Critical access hospital · Arco, Idaho · 14 beds · CMS certification number 131324
Lost Rivers Medical Center
Its Medicare cost reports, read cell by cell. Latest filing: fiscal year ended September 30, 2025, as submitted, stamped by CMS January 8, 2026. 22 years on file, every one shown below. Also on the 340B covered-entity register.
Fiscal 2025 at a glance
What stands out
- Net patient revenue rose from $3.8M in its first year on file (2004) to $14.5M in 2025.
- Its result from patient care: −$898K (2023), −$1.6M (2024), −$1.2M (2025).
- 3 of the 5 critical access hospital peers below with a margin on file also report a loss on patient care for fiscal year 2025.
- Medicaid paid for 5.3% of its inpatient days and Medicare for 75.8%.
- LOST RIVERS MEDICAL CENTER holds 100% of it, on its Medicare enrollment.
Every statement is drawn from figures on this page; nothing is estimated.
22 years of filings
Net patient revenue against operating expenses, each year as filed.
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Beside its peers
Critical access hospitals in Idaho with under 25 beds, each on fiscal year 2025.
| Hospital | Beds | Net patient revenue | Operating expenses | Margin |
|---|---|---|---|---|
| Lost Rivers Medical Center | 14 | $14,525,170 | $15,719,095 | −8.2% |
| North Canyon Medical Center, Gooding | 16 | $75,816,886 | $73,032,905 | 3.7% |
| St. Lukes McCall Medical Center, Mccall | 15 | $66,366,964 | $62,972,048 | 5.1% |
| Syringa General Hospital, Grangeville | 15 | $22,557,357 | $26,524,874 | −17.6% |
| Teton Valley Hospital, Driggs | 13 | $37,205,860 | $38,044,204 | −2.3% |
| Valor Health, Emmett | 13 | $24,709,593 | $25,971,946 | −5.1% |
Patients and payers
- Discharges
- 11S-3 line 14, col 15
- Inpatient days
- 95S-3 line 14, col 8
- Beds in use, on an average day
- 0.3days ÷ days in year
- Occupancy
- 1.9%days ÷ bed days
- Medicare share of days
- 75.8%S-3 cols 6 ÷ 8
- Medicaid share of days
- 5.3%S-3 cols 7 ÷ 8
Who owns it
- LOST RIVERS MEDICAL CENTER100%
Type of control on its cost report: governmental, hospital district.
Owners of 5% or more, from CMS’s hospital ownership file (Medicare enrollment, October 1, 2026).
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Figures: CMS Healthcare Cost Report Information System, file HOSP10FY2025.ZIP, form CMS-2552-10, filed under CMS certification number 131324. Patients and payers: worksheet S-3 Part I of the same filing. Ownership: CMS Hospital All Owners and Hospital Enrollments.
How this page was built: the CMS Medicare cost report, file HOSP10FY2025.ZIP, read January 8, 2026.