85 Sierra Park Road Po Box 660, Mammoth Lakes, CA, 93546 · (760) 934-3311
Beds
15
FY 2025
Star rating
Not rated
Overall rating
Net patient revenue
$112.1M
FY 2025
Net income
$24.8M
Patient care margin 4.2%
Discharges
439
Occupancy 21.7%
Clinicians
78
Medicare clinicians who work here
From the hospital's yearly cost reports (fiscal years as the hospital reports them)
Locations are shown at the center of the ZIP code.
US dollars as reported. Patient care margin = net patient revenue minus operating expenses, before other income such as grants, donations and investments.
| Fiscal year | Net patient revenue | Operating expenses | Patient care margin | Net income | Discharges | Uncompensated care | Medicare days | Medicaid days |
|---|---|---|---|---|---|---|---|---|
| 2025 | $112.1M | $107.4M | 4.2% | $24.8M | 439 | $3.2M | 31.0% | 13.5% |
Official hospital quality measures with the national median across hospitals. For ratios, 1.00 means as many cases as expected.
| Hospital-wide death rate within 30 days | 3.7% | US median 3.9% |
| Doctors always communicated well | 87% | US median 79% |
| Nurses always communicated well | 90% | US median 80% |
| Area around the room always quiet at night | 61% | US median 59% |
| Patients who rated the hospital 9 or 10 out of 10 | 84% | US median 72% |
| Room and bathroom always clean | 72% |
Medicare clinicians who list this hospital, by specialty
Official US government data: hospital records, ownership records, yearly cost reports and quality measures, linked by the hospital's CCN and NPI. Financials are for fiscal years as reported by the hospital.
| 2024 | $106.0M | $100.4M | 5.3% | $22.7M | 466 | $2.5M | 26.9% | 12.7% |
| 2023 | $99.1M | $95.1M | 4.1% | $18.0M | 464 | $1.8M | 29.8% | 12.8% |
| 2022 | $94.1M | $92.2M | 2.0% | $17.6M | 560 | $2.1M | 32.4% | 15.9% |
| 2021 | $89.9M | $79.6M | 11.5% | $24.2M | 710 | $2.3M | 25.1% | 13.2% |
| 2020 | $81.5M | $78.7M | 3.4% | $14.8M | 682 | $2.3M | 30.4% | 14.6% |
| US median 73% |
| Patients who would definitely recommend the hospital | 87% | US median 71% |
| Median time in the emergency department before leaving (minutes) | 117 min | US median 148 min |
| Patients prescribed 2 or more opioids or opioids with benzodiazepines at discharge | 16% | US median 15% |
| Healthcare workers given the flu vaccine | 62% | US median 79% |
Mammoth Hospital is a government-owned critical access hospital in Mammoth Lakes, CA with 15 beds.
Mammoth Hospital in Mammoth Lakes, CA has 15 beds (fiscal year 2025 cost report); 17 beds are certified for Medicare. It discharged 439 inpatients that year, with 21.7% of its beds in use on average.
In fiscal year 2025 (ending 2025-06-30), Mammoth Hospital reported net patient revenue of $112.1M and operating expenses of $107.4M, a margin on patient care of 4.2%. After other income and expenses its net income was $24.8M (18.7% of revenue), so it made a profit that year.
Mammoth Hospital is not part of a multi-hospital health system in the official ownership records. It is a government-owned hospital (Government (hospital district)).
Mammoth Hospital has no overall star rating, usually because it reports too few quality measures (for example small, specialty or federal hospitals).
Yes, Mammoth Hospital provides emergency services.
78 Medicare clinicians list Mammoth Hospital as a hospital they work at, most often in Physician Assistant, Emergency Medicine, Internal Medicine.