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Home / Hospitals / Idaho

Best Hospitals in Idaho, Graded A–F

All 26 graded Medicare-certified hospitals in Idaho, scored from CMS Care Compare — overall rating, mortality, safety of care and readmissions — against Idaho 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 — Idaho
A1
B9
C9
D6
F1
Highest graded
ASt Luke's Regional Medical C...A
Boise · CMS overall rating 5 of 5 — top quarter...See grade
26 hospitalsgraded in Idaho · 1 earned an A
All Idaho Boise (4)Idaho Falls (3)Nampa (2)Blackfoot (1)Burley (1)Caldwell (1)Coeur D'alene (1)Kellogg (1)Ketchum (1)
Highest in Idaho 1

St Luke's Regional Medical Center - Boise, ID · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top quarter among Idaho acute care hospitals
  • Mortality: 1 measure better than the national rate, 1 worse, of 8
  • Safety: 2 measures better than the national rate, 0 worse, of 8
AScore 79 · ExcellentSee Full Grade
(208) 381-2222 Boise, ADA County Emergency dept. Birthing-Friendly
2

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

  • CMS overall rating 5 of 5 — top quarter among Idaho acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 4
  • Safety: 0 measures better than the national rate, 0 worse, of 4
BScore 67 · GoodSee Full Grade
(208) 422-1000 Boise, ADA County Emergency dept.
3

West Valley Medical Center - Caldwell, ID · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top quarter among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 4
  • Safety: 1 measure better than the national rate, 0 worse, of 2
BScore 66 · GoodSee Full Grade
(208) 459-4641 Caldwell, CANYON County Emergency dept.
4

Bingham Memorial Hospital - Blackfoot, ID · Critical access hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • Mortality: 0 measures better than the national rate, 0 worse, of 2
  • Safety: 0 measures better than the national rate, 0 worse, of 2
  • Readmission: 1 measure better than the national rate, 0 worse, of 7
BScore 63 · GoodSee Full Grade
(208) 785-4100 Blackfoot, BINGHAM County Emergency dept.
5

Gritman Medical Center - Moscow, ID · Critical access hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — above median among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 4
  • Readmission: 1 measure better than the national rate, 0 worse, of 7
BScore 63 · GoodSee Full Grade
(208) 882-4511 Moscow, LATAH County Emergency dept.
6

Shoshone Medical Center - Kellogg, ID · Critical access hospital · government - hospital district or authority CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — above median among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 3
  • Readmission: 1 measure better than the national rate, 0 worse, of 4
BScore 63 · GoodSee Full Grade
(208) 784-1221 Kellogg, SHOSHONE County Emergency dept.
7

Eastern Idaho Regional Medical Center - Idaho Falls, ID · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — bottom quarter among Idaho 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 7
BScore 63 · GoodSee Full Grade
(208) 529-6111 Idaho Falls, BONNEVILLE County Emergency dept. Birthing-Friendly
8

St Luke's Elmore Medical Center - Mountain Home, ID · Critical access hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 3
  • Readmission: 0 measures better than the national rate, 0 worse, of 4
BScore 62 · GoodSee Full Grade
(208) 587-8401 Mountain Home, ELMORE County Emergency dept. Birthing-Friendly
9

Kootenai Health - Coeur D'alene, ID · Acute care hospital · government - hospital district or authority CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 1 worse, of 8
  • Safety: 4 measures better than the national rate, 0 worse, of 7
BScore 60 · GoodSee Full Grade
(208) 625-4000 Coeur D'alene, KOOTENAI County Emergency dept. Birthing-Friendly
10

St Luke's Wood River Medical Center - Ketchum, ID · Critical access hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — top quarter among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 3
  • Readmission: 0 measures better than the national rate, 0 worse, of 7
BScore 58 · GoodSee Full Grade
(208) 727-8800 Ketchum, BLAINE County Emergency dept. Birthing-Friendly
11

St Lukes Magic Valley Medical Center - Twin Falls, ID · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 7
  • Safety: 1 measure better than the national rate, 0 worse, of 6
CScore 58 · AverageSee Full Grade
(208) 814-1000 Twin Falls, TWIN FALLS County Emergency dept. Birthing-Friendly
12

St Luke's Nampa Medical Center - Nampa, ID · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top quarter among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 6
  • Safety: 1 measure better than the national rate, 0 worse, of 5
CScore 53 · AverageSee Full Grade
(208) 505-2000 Nampa, CANYON County Emergency dept. Birthing-Friendly
13

Saint Alphonsus Regional Medical Center - Boise, ID · Acute care hospital · voluntary non-profit - church CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — bottom quarter among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 1 worse, of 8
  • Safety: 2 measures better than the national rate, 0 worse, of 7
CScore 49 · AverageSee Full Grade
(208) 367-2121 Boise, ADA County Emergency dept. Birthing-Friendly
14

Cassia Regional Hospital - Burley, ID · Critical access hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — above median among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 3
  • Safety: 0 measures better than the national rate, 0 worse, of 1
CScore 48 · AverageSee Full Grade
(208) 678-4444 Burley, CASSIA County Emergency dept. Birthing-Friendly
15

Steele Memorial Medical Center - Salmon, ID · Critical access hospital · government - local CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — above median among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 3
  • Safety: 0 measures better than the national rate, 0 worse, of 1
CScore 48 · AverageSee Full Grade
(208) 756-5600 Salmon, LEMHI County Emergency dept.
16

Franklin County Medical Center - Preston, ID · Critical access hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — above median among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 3
  • Readmission: 1 measure better than the national rate, 1 worse, of 4
CScore 47 · AverageSee Full Grade
(208) 852-0137 Preston, FRANKLIN County Emergency dept.
17

Portneuf Medical Center - Pocatello, ID · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 8
  • Safety: 1 measure better than the national rate, 0 worse, of 7
CScore 45 · AverageSee Full Grade
(208) 239-1000 Pocatello, BANNOCK County Emergency dept. Birthing-Friendly
18

Saint Alphonsus Medical Center - Nampa - Nampa, ID · Acute care hospital · voluntary non-profit - church CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — bottom quarter among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 7
  • Safety: 1 measure better than the national rate, 0 worse, of 7
CScore 45 · AverageSee Full Grade
(208) 463-5000 Nampa, CANYON County Emergency dept. Birthing-Friendly
19

Idaho Falls Community Hospital, Llc - Idaho Falls, ID · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 6
  • Safety: 0 measures better than the national rate, 0 worse, of 5
CScore 43 · AverageSee Full Grade
(208) 528-1000 Idaho Falls, BONNEVILLE County Emergency dept.
20

Northwest Specialty Hospital - Post Falls, ID · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • Mortality: 0 measures better than the national rate, 0 worse, of 1
  • Safety: 0 measures better than the national rate, 0 worse, of 2
  • Readmission: 1 measure better than the national rate, 0 worse, of 4
DScore 40 · Below averageSee Full Grade
(208) 262-2300 Post Falls, KOOTENAI County
21

Treasure Valley Hospital - Boise, ID · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • Mortality: 0 measures better than the national rate, 0 worse, of 1
  • Safety: 0 measures better than the national rate, 0 worse, of 1
  • Readmission: 1 measure better than the national rate, 0 worse, of 2
DScore 40 · Below averageSee Full Grade
(208) 373-5000 Boise, ADA County
22

Bonner General Hospital - Sandpoint, ID · Critical access hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 2 of 5 — bottom quarter among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 1 worse, of 4
  • Safety: 0 measures better than the national rate, 0 worse, of 2
DScore 38 · Below averageSee Full Grade
(208) 263-1441 Sandpoint, BONNER County Emergency dept.
23

Clearwater Valley Hospital & Clinics - Orofino, ID · Critical access hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 2 of 5 — bottom quarter among Idaho critical access hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 5
  • Readmission: 0 measures better than the national rate, 0 worse, of 4
DScore 34 · Below averageSee Full Grade
(208) 476-4555 Orofino, CLEARWATER County Emergency dept.
24

Madison Memorial Hospital - Rexburg, ID · Acute care hospital · government - local CMS Care Compare · data as of Sep 2026

  • Mortality: 0 measures better than the national rate, 0 worse, of 2
  • Safety: 0 measures better than the national rate, 0 worse, of 2
  • Readmission: 0 measures better than the national rate, 0 worse, of 7
DScore 30 · Below averageSee Full Grade
(208) 359-6488 Rexburg, MADISON County Emergency dept.
25

Mountain View Hospital - Idaho Falls, ID · Acute care hospital · physician CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — bottom quarter among Idaho acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 1
  • Safety: 0 measures better than the national rate, 0 worse, of 5
DScore 28 · Below averageSee Full Grade
(208) 557-2700 Idaho Falls, BONNEVILLE County Emergency dept. Birthing-Friendly
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Idaho 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 Idaho 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.