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Hospitals in Massachusetts with the lowest CABG surgery death rate

13 Massachusetts hospitals ranked by CABG surgery death rate in the 2026 Medicare (CMS) data. Leading: Massachusetts General Hospital, Tufts Medical Center, Mount Auburn Hospital. Filter by type, ownership and size, choose the measures you care about, and sort by any column.

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13 hospitals ranked in Massachusetts by cabg surgery death rate; 71 more match but have no reported value.

Compare top 4 Download CSV
#HospitalCABG surgery death ratelower is betterOverall star ratinghigher is betterPatient survey star ratinghigher is betterHeart attack death ratelower is betterHeart failure death ratelower is betterHospital-wide readmission ratelower is better · 2025 dataSerious complicationslower is betterTime in emergency departmentlower is betterMedicare spending per patientlower is betterTotal beds
National average2.4%3.311.9%11.1%15.0%1.00162 min1.00
T1Massachusetts General HospitalBoston, MA · Acute care1.5%549.3%6.8%14.3%0.87288 min0.98907Compare
T1Tufts Medical CenterBoston, MA · Acute care1.5%2411.8%9.3%17.2%1.32208 min1.03415Compare
3Mount Auburn HospitalCambridge, MA · Acute care1.8%4311.0%9.6%15.5%1.09205 min0.98217Compare
4St Vincent HospitalWorcester, MA · Acute care2.0%2210.8%9.3%14.8%1.11206 min1.00283Compare
5Boston Medical Center-BrightonBrighton, MA · Acute care2.1%3311.5%9.7%16.4%0.79146 min1.06252Compare
T6Brigham And Women's HospitalBoston, MA · Acute care2.2%549.1%6.7%14.9%0.88300 min1.00663Compare
T6Southcoast Hospitals GroupFall River, MA · Acute care2.2%4311.6%10.1%15.0%1.09190 min1.02695Compare
T6UMass Memorial Medical Center/University CampusWorcester, MA · Acute care2.2%3311.0%10.3%14.9%0.97291 min1.02325Compare
T6Baystate Medical CenterSpringfield, MA · Acute care2.2%2211.8%12.7%16.4%1.69286 min1.03716Compare
10Beth Israel Deaconess Medical CenterBoston, MA · Acute care2.3%3411.3%6.9%16.0%1.03336 min0.98597Compare
11Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute care2.4%4310.8%8.9%15.6%1.09226 min0.97327Compare
T12Boston Medical CenterBoston, MA · Acute care2.5%3311.7%6.6%15.3%1.14227 min1.00441Compare
T12Cape Cod HospitalHyannis, MA · Acute care2.5%2311.5%11.4%16.5%0.99201 min0.97259Compare

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.
Overall star rating
CMS overall hospital quality star rating (1-5).
Patient survey star rating
HCAHPS summary star rating (1-5).
Heart attack death rate
30-day death rate for heart attack patients.
Heart failure death rate
30-day death rate for heart failure 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.
Serious complications
Patient safety and adverse events composite (PSI 90; 1.0 = national value).
Time in emergency department
Median time patients spent in the emergency department before leaving.
Medicare spending per patient
Medicare spending per beneficiary episode relative to the national median (1.0 = national median).
Total beds
Total beds reported to CMS (Provider of Services file).