CMS certification 230197
Ascension Genesys Hospital
One Genesys Parkway, Grand Blanc, MI 48439
Ascension Genesys Hospital has a CMS overall rating of 3 out of 5 stars. 58% of patients who answered CMS's national survey would definitely recommend it, against a US average of 71%. Of the 24 death, complication, infection and readmission measures CMS could compare, it does better than the nation on 2 and worse on none. Emergency patients spend a median of 3 h 51 min in its emergency department before leaving (US median 2 h 42 min).
Every figure on this page is published by CMS; we arrange and explain it, and score nothing ourselves.
What patients said
Answers from patients who stayed here, collected by CMS in the national HCAHPS survey: 680 completed surveys, 25% response rate, Oct 2024 – Sep 2025.
Emergency department
How long emergency patients spent here and how some time-critical care went, from CMS's timely and effective care measures, Oct 2024 – Sep 2025. These are medians over a year of visits, not a live wait time.
| Measure | This hospital | MI | US |
|---|---|---|---|
| Median time in the emergency department before leaving Lower is better · 431 visits sampled | 3 h 51 min | 2 h 39 min | 2 h 42 min |
| Median time for psychiatric and mental health patients Lower is better · 13 visits sampled | 5 h 22 min | 4 h 26 min | 4 h 17 min |
| Stroke symptoms: brain scan read within 45 minutes Higher is better · 12 patients | 75% | 72% | 69% |
| Severe sepsis and septic shock: all recommended care given Higher is better · 87 patients | 47% | 60% | 65% |
How Ascension Genesys Hospital compares with nearby hospitals
The closest hospitals of the same kind that CMS rates or surveys - the same city first, then the same county and ZIP area. Every figure is CMS's: the overall star rating, the share of patients who would definitely recommend the hospital, the median time emergency patients spent before leaving, and how many death, complication, infection and readmission measures CMS found better or worse than the national rate.
| Hospital | CMS stars | Would recommend | ER median time | Vs the nation |
|---|---|---|---|---|
| Ascension Genesys HospitalThis hospital | 3/5 | 58% | 3 h 51 min | 2 better |
| Hurley Medical CenterSame county · Flint | 2/5 | 62% | 3 h 10 min | 3 better 1 worse |
| McLaren FlintSame county · Flint | 2/5 | 59% | 2 h 58 min | 3 better 2 worse |
| McLaren Lapeer RegionSame ZIP area · Lapeer | 2/5 | 46% | 3 h 6 min | 1 worse |
| Marlette Regional HospitalSame ZIP area · Marlette | Not rated | 79% | 1 h 46 min | No different |
| McLaren Thumb RegionSame ZIP area · Bad Axe | 5/5 | 63% | 1 h 59 min | 1 better |
Hospitals differ in size and in how sick their patients are. CMS adjusts its outcome measures for that, but a star or a percentage is a starting point for questions, not a verdict.
Deaths
How many patients died within 30 days of admission, adjusted by CMS for how sick they were. Lower is better. Data from Jul 2022 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| All patients, hospital-wide 3,446 cases | Too few cases | 3.6% | 3.9% |
| Heart attack 128 cases | Too few cases | 14% | 11.9% |
| Heart failure 355 cases | Too few cases | 11.9% | 11.1% |
| Pneumonia 415 cases | Too few cases | 16.1% | 15.2% |
| Stroke 218 cases | Too few cases | 14.6% | 11.9% |
| COPD 120 cases | Too few cases | 8.6% | 8.6% |
| Heart bypass surgery (CABG) 29 cases | Too few cases | 2.5% | 2.4% |
Complications
How often patients had serious complications, most of them after surgery, adjusted for how sick they were. Lower is better. Data from Jul 2022 – Jun 2024.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Serious complications, combined measure | No different | 1.02 likely 0.66 – 1.38 | 1 |
| After hip or knee replacement 79 cases | Too few cases | 4.3% | 4.1% |
| Deaths after a serious but treatable surgical complication 64 cases | No different | 165.24 per 1,000 likely 115.58 per 1,000 – 214.89 per 1,000 | 173.3 per 1,000 |
| Pressure ulcers (bed sores) 4,362 cases | No different | 0.56 per 1,000 likely 0 per 1,000 – 1.25 per 1,000 | 0.63 per 1,000 |
| Collapsed lung caused by a procedure 4,779 cases | No different | 0.17 per 1,000 likely 0 per 1,000 – 0.38 per 1,000 | 0.21 per 1,000 |
| Broken bones from falls in the hospital 4,853 cases | No different | 0.27 per 1,000 likely 0.07 per 1,000 – 0.47 per 1,000 | 0.27 per 1,000 |
| Bleeding or hematoma after surgery 833 cases | No different | 2.66 per 1,000 likely 1.11 per 1,000 – 4.21 per 1,000 | 2.34 per 1,000 |
| Kidney injury needing dialysis after surgery 216 cases | No different | 1.58 per 1,000 likely 0 per 1,000 – 3.26 per 1,000 | 1.67 per 1,000 |
| Breathing failure after surgery 215 cases | No different | 12.62 per 1,000 likely 4.14 per 1,000 – 21.1 per 1,000 | 9.42 per 1,000 |
| Blood clots in the lungs or legs after surgery 873 cases | No different | 3.16 per 1,000 likely 0.96 per 1,000 – 5.37 per 1,000 | 3.52 per 1,000 |
| Sepsis after surgery 206 cases | No different | 4.65 per 1,000 likely 0.56 per 1,000 – 8.74 per 1,000 | 5.27 per 1,000 |
| Surgical wound splitting open 155 cases | No different | 1.61 per 1,000 likely 0.14 per 1,000 – 3.07 per 1,000 | 1.77 per 1,000 |
| Accidental cut or tear during abdominal surgery 719 cases | No different | 1.11 per 1,000 likely 0.12 per 1,000 – 2.1 per 1,000 | 1.06 per 1,000 |
Infections caught in the hospital
Standardized infection ratio: 1.0 means as many infections as CMS predicted for a hospital like this one. Lower is better. Data from Oct 2024 – Sep 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Bloodstream infections from central lines (CLABSI) | No different | 0.41 likely 0.07 – 1.36 | 1 |
| Urinary tract infections from catheters (CAUTI) | Better | 0.37 likely 0.09 – 1 | 1 |
| Surgical site infections after colon surgery | No different | 1.01 likely 0.41 – 2.1 | 1 |
| Surgical site infections after abdominal hysterectomy | No different | 0 | 1 |
| MRSA bloodstream infections | No different | 0.61 likely 0.2 – 1.48 | 1 |
| C. diff intestinal infections | Better | 0.36 likely 0.19 – 0.61 | 1 |
Readmissions and return visits
How often patients had to come back to a hospital after going home. Lower is better. Data from Jul 2023 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Readmitted after a heart attack 216 cases | Too few cases | 14.4% | 14.4% |
| Readmitted after heart failure 661 cases | Too few cases | 21.3% | 21.3% |
| Readmitted after pneumonia 691 cases | Too few cases | 16.2% | 17.3% |
| Readmitted after COPD 224 cases | Too few cases | 19% | 20% |
| Readmitted after heart bypass surgery 36 cases | Too few cases | 10.9% | 11% |
| Readmitted after hip or knee replacement 78 cases | Too few cases | 5.9% | 5.8% |
| Days back in hospital after a heart attack 118 cases | Too few cases | 12.7 days per 100 | — |
| Days back in hospital after heart failure 380 cases | Too few cases | -1.1 days per 100 | — |
| Days back in hospital after pneumonia 422 cases | Too few cases | 10.8 days per 100 | — |
| Unplanned visits after an outpatient colonoscopy 271 cases | No different | 12.2 per 1,000 likely 9.1 per 1,000 – 16.4 per 1,000 | 13 per 1,000 |
| Unplanned visits after outpatient surgery 111 cases | No different | 0.9 likely 0.7 – 1.3 | — |
3 more measures had too few cases here to report.
Money from drug and device companies
Drug and device makers have to report what they pay teaching hospitals to CMS's Open Payments program. At many teaching hospitals most of it is research funding, or royalties for inventions the hospital licensed to a company. A payment on its own does not show a conflict of interest.
- 2019 $66,276
- 2020 $50,023
- 2021 $150,714
- 2022 $60,174
- 2023 $51,015
- 2024 $8,986
- 2025 $20,561
What the 2025 general payments were for
| Type of payment | Amount | Payments |
|---|---|---|
| Medical devices and supplies on long-term loan | $10,720 | 2 |
| Debt forgiveness | $9,841 | 3 |
Largest paying companies, 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $10,720 | 2 |
| Zimmer Biomet Holdings, Inc. | $4,681 | 1 |
| Biotronik INC. | $3,995 | 1 |
| Fisher Scientific Company L.L.C. | $1,165 | 1 |
Amounts are as the paying companies reported them to CMS; Open Payments data retrieved 13 Sep 2026. Full record on CMS Open Payments.
How to read this page
- Everything here is published by CMS on Care Compare. We arrange it and explain it; the star ratings and the better / worse verdicts are CMS's, not ours.
- “No different” is the most common result on most measures at most hospitals. CMS only calls a result better or worse when the difference from the national rate is statistically clear.
- Death, complication and readmission rates are adjusted by CMS for how sick patients were, so hospitals that treat sicker patients can be compared fairly.
- Infection results are ratios: 1.0 means as many infections as CMS predicted for a hospital like this one, below 1.0 is fewer.
- These are hospital-wide results. They do not rate an individual doctor, nurse or department, and they are not medical advice.
CMS Care Compare data retrieved 4 Oct 2026, refreshed weekly. Where this data comes from and how we handle it · Report an error
Common questions about Ascension Genesys Hospital
Is Ascension Genesys Hospital a good hospital?
Ascension Genesys Hospital has a CMS overall rating of 3 out of 5 stars. Of the 24 death, complication, infection and readmission measures CMS could compare, it does better than the nation on 2 and worse on none. These are hospital-wide results published by CMS; they do not rate individual doctors or departments.
Would patients recommend Ascension Genesys Hospital?
58% of patients who answered CMS's national survey would definitely recommend it, against a US average of 71%. The figure comes from 680 completed HCAHPS surveys.
How long is the wait in the Ascension Genesys Hospital emergency room?
Emergency patients spend a median of 3 h 51 min in its emergency department before leaving (US median 2 h 42 min). These are medians over a year of visits, not a live wait time.
Does Ascension Genesys Hospital receive money from drug and device companies?
Drug and device makers reported $20,561 in payments to Ascension Genesys Hospital for 2025, under the federal Open Payments program. A payment on its own does not show a conflict of interest.