Short-term acute care hospital · Casper, Wyoming · 16 beds · CMS certification number 530034
Summit Medical Center
Its Medicare cost reports, read cell by cell. Latest filing: fiscal year ended June 30, 2025, as submitted, stamped by CMS December 3, 2025. Eleven years on file, every one shown below.
Fiscal 2025 at a glance
What stands out
- Net patient revenue rose from $20.1M in its first year on file (2019) to $35.2M in 2025.
- Its result from patient care: $27K (2023), $955K (2024), $5.2M (2025).
- 2 of the 5 short-term acute care hospital peers below with a margin on file also report a gain on patient care for fiscal year 2025.
- Medicaid paid for 2.2% of its inpatient days and Medicare for 54.1%.
- MATTHEW M DAMMEYER holds 100% of it, on its Medicare enrollment.
Every statement is drawn from figures on this page; nothing is estimated.
Eleven years of filings
Net patient revenue against operating expenses, each year as filed.
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Beside its peers
Hospitals of the same type (short-term acute care hospital), nearest in size, from Wyoming first; each on fiscal year 2025.
| Hospital | Beds | Net patient revenue | Operating expenses | Margin |
|---|---|---|---|---|
| Summit Medical Center | 16 | $35,234,624 | $30,003,198 | 14.8% |
| Campbell County Hospital District, Gillette | 66 | $186,399,747 | $220,448,988 | −18.3% |
| Evanston Regional, Evanston | 32 | $25,364,967 | $24,730,639 | 2.5% |
| Ivinson Memorial Hospital, Laramie | 76 | $150,394,554 | $129,642,028 | 13.8% |
| Sheridan Memorial Hospital, Sheridan | 88 | $141,611,086 | $160,996,743 | −13.7% |
| St. Johns Med Center/Or St. Johns Health, Jackson | 48 | $185,601,983 | $210,723,078 | −13.5% |
Patients and payers
- Discharges
- 79S-3 line 14, col 15
- Inpatient days
- 135S-3 line 14, col 8
- Beds in use, on an average day
- 0.4days ÷ days in year
- Occupancy
- 2.3%days ÷ bed days
- Medicare share of days
- 54.1%S-3 cols 6 ÷ 8
- Medicaid share of days
- 2.2%S-3 cols 7 ÷ 8
Who owns it
- MATTHEW M DAMMEYER100%
- SUMMIT MEMORIAL MANAGEMENT, LLC100%
Related organizations on its own cost report: SUMMIT MEDICAL (100%), home office.
Type of control on its cost report: proprietary, corporation.
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 HOSP10FY2024.ZIP, form CMS-2552-10, filed under CMS certification number 530034. 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 HOSP10FY2024.ZIP, read December 3, 2025.