 46 | $39,265 | -11% | $14,078 |
| 291 Heart Failure and Shock with MCC | 42 | $65,705 | +17% | $13,004 |
| 689 Kidney and Urinary Tract Infections with MCC | 33 | $55,571 | +8% | $12,051 |
| 280 Acute Myocardial Infarction, Discharged Alive with MCC | 26 | $125,976 | +66% | $16,118 |
| 193 Simple Pneumonia and Pleurisy with MCC | 24 | $92,861 | +55% | $13,403 |
| 640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 24 | $64,718 | +7% | $13,493 |
| 690 Kidney and Urinary Tract Infections without MCC | 21 | $39,903 | +6% | $8,367 |
| 870 Septicemia or Severe Sepsis with MV >96 Hours | 20 | $302,340 | -6% | $67,296 |
| 377 Gastrointestinal Hemorrhage with MCC | 14 | $109,855 | +29% | $18,117 |
| 603 Cellulitis without MCC | 14 | $39,698 | +6% | $9,299 |
| 872 Septicemia or Severe Sepsis without MV >96 Hours without MCC | 14 | $65,078 | +33% | $10,751 |
| 177 Respiratory Infections and Inflammations with MCC | 11 | $97,261 | +38% | $17,536 |
Outpatient services
| Service (APC) | Services | Avg charge | Medicare allowed |
|---|---|---|---|
| Comprehensive Observation Services | 33 | $24,574 | $3,365 |
| Level 2 Upper GI Procedures | 11 | $24,200 | $2,209 |
Against the California average
For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Coast Plaza Hospital charged $107,457 on average, 25% less than the California average of $143,063, and was paid $19,438 against a state average of $23,020. For Psychoses (DRG 885), Coast Plaza Hospital charged $39,265 on average, 24% less than the California average of $51,465, and was paid $14,078 against a state average of $15,642. For Heart Failure and Shock with MCC (DRG 291), Coast Plaza Hospital charged $65,705 on average, 35% less than the California average of $100,739, and was paid $13,004 against a state average of $15,556. For Kidney and Urinary Tract Infections with MCC (DRG 689), Coast Plaza Hospital charged $55,571 on average, 32% less than the California average of $81,192, and was paid $12,051 against a state average of $13,102. For Comprehensive Observation Services (outpatient APC 8011), its average charge of $24,574 was 41% below the state average of $41,628. For Level 2 Upper GI Procedures (outpatient APC 5302), its average charge of $24,200 was 27% above the state average of $19,034.
Price-transparency record
No action in CMS's price-transparency enforcement list (July 2026) matches this hospital's exact name, city and state. That can mean CMS has not reviewed it, or that it is listed under a different name.
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.