CMS did not publish an overall star rating for this hospital; hospitals that report too few quality measures are not rated.
Source: CMS Care Compare, July 2026 releaseER figures are medians, not live waitsAbout the data
Visiting Lost Rivers Medical Center
- Photo ID and your insurance, Medicare or Medicaid card
- A list of your medicines, doses and allergies
- Your doctor's name and phone number
- A phone charger
Nearby hospitals
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- 56mi Grove Creek Medical Center Blackfoot, ID Call Grove Creek Medical Center Directions to Grove Creek Medical Center (Google Maps) Details for Grove Creek Medical Center
- 57mi Bingham Memorial Hospital Blackfoot, ID · Emergency room · median ER visit 2 hr 40 min Call Bingham Memorial Hospital Directions to Bingham Memorial Hospital (Google Maps) Details for Bingham Memorial Hospital
Quick answers about Lost Rivers Medical Center
How long is the ER wait at Lost Rivers Medical Center?
CMS doesn't publish live wait times. Over the 12 months CMS reported, patients treated and sent home spent a median of 1 hr 35 min in the Lost Rivers Medical Center emergency room (the average across Idaho hospitals is 2 hr 11 min). 1% of ER patients left before being seen. For tonight's wait, call (208) 252-7654. In an emergency, call 911.
What is the phone number for Lost Rivers Medical Center?
The main phone number for Lost Rivers Medical Center is (208) 252-7654, from Medicare's hospital records.
Call (208) 252-7654What is the address of Lost Rivers Medical Center?
Lost Rivers Medical Center is at 551 Highland Drive, Arco, ID 83213.
Directions (opens Google Maps)Does Lost Rivers Medical Center have an emergency room?
Yes. Lost Rivers Medical Center has an emergency department, according to Medicare data.
Quality and performance
Centers for Medicare & Medicaid Services · data as of July 2026
Patients treated and sent home from the emergency department at Lost Rivers Medical Center spend a median of 1 hour 35 minutes there. That is 36 minutes shorter than the average across Idaho hospitals (2 hours 11 minutes).
Source: CMS Hospital General Information and Timely & Effective Care. Wait times are a median over a past 12-month reporting period, not live data. Not affiliated with CMS or with Lost Rivers Medical Center. For a medical emergency, call 911.
Compare ER waits across Idaho · Other Critical Access hospitals in Idaho · How we source this data · Something wrong on this page? Tell us
Health insurance at Lost Rivers Medical Center
Original Medicare: Medicare-certified, so it can bill Original Medicare (Medicare number 131324). Medicare Advantage plans have their own networks, which this section does not cover.
Idaho runs its own exchange, Your Health Idaho. Check its provider directory for Lost Rivers Medical Center.
Source: the insurers' 2027 machine-readable provider files listed in the CMS Marketplace public use files, loaded November 4, 2026, matched to hospitals by NPI from CMS Hospital Enrollments. How we match networks to hospitals Networks change; confirm with your insurer before you go.
Timely and effective care
Centers for Medicare & Medicaid Services · all patients unless noted · Oct 2024 – Sep 2025
Lost Rivers Medical Center's emergency department is classed by CMS as low volume.
| Measure | This hospital | U.S. |
|---|---|---|
| Typical time in the ER before going homeMedian minutes from arrival to leaving, for ER patients sent home (not counting mental health patients or transfers). Lower is better. 245 patients. | 95 min | 162 min |
| Patients who left the ER before being seenLower is better. 1,496 patients. | 1% | 2% |
| Health care workers vaccinated against fluHigher is better. 144 patients. | 63% | 78% |
CMS publishes these process-of-care measures without a better/worse verdict, so the U.S. figure is shown for context; small differences, or results based on few patients, may not mean much. About the data.
Doctors at Lost Rivers Medical Center
43 Medicare-enrolled doctors and other clinicians list this hospital as an affiliation, across 10 specialties.
Size and finances
Medicare cost report · fiscal year ending Sep 2024
As reported by the hospital to CMS; not audited. Operating margin is income from patient care divided by net patient revenue and leaves out investment income and donations. Compare Idaho hospital finances.
Who owns Lost Rivers Medical Center
Medicare enrollment and ownership records (PECOS)
Medicare lists the hospital's legal name as Lost Rivers Medical Center, a non-profit organization, incorporated 1957.
92 doctors and other clinicians list Lost Rivers Medical Center as a hospital affiliation in Medicare's clinician directory.
Organizations with 5% or more ownership (directly or through other companies), partnership interests or operational control, as the hospital reported them to Medicare. Records can lag behind recent sales. Individuals are not listed. Who owns America's hospitals.
The area around Lost Rivers Medical Center
HRSA shortage designations and BLS pay data
Primary care: Parts of Butte are federally designated health professional shortage areas (1 designation). Highest shortage score 11.
Mental health: Parts of Butte are federally designated health professional shortage areas (1 designation). Highest shortage score 16.
Dental: Parts of Butte are federally designated health professional shortage areas (1 designation). Highest shortage score 12.
Nurse pay: registered nurses in Idaho earn a median $92,460 a year. Healthcare salaries in Idaho.
Shortage areas are designated by the Health Resources and Services Administration where there are too few primary care, mental health or dental providers for the population; scores run from 0 to 25 for primary and mental health care and 0 to 26 for dental care, higher meaning greater need. Idaho shortage areas
Closest other hospitals
Healthcare pay in Idaho
Registered nurses across Idaho (all employers) earned a median of $92,460 a year (BLS, May 2025).Registered Nurse (RN) salary in IdahoNurse Practitioner salary in IdahoRespiratory Therapist salary in IdahoHealthcare salaries in Idaho
Cite this data
Writing about Lost Rivers Medical Center? You're welcome to quote these figures. They are free to use under CC BY 4.0: please credit HospitalsInEachState.com and link to this page.