Hospital rankings
Hospitals in Colorado with the lowest CABG surgery death rate
13 Colorado hospitals ranked by CABG surgery death rate in the 2026 Medicare (CMS) data. Leading: Intermountain Health St. Mary's Regional Hospital, Boulder Community Health, Swedish Medical Center. Filter by type, ownership and size, choose the measures you care about, and sort by any column.
| # | Hospital | CABG surgery death ratelower is better | Heart attack death ratelower is better | Heart failure death ratelower is better | Pneumonia death ratelower is better | COPD death ratelower is better | Stroke death ratelower is better | Hospital-wide readmission ratelower is better · 2025 data | Compare |
|---|---|---|---|---|---|---|---|---|---|
| National average | 2.4% | 11.9% | 11.1% | 15.2% | 8.6% | 11.9% | 15.0% | ||
| 1 | Intermountain Health St. Mary's Regional Hospital | 1.5%, 96th percentile | 11.2%, 71st percentile | 13.1%, 14th percentile | 17.5%, 18th percentile | 9.2%, 31st percentile | 11.1%, 60th percentile | 13.9%, 94th percentile | Compare Intermountain Health St. Mary's Regional Hospital |
| T2 | Boulder Community Health | 1.9%, 78th percentile | 9.5%, 99th percentile | 7.5%, 97th percentile | 10.7%, 97th percentile | 8.7%, 43rd percentile | 12.3%, 39th percentile | 13.6%, 97th percentile | Compare Boulder Community Health |
| T2 | Swedish Medical Center | 1.9%, 78th percentile | 10.0%, 96th percentile | 10.8%, 54th percentile | 13.1%, 81st percentile | 8.3%, 54th percentile | 13.4%, 24th percentile | 15.4%, 23rd percentile | Compare Swedish Medical Center |
| T2 | UCH-Memorial Health System | 1.9%, 78th percentile | 9.2%, 99th percentile | 11.6%, 37th percentile | 14.5%, 61st percentile | 9.7%, 20th percentile | 13.0%, 28th percentile | 13.7%, 97th percentile | Compare UCH-Memorial Health System |
| T5 | AdventHealth Porter | 2.0%, 69th percentile | 11.2%, 71st percentile | 9.0%, 86th percentile | 15.4%, 46th percentile | 7.7%, 72nd percentile | 9.1%, 92nd percentile | 14.4%, 83rd percentile | Compare AdventHealth Porter |
| T5 | Centura Health-St Anthony Hospital | 2.0%, 69th percentile | 10.5%, 89th percentile | 13.2%, 13th percentile | 14.9%, 54th percentile | 9.4%, 26th percentile | 11.0%, 62nd percentile | 15.0%, 46th percentile | Compare Centura Health-St Anthony Hospital |
| T5 | Centura Health-Penrose St Francis Health Services | 2.0%, 69th percentile | 9.7%, 98th percentile | 9.3%, 82nd percentile | 14.0%, 69th percentile | 7.9%, 66th percentile | 11.7%, 49th percentile | 13.8%, 96th percentile | Compare Centura Health-Penrose St Francis Health Services |
| T8 | Medical Center Of The Rockies | 2.1%, 62nd percentile | 10.3%, 92nd percentile | 11.6%, 37th percentile | 12.0%, 91st percentile | 8.9%, 38th percentile | 11.0%, 62nd percentile | 13.1%, 99th percentile | Compare Medical Center Of The Rockies |
| T8 | Banner North Colorado Medical Center | 2.1%, 62nd percentile | 12.6%, 23rd percentile | 11.8%, 34th percentile | 17.6%, 17th percentile | 8.2%, 58th percentile | 9.7%, 85th percentile | 14.6%, 74th percentile | Compare Banner North Colorado Medical Center |
| T8 | Valley View Hospital Association | 2.1%, 62nd percentile | 10.6%, 87th percentile | 16.3%, 1st percentile | 14.5%, 61st percentile | 9.1%, 34th percentile | 10.1%, 79th percentile | 14.2%, 89th percentile | Compare Valley View Hospital Association |
| 11 | The Medical Center Of Aurora & South Hospital | 2.2%, 55th percentile | 10.1%, 95th percentile | 9.5%, 79th percentile | 14.4%, 63rd percentile | 9.2%, 31st percentile | 10.5%, 71st percentile | 13.5%, 98th percentile | Compare The Medical Center Of Aurora & South Hospital |
| 12 | University Of Colorado Hospital Authority | 2.5%, 38th percentile | 11.0%, 77th percentile | 7.9%, 95th percentile | 11.8%, 93rd percentile | 9.6%, 22nd percentile | 9.6%, 86th percentile | 14.3%, 86th percentile | Compare University Of Colorado Hospital Authority |
| 13 | AdventHealth Littleton | 2.6%, 33rd percentile | 10.7%, 85th percentile | 9.5%, 79th percentile | 13.3%, 79th percentile | 9.9%, 16th percentile | 10.5%, 71st percentile | 15.1%, 40th percentile | Compare AdventHealth Littleton |
About these rankings
Rankings use the 2026 release of CMS Care Compare data. Hospitals share a rank (“T”) when their values are equal, and only hospitals with a reported value for the sorted measure are ranked. Shading compares each value with every hospital in the country, so it doesn’t change with your filters. Small differences are often not statistically meaningful; use the methodology and glossary for context.
- CABG surgery death rate
- 30-day death rate for CABG surgery patients.
- Heart attack death rate
- 30-day death rate for heart attack patients.
- Heart failure death rate
- 30-day death rate for heart failure patients.
- Pneumonia death rate
- 30-day death rate for pneumonia patients.
- COPD death rate
- 30-day death rate for COPD patients.
- Stroke death rate
- 30-day death rate for stroke patients.
- Hospital-wide readmission rate
- Rate of unplanned readmission within 30 days, all conditions. From 2025 CMS reports the Hybrid Hospital-Wide Readmission measure (claims plus EHR data), which replaced the claims-only measure; values are close but not strictly comparable across the change. CMS suppressed it for 2026.. Latest available: 2025 release.