RankingRight
ElectronicsForm a companyKids Learning AppsLaptopsMattressesOnline CoursesTravel InsuranceVPN ServicesVideo Editing SoftwareAntivirus SoftwareCell Phone PlansHome & kitchenHospitalsLanguage Learning AppsNoise-Cancelling HeadphonesNursing HomesParental Control AppsPhoto Editing SoftwarePillowsSoftware & AppsWeb HostingBaby MonitorsDomain RegistrarsEducationHomework Help & Study ToolsPassword ManagersPayrollCRMFamily & KidsJob Search SitesSTEM Kits for KidsPayments & POSTravel & eSIMWebsite Builders How We Rank How We Make Money Search
Home / Hospitals / Connecticut

Best Hospitals in Connecticut, Graded A–F

All 26 graded Medicare-certified hospitals in Connecticut, scored from CMS Care Compare — overall rating, mortality, safety of care and readmissions — against Connecticut hospitals of the same type. Grades are computed, never edited, and every input is shown on the hospital page.

CMS data as of Sep 2026 · graded Sep 11, 2026
Grade distribution — Connecticut
A3
B7
C4
D9
F3
Highest graded
AYale-New Haven HospitalA
New Haven · CMS overall rating 5 of 5 — top 10% amon...See grade
26 hospitalsgraded in Connecticut · 3 earned an A
All Connecticut Bridgeport (2)Hartford (2)Waterbury (2)Bristol (1)Danbury (1)Derby (1)Farmington (1)Greenwich (1)Manchester (1)
Highest in Connecticut 1

Yale-New Haven Hospital - New Haven, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among Connecticut acute care hospitals
  • Mortality: 4 measures better than the national rate, 0 worse, of 8
  • Safety: 4 measures better than the national rate, 0 worse, of 8
AScore 90 · ExcellentSee Full Grade
(203) 688-4242 New Haven, NEW HAVEN County Emergency dept. Birthing-Friendly
2

Bridgeport Hospital - Bridgeport, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Connecticut acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
  • Safety: 3 measures better than the national rate, 0 worse, of 8
AScore 78 · ExcellentSee Full Grade
(203) 384-3000 Bridgeport, FAIRFIELD County Emergency dept. Birthing-Friendly
3

Stamford Hospital - Stamford, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 8
  • Safety: 3 measures better than the national rate, 0 worse, of 8
AScore 75 · ExcellentSee Full Grade
(203) 276-1000 Stamford, FAIRFIELD County Emergency dept. Birthing-Friendly
4

Manchester Memorial Hospital - Manchester, CT · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Connecticut acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 5
  • Safety: 2 measures better than the national rate, 0 worse, of 7
BScore 71 · GoodSee Full Grade
(860) 647-4780 Manchester, HARTFORD County Emergency dept. Birthing-Friendly
5

Hartford Hospital - Hartford, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Connecticut acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
  • Safety: 5 measures better than the national rate, 0 worse, of 8
BScore 70 · GoodSee Full Grade
(860) 545-5000 Hartford, HARTFORD County Emergency dept. Birthing-Friendly
6

Midstate Medical Center - Meriden, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 7
  • Safety: 3 measures better than the national rate, 0 worse, of 7
BScore 68 · GoodSee Full Grade
(203) 694-8200 Meriden, NEW HAVEN County Emergency dept. Birthing-Friendly
7

Greenwich Hospital Association - - Greenwich, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among Connecticut acute care hospitals
  • Mortality: 3 measures better than the national rate, 0 worse, of 7
  • Safety: 1 measure better than the national rate, 0 worse, of 7
BScore 63 · GoodSee Full Grade
(203) 863-3000 Greenwich, FAIRFIELD County Emergency dept. Birthing-Friendly
8

Waterbury Hospital - Waterbury, CT · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 2 of 5 — bottom quarter among Connecticut acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 8
  • Safety: 2 measures better than the national rate, 0 worse, of 6
BScore 60 · GoodSee Full Grade
(203) 573-6000 Waterbury, NEW HAVEN County Emergency dept. Birthing-Friendly
9

St Vincent's Medical Center - Bridgeport, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Connecticut acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 8
  • Safety: 1 measure better than the national rate, 0 worse, of 7
BScore 59 · GoodSee Full Grade
(203) 576-5551 Bridgeport, FAIRFIELD County Emergency dept. Birthing-Friendly
10

William W Backus Hospital - Norwich, CT · Acute care hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Connecticut acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 7
  • Safety: 1 measure better than the national rate, 0 worse, of 7
BScore 59 · GoodSee Full Grade
(860) 889-8331 Norwich, NEW LONDON County Emergency dept. Birthing-Friendly
11

Danbury Hospital - Danbury, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 8
  • Safety: 4 measures better than the national rate, 0 worse, of 8
CScore 54 · AverageSee Full Grade
(203) 739-7000 Danbury, FAIRFIELD County Emergency dept. Birthing-Friendly
12

Saint Mary's Hospital - Waterbury, CT · Acute care hospital · voluntary non-profit - church CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 7
  • Safety: 2 measures better than the national rate, 0 worse, of 6
CScore 52 · AverageSee Full Grade
(203) 709-6020 Waterbury, NEW HAVEN County Emergency dept. Birthing-Friendly
13

Norwalk Hospital - Norwalk, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 7
  • Safety: 1 measure better than the national rate, 0 worse, of 6
CScore 51 · AverageSee Full Grade
(203) 852-2000 Norwalk, FAIRFIELD County Emergency dept. Birthing-Friendly
14

West Haven Va Medical Center - West Haven, CT · Acute care hospital · veterans health administration CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 5
  • Safety: 0 measures better than the national rate, 0 worse, of 3
CScore 44 · AverageSee Full Grade
(203) 932-5711 West Haven, NEW HAVEN County Emergency dept.
15

Charlotte Hungerford Hospital - Torrington, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 5
  • Safety: 1 measure better than the national rate, 0 worse, of 6
DScore 41 · Below averageSee Full Grade
(860) 496-6666 Torrington, LITCHFIELD County Emergency dept. Birthing-Friendly
16

Sharon Hospital - Sharon, CT · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 5
  • Safety: 0 measures better than the national rate, 0 worse, of 3
DScore 40 · Below averageSee Full Grade
(860) 364-4228 Sharon, LITCHFIELD County Emergency dept. Birthing-Friendly
17

Windham Community Memorial Hospital - Willimantic, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 5
  • Safety: 0 measures better than the national rate, 0 worse, of 2
DScore 40 · Below averageSee Full Grade
(860) 456-9116 Willimantic, WINDHAM County Emergency dept.
18

Lawrence & Memorial Hospital - New London, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 7
  • Safety: 3 measures better than the national rate, 0 worse, of 6
DScore 38 · Below averageSee Full Grade
(860) 442-0711 New London, NEW LONDON County Emergency dept. Birthing-Friendly
19

Griffin Hospital - Derby, CT · Acute care hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 5
  • Safety: 1 measure better than the national rate, 0 worse, of 7
DScore 37 · Below averageSee Full Grade
(203) 732-7500 Derby, NEW HAVEN County Emergency dept. Birthing-Friendly
20

The Hospital Of Central Connecticut - New Britain, CT · Acute care hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 2 of 5 — bottom quarter among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 7
  • Safety: 3 measures better than the national rate, 0 worse, of 7
DScore 36 · Below averageSee Full Grade
(860) 224-5011 New Britain, HARTFORD County Emergency dept. Birthing-Friendly
21

John Dempsey Hospital Of The University Of Connect - Farmington, CT · Acute care hospital · government - local CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 1 measure better than the national rate, 1 worse, of 7
  • Safety: 1 measure better than the national rate, 0 worse, of 6
DScore 34 · Below averageSee Full Grade
(860) 679-1145 Farmington, HARTFORD County Emergency dept. Birthing-Friendly
22

Johnson Memorial Hospital - Stafford Springs, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 4
  • Safety: 0 measures better than the national rate, 0 worse, of 2
DScore 34 · Below averageSee Full Grade
(860) 684-4251 Stafford Springs, TOLLAND County Emergency dept.
23

St Francis Hospital & Medical Center - Hartford, CT · Acute care hospital · voluntary non-profit - church CMS Care Compare · data as of Sep 2026

  • CMS overall rating 2 of 5 — bottom quarter among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 1 worse, of 8
  • Safety: 2 measures better than the national rate, 1 worse, of 8
DScore 33 · Below averageSee Full Grade
(860) 714-5541 Hartford, HARTFORD County Emergency dept. Birthing-Friendly
24

Bristol Hospital - Bristol, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 2 of 5 — bottom quarter among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 5
  • Safety: 0 measures better than the national rate, 0 worse, of 4
FScore 27 · PoorSee Full Grade
(860) 585-3000 Bristol, HARTFORD County Emergency dept. Birthing-Friendly
25

Middlesex Hospital - Middletown, CT · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among Connecticut acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 7
  • Safety: 1 measure better than the national rate, 1 worse, of 7
FScore 26 · PoorSee Full Grade
(860) 344-6000 Middletown, MIDDLESEX County Emergency dept. Birthing-Friendly
1 2 25 per page · page 2+ noindex

Connecticut hospitals by city

How we grade hospitals

What data goes into a grade?
CMS Care Compare Hospital General Information: CMS overall rating (25), Mortality (25), Safety of care (25), Readmission (25). Each metric is percentile-ranked against Connecticut hospitals of the same type; A ≥ 72, B ≥ 58, C ≥ 42, D ≥ 28, F below. Hospitals with fewer than three of the four metrics are shown as "Not graded".
Why is a well-known hospital graded C?
The grade measures outcomes CMS reports — death rates, complications, infections, readmissions — not reputation, research or specialist rankings. A large teaching hospital that treats the sickest patients can score average on these measures. Use the grade as one input, alongside the specialists you need.
Can a hospital pay to improve its grade?
No. Grades are computed from public data and have no editable field. Nothing on this page is sponsored.