California / Contra Costa Regional Medical Center
CMS certification 050276 · Martinez, CA · 2 entries in CMS's price-transparency list
Contra Costa Regional Medical Center: charges and Medicare payments
Contra Costa Regional Medical Center reported 305 Medicare inpatient stays across 13 DRGs in 2024. Across them it charged 1.56 times what it was paid — among the lower ratios in California, number 246 of 247 hospitals with at least 100 stays (state median 5.18×, national 4.15×). Its most frequent stay was DRG 291, Heart Failure and Shock with MCC: 91 stays at an average charge of $48,318, 14% below the national average. It also billed 408 outpatient services, charging 4.03 times what Medicare paid.
- 1Medicare inpatient stays 305
- 2Charge ÷ paid, inpatient 1.56×
- 3Rank in CA (highest ratio = 1) 246 of 247
- 4CMS price-transparency actions 2
Inpatient stays
For the 13 DRGs that can be compared with the national average, Contra Costa Regional Medical Center charged more than the national average in 5 (38%). Payments follow Medicare's rates, so they usually vary far less than charges.
| DRG | Stays | Avg charge | vs US | Avg paid |
|---|---|---|---|---|
| 291 Heart Failure and Shock with MCC | 91 | $48,318 | -14% | $31,705 |
| 871 Septicemia or Severe Sepsis without MV >96 Hours with MCC | 43 | $66,434 | -26% | $45,523 |
| 690 Kidney and Urinary Tract Infections without MCC | 24 | $32,068 | -15% | $23,162 |
| 872 Septicemia or Severe Sepsis without MV >96 Hours without MCC | 20 | $37,055 | -24% | $26,030 |
| 177 Respiratory Infections and Inflammations with MCC | 17 | $79,390 | +12% | $43,140 |
| 194 Simple Pneumonia and Pleurisy with CC | 16 | $39,476 | +3% | $22,612 |
| 392 Esophagitis, Gastroenteritis and Miscellaneous Digestive... | 15 | $36,509 | -9% | $21,623 |
| 603 Cellulitis without MCC | 15 | $42,096 | +13% | $26,963 |
| 292 Heart Failure and Shock with CC | 14 | $39,047 | 0% | $24,580 |
| 065 Intracranial Hemorrhage or Cerebral Infarction with CC or... | 13 | $35,695 | -36% | $24,120 |
| 190 Chronic Obstructive Pulmonary Disease with MCC | 13 | $60,157 | +19% | $33,910 |
| 193 Simple Pneumonia and Pleurisy with MCC | 12 | $66,028 | +10% | $38,078 |
| 897 Alcohol, Drug Abuse or Dependence without Rehabilitation... | 12 | $32,407 | -13% | $22,016 |
Outpatient services
| Service (APC) | Services | Avg charge | Medicare allowed |
|---|---|---|---|
| Level 1 Intraocular Procedures | 124 | $12,488 | $3,213 |
| Level 2 Urology and Related Services | 65 | $1,058 | $688 |
| Level 2 Excision/ Biopsy/ Incision and Drainage | 34 | $4,294 | $1,926 |
| Level 3 Musculoskeletal Procedures | 32 | $12,776 | $3,944 |
| Level 1 Nerve Procedures | 22 | $10,987 | $2,689 |
| Level 1 Laparoscopy and Related Services | 21 | $20,453 | $8,034 |
| Level 2 Musculoskeletal Procedures | 18 | $8,076 | $2,163 |
| Level 1 Abdominal/Peritoneal/Biliary and Related Procedures | 18 | $18,490 | $4,817 |
| Level 5 Urology and Related Services | 18 | $20,446 | $7,205 |
| Level 4 Musculoskeletal Procedures | 16 | $30,916 | $9,953 |
| Level 4 Gynecologic Procedures | 16 | $16,192 | $4,353 |
| Level 4 Urology and Related Services | 13 | $8,948 | $3,360 |
| Level 3 Vascular Procedures | 11 | $6,608 | $4,196 |
Against the California average
For Heart Failure and Shock with MCC (DRG 291), Contra Costa Regional Medical Center charged $48,318 on average, 52% less than the California average of $100,739, and was paid $31,705 against a state average of $15,556. For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Contra Costa Regional Medical Center charged $66,434 on average, 54% less than the California average of $143,063, and was paid $45,523 against a state average of $23,020. For Kidney and Urinary Tract Infections without MCC (DRG 690), Contra Costa Regional Medical Center charged $32,068 on average, 50% less than the California average of $63,565, and was paid $23,162 against a state average of $9,722. For Septicemia or Severe Sepsis without MV >96 Hours without MCC (DRG 872), Contra Costa Regional Medical Center charged $37,055 on average, 51% less than the California average of $76,120, and was paid $26,030 against a state average of $12,552. For Level 1 Intraocular Procedures (outpatient APC 5491), its average charge of $12,488 was 40% below the state average of $20,986. For Level 2 Urology and Related Services (outpatient APC 5372), its average charge of $1,058 was 78% below the state average of $4,853. For Level 2 Excision/ Biopsy/ Incision and Drainage (outpatient APC 5072), its average charge of $4,294 was 71% below the state average of $14,749. For Level 3 Musculoskeletal Procedures (outpatient APC 5113), its average charge of $12,776 was 65% below the state average of $36,238.
Price-transparency record
CMS's enforcement list records these actions for a hospital named Contra Costa Regional Medical Center in Martinez, CA, under the federal hospital price-transparency rule (45 CFR part 180), which requires hospitals to post their standard charges online:
- Warning Notice — 2025-09-18 (CMS case 6679)
- Closure Notice — 2025-12-19 (CMS case 6679)
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.