Short-term acute care hospital · Oakland, California · 251 beds · CMS certification number 050043
Alta Bates Summit Medical Center-Summit Campus
Its Medicare cost reports, read cell by cell. Latest filing: fiscal year ended December 31, 2025, as submitted, stamped by CMS June 26, 2026. 29 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 $189.4M in its first year on file (1997) to $622.6M in 2025.
- Its result from patient care: $28.2M (2023), $19.0M (2024), $45.7M (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 2.6% of its inpatient days and Medicare for 41.7%.
- SUTTER HEALTH holds 100% of it, on its Medicare enrollment.
Every statement is drawn from figures on this page; nothing is estimated.
29 years of filings
Net patient revenue against operating expenses, each year as filed.
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Beside its peers
Short-term acute care hospitals in California with 200 to 399 beds, each on fiscal year 2025.
| Hospital | Beds | Net patient revenue | Operating expenses | Margin |
|---|---|---|---|---|
| Alta Bates Summit Medical Center-Summit Campus | 251 | $622,649,330 | $576,938,875 | 7.3% |
| John Muir Medical Center - Concord Campus, Concord | 247 | $830,399,397 | $773,075,732 | 6.9% |
| Kaiser Foundation Hospital Walnut Creek, Walnut Creek | 249 | $794,591,146 | $826,317,659 | −4.0% |
| Memorialcare Saddleback Medical Center, Laguna Hills | 248 | $405,702,701 | $433,243,235 | −6.8% |
| Orange County Global Medical Center, Santa Ana | 254 | $231,334,685 | $226,368,871 | 2.1% |
| Tri-City Medical Center, Oceanside | 252 | $290,656,427 | $339,034,250 | −16.6% |
Patients and payers
- Discharges
- 12,304S-3 line 14, col 15
- Inpatient days
- 58,438S-3 line 14, col 8
- Beds in use, on an average day
- 160.5days ÷ days in year
- Occupancy
- 63.8%days ÷ bed days
- Medicare share of days
- 41.7%S-3 cols 6 ÷ 8
- Medicaid share of days
- 2.6%S-3 cols 7 ÷ 8
Who owns it
- SUTTER HEALTH100%
Related organizations on its own cost report: SUMMIT (100%), health care.
Other hospitals with the same owner: Sutter Mills Peninsula Medical Center, Burlingame Campus (CA), California Pacific Medical Center (CA), Sutter Amador Hospital (CA), California Pacific Medical Center-Van Ness Campus (CA), California Pacific Medical Center-Mission Bernal Campus (CA), Sutter Solano Medical Center (CA), Sutter Medical Center Sacramento (CA), Novato Community Hospital (CA), Sutter Santa Rosa Regional Hospital (CA), Alta Bates Summit Medical Center-Alta Bates Campus (CA), Sutter Roseville Medical Center (CA), Sutter Tracy Community Hospital (CA).
Type of control on its cost report: voluntary nonprofit, other.
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 050043. 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 June 26, 2026.