Health system · AHRQ HSI00001430
Catholic Health Systems
5 member hospitals in the Medicare files across NY · corporate parent CATHOLIC HEALTH SYSTEMS. Ranked 527 of 587 systems by what it bills per dollar paidⓘ.
3K Medicare discharges
$118.0M billed
$54.1M paid
Billed per dollar paid, all members, all admissions
2.18×
National figure: 5.03×. Source: AHRQ Compendium of U.S. Health Systems for membership; CMS Medicare inpatient file for charges and payments.
01 · Member hospitals
Every hospital in the system, by what it bills
Hospital
City · ZIP
County · debt · uninsured
Discharges
Admission types
Beds
Billed ÷ paid
Mount St Mary's Hospital And Health Center
Lewiston, NY 14092
Niagara County · — · 4.5%
364
16
175
2.3×
Mercy Hospital Of Buffalo
Buffalo, NY 14220
Erie County · — · 4.3%
2,029
74
346
2.2×
Kenmore Mercy Hospital
Kenmore, NY 14217
Erie County · — · 4.3%
570
29
159
2.2×
Sisters Of Charity Hospital
Buffalo, NY 14214
Erie County · — · 4.3%
441
21
343
2.0×
Bertrand Chaffee Hospital
Springville, NY 14141
Erie County · — · 4.3%
32
2
23
1.1×
A system's figure is not the average of its hospitals' figures: it is one fraction over all their discharges, so the large hospitals dominate it. Hospitals the AHRQ file lists as members but that do not appear in the Medicare inpatient file are not here. Filter the explorer to this system →
Sources
the files read, as fetched — not our copy of them- chsp-hospital-linkage-2023.csv · 1.5M bytes · fetched 2026-08-21 · sha256 a86146f10c8d… · publisher's page · public; cite AHRQ Compendium of U.S. Health Systems
- MUP_INP_RY26_P03_V10_DY24_PrvSvc.CSV · 38.0M bytes · fetched 2026-08-21 · sha256 2ab6da15be4c… · publisher's page · public domain (US federal)
Every figure on this page is computed from these files by pipeline/prices/; the same rows are in the API.