Ohio · Acute Care

Mount Carmel St Ann's

Mount Carmel St Ann's holds a 4 of 5 CMS overall star rating - above the national average of 3.1 - in Westerville, OH.

4★
CMS overall rating
63th
National percentile
20
Quality measures
6
Infection types

Data currency: Hospital quality, safety, and patient-experience measures from the CMS Care Compare program (published quarterly), last refreshed May 2026. See our methodology for source dates. Spot a figure that looks wrong? Report a correction.

500 South Cleveland Avenue, Westerville, OH 43081 · Franklin County · (614) 546-4034

The verdict

Mount Carmel St Ann's earns 4 of 5 stars from CMS - above the 3.1-star national average, and reports 3 quality measures better than the national benchmark.

4 / 5
CMS overall star rating
Higher than 63%
of 2,866 rated US hospitals
3
measures better than national of 23 compared
Yes
emergency department on site

Where Mount Carmel St Ann's sits among rated US hospitals

4 Top 37% higher than 63% of 2,866 rated hospitals

1–2: 229 rated hospitals (8%). Below this entry. 2–3: 649 rated hospitals (23%). Below this entry. 3–4: 935 rated hospitals (33%). Below this entry. 4–5: 765 rated hospitals (27%). This entry sits in this band. 5–6: 288 rated hospitals (10%). Above this entry. This hospital 1★ 5★ CMS star rating (1–5 stars), bucketed by value

Each bar is a band; taller bars hold more rated hospitals. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Hospital Compare, overall hospital rating · 2026-05-15

Mount Carmel St Ann's vs. Ohio and the nation

stars

What this shows At 4 stars, Mount Carmel St Ann's rates above the Ohio average of 3.4 and above the national average of 3.1.

Source CMS Hospital Compare As of 2026-05-15
Type
Acute Care Hospitals
Ownership
Voluntary non-profit - Private
Emergency Services
Yes
Birthing Friendly
Yes

Complications & Deaths Measures

20

CMS-tracked

Patient Experience

17

HCAHPS domains

Infection Types

6

CDC NHSN

CMS Overall Star Rating 80.0%

4 of 5 stars

Quality profile vs. the national benchmark

Mortality 7 measures
Safety of care 7 measures
Readmission 9 measures
Better than national Same as national Worse than national

Quality Measures

Measure Score vs. National
Abdominopelvic accidental puncture or laceration rate 0.86 Same as National
CMS Medicare PSI 90: Patient safety and adverse events composite 0.84 Same as National
Death rate among surgical inpatients with serious treatable complications 172.8 Same as National
Death rate for CABG surgery patients N/A Number of Cases Too Small
Death rate for COPD patients 9.3 Same as National
Death rate for heart attack patients 13 Same as National
Death rate for heart failure patients 14.6 Same as National
Death rate for pneumonia patients 18.5 Same as National
Death rate for stroke patients 13.2 Same as National
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate 3.9 Same as National
Iatrogenic pneumothorax rate 0.22 Same as National
In-hospital fall-associated fracture rate 0.23 Same as National
Perioperative pulmonary embolism or deep vein thrombosis rate 3.42 Same as National
Postoperative acute kidney injury requiring dialysis rate 1.49 Same as National
Postoperative hemorrhage or hematoma rate 2.33 Same as National

Patient Experience (HCAHPS)

Experience profile vs. the national average

Radar chart 6-axis radar comparing 1 series across Nurse comms, Doctor comms, Medicine comms, Discharge info, Cleanliness, Quietness. Nurse commsDoctor commsMedicine commsDischarge infoCleanlinessQuietness National average

Source: CMS Hospital Compare, HCAHPS patient survey star ratings.

Survey Question Star Rating
Cleanliness - linear mean score
N/A
Cleanliness - star rating
2
Communication about medicines - linear mean score
N/A
Communication about medicines - star rating
2
Discharge information - linear mean score
N/A
Discharge information - star rating
3
Doctor communication - linear mean score
N/A
Doctor communication - star rating
3
Nurse communication - linear mean score
N/A
Nurse communication - star rating
3
Overall hospital rating - linear mean score
N/A
Overall hospital rating - star rating
3
Quietness - linear mean score
N/A
Quietness - star rating
2
Recommend hospital - linear mean score
N/A
Recommend hospital - star rating
3
Summary star rating
3

Safety & Infections

Measure Score vs. National
Catheter Associated Urinary Tract Infections (ICU + select Wards) 0.307 Same as National
Central Line Associated Bloodstream Infection (ICU + select Wards) 0.727 Same as National
Clostridium Difficile (C.Diff) 0.162 Better than National
MRSA Bacteremia 1.564 Same as National
SSI - Abdominal Hysterectomy 1.577 Same as National
SSI - Colon Surgery 0.363 Same as National

Staffing & Spending

Unplanned Visits & Readmissions

Measure Score vs. National
Acute Myocardial Infarction (AMI) 30-Day Readmission Rate 14.5 Same as National
Heart failure (HF) 30-Day Readmission Rate 18 Same as National
Hospital return days for heart attack patients 27 More Days Than Average per 100 Discharges
Hospital return days for heart failure patients -44.2 Fewer Days Than Average per 100 Discharges
Hospital return days for pneumonia patients -2 Average Days per 100 Discharges
Hybrid Hospital-Wide All-Cause Readmission Measure (HWR) 15.1 Same as National
Pneumonia (PN) 30-Day Readmission Rate 15.4 Same as National
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy 5.7 Same as National
Rate of inpatient admissions for patients receiving outpatient chemotherapy 10.7 Same as National
Rate of readmission after hip/knee replacement 5.2 Same as National
Rate of readmission for CABG N/A Number of Cases Too Small
Rate of readmission for chronic obstructive pulmonary disease (COPD) patients 18.1 Same as National
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies) 13.4 Same as National
Ratio of unplanned hospital visits after hospital outpatient surgery 1.1 Same as National

Medicare Spending

Measure Score
Medicare hospital spending per patient (Medicare Spending per Beneficiary) 1.01

Maternal Health

Measure Score
Cesarean Birth N/A
Maternal Morbidity Structural Measure N/A
Risk Adjusted Severe Obstetric Complications (All) N/A
Risk Adjusted Severe Obstetric Complications (excluding blood-transfusion-only cases) N/A

Nearby Hospitals in Ohio

Other Medicare-certified hospitals in Ohio.

Compare Mount Carmel St Ann's vs 88th Medical Group (Wright-Patterson AFB) →

Frequently Asked Questions

What is the CMS star rating for Mount Carmel St Ann's?

Mount Carmel St Ann's has an overall CMS star rating of 4 out of 5, above the 3.1-star national average.

How does Mount Carmel St Ann's perform on quality measures?

3 of 23 compared mortality, safety, and readmission measures rate better than the national average at Mount Carmel St Ann's; 0 rate worse.

What do patients say about Mount Carmel St Ann's?

Mount Carmel St Ann's reports 17 HCAHPS patient-experience domain scores. Star ratings range from 2 to 3 out of 5.

What are the infection rates at Mount Carmel St Ann's?

Mount Carmel St Ann's tracks 6 healthcare-associated infection types (CDC NHSN). 1 are better than the national benchmark, 0 are worse, and 5 are at the national average.

Does Mount Carmel St Ann's have emergency services?

Yes, Mount Carmel St Ann's provides emergency services.

What type of hospital is Mount Carmel St Ann's?

Mount Carmel St Ann's is a Acute Care Hospitals facility with Voluntary non-profit - Private ownership, located in Westerville, OH. This facility has received the CMS Birthing-Friendly designation.

How much does Medicare spend at Mount Carmel St Ann's?

1 Medicare spending category is on file for Mount Carmel St Ann's, per episode vs. the national median.

Does Mount Carmel St Ann's offer maternal health services?

Yes, Mount Carmel St Ann's reports 4 maternal health measures. This facility has been designated as Birthing-Friendly by CMS.

Data Sources

Source: Centers for Medicare & Medicaid Services (CMS) Hospital Compare. Last refreshed from CMS: . About PlainHospital

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Every figure on PlainHospital is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.