Michigan / Mclaren Bay Region
CMS certification 230041 · Bay City, MI · 5 entries in CMS's price-transparency list
Mclaren Bay Region: charges and Medicare payments
Mclaren Bay Region reported 1,796 Medicare inpatient stays across 65 DRGs in 2024. Across them it charged 3.81 times what it was paid — among the higher ratios in Michigan, number 15 of 76 hospitals with at least 100 stays (state median 3.09×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 153 stays at an average charge of $48,532, 46% below the national average. It also billed 1,917 outpatient services, charging 4.87 times what Medicare paid.
- 1Medicare inpatient stays 1,796
- 2Charge ÷ paid, inpatient 3.81×
- 3Rank in MI (highest ratio = 1) 15 of 76
- 4CMS price-transparency actions 5
Inpatient stays
For the 65 DRGs that can be compared with the national average, Mclaren Bay Region 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 | 153 | $48,532 | -46% | $12,950 |
| 291 Heart Failure and Shock with MCC | 114 | $27,612 | -51% | $8,515 |
| 280 Acute Myocardial Infarction, Discharged Alive with MCC | 74 | $39,366 | -48% | $10,544 |
| 193 Simple Pneumonia and Pleurisy with MCC | 54 | $33,886 | -43% | $8,861 |
| 322 Percutaneous Cardiovascular Procedures with Intraluminal... | 52 | $66,786 | -42% | $13,503 |
| 287 Circulatory Disorders except AMI, with Cardiac... | 50 | $26,353 | -59% | $7,502 |
| 682 Renal Failure with MCC | 49 | $34,409 | -48% | $10,065 |
| 190 Chronic Obstructive Pulmonary Disease with MCC | 42 | $26,234 | -48% | $7,526 |
| 309 Cardiac Arrhythmia and Conduction Disorders with CC | 42 | $17,514 | -52% | $5,204 |
| 281 Acute Myocardial Infarction, Discharged Alive with CC | 40 | $23,220 | -54% | $6,512 |
| 286 Circulatory Disorders except AMI, with Cardiac... | 40 | $46,540 | -59% | $14,750 |
| 177 Respiratory Infections and Inflammations with MCC | 39 | $39,994 | -43% | $11,052 |
| 640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 39 | $28,949 | -52% | $9,080 |
| 392 Esophagitis, Gastroenteritis and Miscellaneous Digestive... | 38 | $21,103 | -47% | $5,474 |
| 189 Pulmonary Edema and Respiratory Failure | 37 | $30,485 | -47% | $8,429 |
| 310 Cardiac Arrhythmia and Conduction Disorders without CC/MCC | 36 | $11,837 | -59% | $4,055 |
| 683 Renal Failure with CC | 36 | $23,151 | -43% | $6,127 |
| 267 Endovascular Cardiac Valve Replacement and Supplement... | 35 | $179,943 | -19% | $32,332 |
| 853 Infectious and Parasitic Diseases with O.R. Procedures with... | 35 | $101,410 | -56% | $31,146 |
| 312 Syncope and Collapse | 31 | $20,139 | -56% | $6,101 |
| 378 Gastrointestinal Hemorrhage with CC | 31 | $27,835 | -43% | $6,743 |
| 308 Cardiac Arrhythmia and Conduction Disorders with MCC | 30 | $34,484 | -39% | $8,152 |
| 321 Percutaneous Cardiovascular Procedures with Intraluminal... | 28 | $98,957 | -40% | $19,375 |
| 470 Major Hip and Knee Joint Replacement or Reattachment of... | 27 | $66,682 | -28% | $12,711 |
| 274 Percutaneous and Other Intracardiac Procedures without MCC | 26 | $85,286 | -46% | $21,920 |
| 603 Cellulitis without MCC | 26 | $18,000 | -52% | $6,042 |
| 065 Intracranial Hemorrhage or Cerebral Infarction with CC or... | 24 | $22,182 | -60% | $7,335 |
| 641 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 22 | $17,146 | -54% | $5,479 |
| 690 Kidney and Urinary Tract Infections without MCC | 21 | $18,468 | -51% | $5,397 |
| 872 Septicemia or Severe Sepsis without MV >96 Hours without MCC | 21 | $28,378 | -42% | $6,830 |
| 064 Intracranial Hemorrhage or Cerebral Infarction with MCC | 20 | $40,214 | -60% | $12,780 |
| 069 Transient Ischemia without Thrombolytic | 20 | $20,178 | -60% | $5,624 |
| 689 Kidney and Urinary Tract Infections with MCC | 20 | $22,787 | -56% | $7,913 |
| 243 Permanent Cardiac Pacemaker Implant with CC | 19 | $74,839 | -33% | $16,060 |
| 313 Chest Pain | 18 | $14,182 | -64% | $5,011 |
| 242 Permanent Cardiac Pacemaker Implant with MCC | 17 | $109,399 | -32% | $24,360 |
| 377 Gastrointestinal Hemorrhage with MCC | 17 | $40,658 | -52% | $11,645 |
| 481 Hip and Femur Procedures except Major Joint with CC | 17 | $55,503 | -45% | $13,437 |
| 234 Coronary Bypass with Cardiac Catheterization or Open... | 16 | $120,920 | -55% | $34,316 |
| 389 Gastrointestinal Obstruction with CC | 15 | $17,804 | -54% | $5,071 |
| 812 Red Blood Cell Disorders without MCC | 15 | $23,718 | -47% | $6,104 |
| 884 Organic Disturbances and Intellectual Disability | 15 | $20,652 | -67% | $10,404 |
| 035 Carotid Artery Stent Procedures with CC | 14 | $56,437 | -50% | $15,922 |
| 175 Pulmonary Embolism with MCC or Acute Cor Pulmonale | 14 | $31,873 | -51% | $9,871 |
| 208 Respiratory System Diagnosis with Ventilator Support <=96... | 14 | $57,380 | -58% | $17,274 |
| 244 Permanent Cardiac Pacemaker Implant without CC/MCC | 14 | $68,049 | -27% | $15,212 |
| 522 Hip Replacement with Principal Diagnosis of Hip Fracture... | 14 | $65,774 | -36% | $14,140 |
| 563 Fracture, Sprain, Strain and Dislocation except Femur, Hip,... | 14 | $14,693 | -66% | $5,938 |
| 637 Diabetes with MCC | 14 | $30,550 | -54% | $9,103 |
| 638 Diabetes with CC | 14 | $25,665 | -38% | $6,477 |
| 698 Other Kidney and Urinary Tract Diagnoses with MCC | 14 | $39,206 | -47% | $10,901 |
| 036 Carotid Artery Stent Procedures without CC/MCC | 13 | $48,616 | -45% | $12,252 |
| 270 Other Major Cardiovascular Procedures with MCC | 13 | $122,876 | -53% | $31,891 |
| 460 Spinal Fusion except Cervical without MCC | 13 | $78,850 | -54% | $24,155 |
| 870 Septicemia or Severe Sepsis with MV >96 Hours | 13 | $152,872 | -53% | $41,757 |
| 191 Chronic Obstructive Pulmonary Disease with CC | 12 | $26,919 | -32% | $5,829 |
| 194 Simple Pneumonia and Pleurisy with CC | 12 | $21,277 | -45% | $5,244 |
| 292 Heart Failure and Shock with CC | 12 | $19,748 | -49% | $5,920 |
| 314 Other Circulatory System Diagnoses with MCC | 12 | $34,118 | -64% | $11,430 |
| 330 Major Small and Large Bowel Procedures with CC | 12 | $53,356 | -55% | $15,795 |
Showing the 60 most frequent of 65 DRGs.
Outpatient services
Against the Michigan average
For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Mclaren Bay Region charged $48,532 on average, 11% less than the Michigan average of $54,260, and was paid $12,950 against a state average of $17,096. For Heart Failure and Shock with MCC (DRG 291), Mclaren Bay Region charged $27,612 on average, 23% less than the Michigan average of $35,827, and was paid $8,515 against a state average of $11,565. For Acute Myocardial Infarction, Discharged Alive with MCC (DRG 280), Mclaren Bay Region charged $39,366 on average, 18% less than the Michigan average of $47,816, and was paid $10,544 against a state average of $13,931. For Simple Pneumonia and Pleurisy with MCC (DRG 193), Mclaren Bay Region charged $33,886 on average, 5% less than the Michigan average of $35,850, and was paid $8,861 against a state average of $11,562. For Level 1 Endovascular Procedures (outpatient APC 5191), its average charge of $9,043 was 48% below the state average of $17,272. For Level 5 Urology and Related Services (outpatient APC 5375), its average charge of $14,018 was 38% below the state average of $22,685. For Level 3 Endovascular Procedures (outpatient APC 5193), its average charge of $39,053 was 27% below the state average of $53,702. For Level 5 Musculoskeletal Procedures (outpatient APC 5115), its average charge of $53,068 was 10% above the state average of $48,446.
Price-transparency record
CMS's enforcement list records these actions for a hospital named Mclaren Bay Region in Bay City, MI, under the federal hospital price-transparency rule (45 CFR part 180), which requires hospitals to post their standard charges online:
- Warning Notice — 2023-02-09 (CMS case 1281)
- Closure Notice — 2023-06-16 (CMS case 1281)
- Met Requirements — 2025-04-09 (CMS case 3697)
- Met Requirements — 2025-05-28 (CMS case 4729)
- Met Requirements — 2025-06-16 (CMS case 5176)
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.