State hospital quality · CMS Hospital Compare
Best CMS-rated hospitals in Idaho
According to PlainHospital's state average CMS-star ranking, Idaho ranks #8 of 54 states and territories by average overall star rating among rated hospitals (highest = #1).
- 48
- Hospitals
- #8 of 54
- Corpus placement
- 3.5★
- Avg (22 rated)
- 5
- Five-star
- 40
- With ER
Idaho vs all states by Medicare hospital count
Where this state's Medicare-certified hospital inventory sits among every tracked state and territory (inventory signal, not a quality ranking)
48 39th of 56 higher than 17 of 56 states
States and territories, banded by Medicare-certified hospital count
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source CMS Hospital Compare · 2026-08-14
The state picture
According to PlainHospital's state average CMS-star ranking, Idaho ranks #8 of 54 states and territories by average overall star rating among rated hospitals (highest = #1). Among 22 rated hospitals, the state averages 3.5 of 5 stars.
- 3.5 / 5
- state average among rated (above 3.2 national)
- #8 of 54
- state corpus placement by avg star
- 5
- five-star hospitals
- 22 of 48 rated
- hospitals with a CMS overall rating
CMS star ratings are composite quality scores; 22 of 48 Idaho hospitals had enough reporting volume to receive one. Not medical advice.
Idaho hospital quality
Idaho averages 3.5/5 CMS stars across 22 rated hospitals (above the 3.2 national average), with 5 five-star facilities of 48 Medicare-certified hospitals.
PlainHospital ranks Idaho hospitals from CMS Hospital Compare overall star ratings (mortality, safety, readmission, patient experience, timely care). Corpus placement: #8 of 54 states and territories by average overall star among rated hospitals. 22 of 48 facilities had enough volume to receive a star; the rest stay unrated. Not medical advice - open a hospital page for the measure-level detail.
CMS star-rating mix in Idaho
How 22 rated Idaho hospitals break down across the 1–5 star scale
- 5★
5-star hospitals
5 hospitals
- 4★
4-star hospitals
5 hospitals
- 3★
3-star hospitals
9 hospitals
- 2★ 3
2-star hospitals
3 hospitals
- 1★ 0
1-star hospitals
0 hospitals
What this shows 5 Idaho hospitals reach five stars; the state's 3.5-star average sits above the 3.2-star national mark.
What the Data Shows About Hospitals in Idaho
Idaho has 48 Medicare-certified hospitals tracked by the Centers for Medicare & Medicaid Services (CMS) Hospital Compare program. Of these, 40 facilities operate an emergency department, an important signal for communities that rely on nearby acute-care access. The statewide average CMS overall star rating is 3.5 out of 5 , calculated across the 22 of 48 hospitals with enough reporting volume to generate a composite rating.
At the top of the quality distribution, 5 hospitals have earned the highest 5-star CMS overall rating in Idaho. The single highest-rated facility in the state registry is Boise VA Medical Center in Boise, currently listed at 5/5 stars. Star ratings are composite scores built from mortality, safety of care, readmission, patient experience (HCAHPS), and timely & effective care domains, so a single number conceals meaningful per-domain variation that matters for specific procedures.
Showing 48 of 48 hospitals on this page (page 1 of 1). Hospital quality varies materially within a state, urban academic centers, rural critical-access hospitals, and specialty facilities report against different baselines, so comparing individual facility profiles before choosing planned care is more useful than relying on the statewide average alone. All figures reflect the CMS Hospital Compare release from , and nothing on this page is medical advice, consult a qualified clinician before making care decisions.
Top-Rated in Idaho
Highest CMS star ratings among Medicare-certified hospitals in Idaho.
- 🥇1 Boise VA Medical Center ★★★★★
- 🥈2 St Luke's Elmore Medical Center ★★★★★
- 🥉3 St Luke's Nampa Medical Center ★★★★★
- 4 St Luke's Regional Medical Center ★★★★★
- 5 West Valley Medical Center ★★★★★
- 6 Idaho Falls Community Hospital, LLC ★★★★
Compare Boise VA Medical Center vs St Luke's Elmore Medical Center →
All Hospitals
Showing 1–48 of 48 hospitals
Hospital Quality in Idaho
Idaho has 48 Medicare-certified hospitals tracked by the Centers for Medicare & Medicaid Services (CMS). Of these, 5 have earned the highest 5-star overall quality rating, reflecting strong performance across mortality, safety of care, readmission rates, patient experience, and timely and effective care measures.
The average CMS star rating across the 22 rated of 48 Idaho hospitals is 3.5. 40 facilities have emergency departments, an important factor for communities that depend on nearby acute care. Hospital quality can vary significantly within a state, so comparing individual facility ratings before choosing care is recommended.
Frequently Asked Questions
What is the best hospital in Idaho?
The highest-rated hospital in Idaho is Boise VA Medical Center in Boise with a CMS star rating of 5/5. There are 5 five-star hospitals in the state out of 48 Medicare-certified facilities.
How are hospitals rated?
CMS rates hospitals on a 1-to-5 star scale based on quality measures including mortality, safety, patient experience, readmission rates, and timely care. In Idaho, the average star rating is 3.5 across rated hospitals.
How many hospitals are in Idaho?
Idaho has 48 Medicare-certified hospitals, of which 40 have emergency departments. 5 hospitals have earned the highest 5-star CMS rating.
Data sources
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.