Healthcare Insights
Top 25 IDNs by number of hospitals and discharges
The following tables list the top 25 IDNs by the number of in-network hospitals and the number of discharges reported during the last available calendar year.
Though many IDNs, or integrated delivery networks appear on both lists, the number of hospitals does not directly correlate to the number of discharges. A greater number of discharges also did not directly correlate to a higher net patient revenue (NPR).
First, we looked at the top 25 IDNs by number of hospitals.
| Rank | IDN name | City | State | # of hospitals | Explore dataset |
|---|---|---|---|---|---|
| 1 | HCA Healthcare (FKA Hospital Corporation of America) | Nashville | TN | 221 | Explore |
| 2 | Universal Health Services | King of Prussia | PA | 187 | Explore |
| 3 | Encompass Health Corporation (FKA HealthSouth) | Birmingham | AL | 171 | Explore |
| 4 | Department of Veterans Affairs (AKA Veterans Health Administration) | Washington | DC | 161 | Explore |
| 5 | CommonSpirit Health | Chicago | IL | 157 | Explore |
| 6 | Select Medical Corporation | Mechanicsburg | PA | 119 | Explore |
| 7 | Ascension Health | Saint Louis | MO | 100 | Explore |
| 8 | LifePoint Health (FKA LifePoint Hospitals) | Brentwood | TN | 95 | Explore |
| 9 | ScionHealth | Louisville | KY | 92 | Explore |
| 10 | Trinity Health (FKA CHE Trinity Health) | Livonia | MI | 90 | Explore |
| 11 | Tenet Healthcare | Dallas | TX | 80 | Explore |
| 12 | Community Health Systems (AKA CHS) | Franklin | TN | 72 | Explore |
| 13 | Advocate Health | Charlotte | NC | 70 | Explore |
| 14 | PAM Health (FKA Post Acute Medical) | Enola | PA | 64 | Explore |
| 15 | Kaiser Permanente | Oakland | CA | 63 | Explore |
| 16 | Providence St Joseph Health (AKA Providence) | Renton | WA | 58 | Explore |
| 17 | Vibra Healthcare | Mechanicsburg | PA | 57 | Explore |
| 18 | AdventHealth (FKA Adventist Health System) | Altamonte Springs | FL | 56 | Explore |
| 19 | Prime Healthcare Services | Ontario | CA | 52 | Explore |
| 20 | Baylor Scott & White Health | Dallas | TX | 52 | Explore |
| 21 | Sanford Health | Sioux Falls | SD | 51 | Explore |
| 22 | Dignity Health | San Francisco | CA | 48 | Explore |
| 23 | Mercy (MO) | Saint Louis | MO | 46 | Explore |
| 24 | Acadia Healthcare | Brockton | MA | 46 | Explore |
| 25 | Bon Secours Mercy Health | Cincinnati | OH | 43 | Explore |
Fig. 1 Data is from the Definitive Healthcare HospitalView product. Data accessed April 2025.
Which IDN had the greatest number of hospitals?
HCA Healthcare has the greatest number of hospitals within its network at 221. In second place is Universal Health Services with 187 hospitals. Third is Encompass Health Services with 171 hospitals.
It makes sense that HCA Healthcare tops this list because it is one of the largest health systems in the U.S. Generally, the larger a health system, the more hospitals they have in their network.
The top 25 IDNs have a total of 2,251 hospitals and an average of 90 hospitals. The top 5 IDNs accounted for 39.85% of the total hospitals among the top 25 IDNs.
We also explored the top 25 IDNs by number of discharges. See below.
| Rank | IDN name | City | State | # of discharges | Explore dataset |
|---|---|---|---|---|---|
| 1 | HCA Healthcare (FKA Hospital Corporation of America) | Nashville | TN | 2,018,543 | Explore |
| 2 | CommonSpirit Health | Chicago | IL | 855,102 | Explore |
| 3 | Universal Health Services | King of Prussia | PA | 728,609 | Explore |
| 4 | Kaiser Permanente | Oakland | CA | 602,144 | Explore |
| 5 | Advocate Health | Charlotte | NC | 530,279 | Explore |
| 6 | Trinity Health (FKA CHE Trinity Health) | Livonia | MI | 518,519 | Explore |
| 7 | Ascension Health | Saint Louis | MO | 475,953 | Explore |
| 8 | AdventHealth (FKA Adventist Health System) | Altamonte Springs | FL | 461,931 | Explore |
| 9 | Providence St Joseph Health (AKA Providence) | Renton | WA | 438,939 | Explore |
| 10 | Tenet Healthcare | Dallas | TX | 436,594 | Explore |
| 11 | Dignity Health | San Francisco | CA | 402,314 | Explore |
| 12 | Community Health Systems (AKA CHS) | Franklin | TN | 353,190 | Explore |
| 13 | Bon Secours Mercy Health | Cincinnati | OH | 314,175 | Explore |
| 14 | Northwell Health (AKA North Shore Long Island Jewish Health System) | New Hyde Park | NY | 275,505 | Explore |
| 15 | LifePoint Health (FKA LifePoint Hospitals) | Brentwood | TN | 266,004 | Explore |
| 16 | Prime Healthcare Services | Ontario | CA | 263,681 | Explore |
| 17 | Banner Health | Phoenix | AZ | 258,476 | Explore |
| 18 | Cleveland Clinic Health System | Cleveland | OH | 257,985 | Explore |
| 19 | Jefferson Health | Philadelphia | PA | 253,311 | Explore |
| 20 | University of Pittsburgh Medical Center (AKA UPMC) | Pittsburgh | PA | 252,425 | Explore |
| 21 | Mercy (MO) | Saint Louis | MO | 237,151 | Explore |
| 22 | University of California Health (AKA UC Health-CA) | Oakland | CA | 233,961 | Explore |
| 23 | Baylor Scott & White Health | Dallas | TX | 229,605 | Explore |
| 24 | Corewell Health (FKA BHSH System) | Grand Rapids | MI | 222,839 | Explore |
| 25 | Kaiser Permanente Northern California | Oakland | CA | 217,690 | Explore |
Fig. 2 Data is from the Definitive Healthcare HospitalView product. The number of discharges is sourced from the CMS Medicare Cost Report. Data accessed April 2025.
Which IDN had the greatest number of discharges?
HCA Healthcare also has the greatest number of discharges at 2,018,543. CommonSpirit Health is second with 855,102 discharges, and Universal Health Services comes in third place with 728,609 discharges.
The top 25 IDNs have a total number of discharges of 11,104,924 and an average of 444,197 discharges.
Discharges are a helpful metric in healthcare as they offer a high-level look at how busy hospitals are. Compared to other metrics like length of stay or readmission rates, discharges can help provide more granular details about hospitals and IDNs’ performance.
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