Lost Rivers Medical Center in Arco, ID
Also known as Lost River Hospital
In a medical emergency, call 911. This page is for information only.
About Lost Rivers Medical Center
Lost Rivers Medical Center is a critical access hospital in Arco, Butte County, Idaho. It reports its ownership to Medicare as public (hospital district or authority). It provides emergency services. It is listed as a Level IV trauma center. It does not currently have a CMS Overall Star Rating, which usually means it reports too few measures to be rated. It has 14 licensed beds, according to state license data via HIFLD.
Quality ratings
How this hospital compares with the national rate on each measure group:
Source: Centers for Medicare & Medicaid Services, Hospital General Information. How star ratings work.
Emergency room times
Lower times are better. Reporting period ending September 2025. Source: CMS Timely and Effective Care. What these numbers mean.
Map
43.64048, -113.29662
Frequently asked questions
Where is Lost Rivers Medical Center located?
Lost Rivers Medical Center is at 551 Highland Drive, Arco, ID 83213 in Butte County.
Does Lost Rivers Medical Center have an emergency room?
Yes. Lost Rivers Medical Center reports emergency services to Medicare, and patients spent a median of 95 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.
What is the CMS star rating of Lost Rivers Medical Center?
Lost Rivers Medical Center does not have a current CMS Overall Star Rating. CMS only rates hospitals that report enough measures; critical access, psychiatric, VA and many small hospitals are often unrated, which says nothing about their quality.
Is Lost Rivers Medical Center a trauma center?
Yes. It is listed as a Level IV trauma center in the HIFLD hospitals data, which is compiled from state trauma registries (source date February 2024). Trauma designations are renewed periodically, so confirm with the Idaho EMS or trauma program. In an emergency, call 911: paramedics take seriously injured patients to the right trauma center.
What is the phone number of Lost Rivers Medical Center?
The main phone number on record with Medicare is (208) 252-7654.
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