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The following tables list the top 25 IDNs by the number of hospitals in-network, and by the number of discharges reported during the last available calendar year.

Though many IDNs appear on both lists, the number of hospitals in a network 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.

Steward Health Care System and New York Presbyterian (NYP) Health System both reported a little over 200,000 discharges in their most recent reports. Though Steward reported a higher number of discharges than NYP, NYP reported roughly double the net patient revenue. Similarly, while Kaiser Permanente ranked among the top 10 IDNs by discharges, it reported a net patient revenue of only $300 million, the lowest on the list.

Top 25 IDNs by Number of Hospitals

  IDN Name Net Patient Revenue Number of Hospitals Number of Discharges

1.

HCA Healthcare

$39,776,570,364

211

1,873,943

2.

CommonSpirit Health

$28,321,434,501

198

998,310

3.

Universal Health Services

$8,935,492,033

179

683,272

4.

Encompass Health Corporation

$3,122,737,897

135

170,299

5.

Ascension Health

$17,090,314,410

124

705,559

6.

Select Medical Corporation

$2,197,879,978

115

54,546

7.

Community Health Systems

$10,750,245,893

109

531,332

8.

LifePoint Health

$7,954,069,024

88

315,525

9.

Tenet Healthcare

$13,598,155,515

84

655,371

10.

Kindred Healthcare

$2,109,778,307

81

42,397

11.

Trinity Health

$13,894,648,951

61

568,624

12.

Providence St Joseph Health

$15,235,703,657

57

470,818

13.

Baylor Scott & White Health

$7,170,574,656

51

268,993

14.

Dignity Health

$11,813,375,044

48

386,764

15.

Prime Healthcare Services

$4,207,191,152

46

259,289

16.

Indian Health Service

$161,387,165

45

38,486

17.

Kaiser Permanente

$328,176,207

43

444,141

18.

Sanford Health

$3,499,845,466

40

77,454

19.

Atrium Health

$7,626,467,360

39

268,003

20.

Steward Health Care System

$4,448,187,497

39

200,151

21.

Acadia Healthcare

$795,698,967

39

100,812

22.

MercyOne

$2,286,203,115

39

86,666

23.

Bon Secours Mercy Health

$7,598,915,710

39

305,897

24.

AdventHealth

$7,374,244,045

38

314,600

25.

Mercy (MO)

$4,972,097,996

38

195,762

Fig 1. Data from Definitive Healthcare based on combined net patient revenue reported by IDN member hospitals from fiscal year 2016, the most recent data available. Number of discharges based on compilation of reports from IDN member hospitals.

Top 25 IDNs by Number of Discharges

  IDN Name Net Patient Revenue Number of Hospitals Number of Discharges

1.

HCA Healthcare

$39,776,570,364

211

1,873,943

2.

CommonSpirit Health

$28,321,434,501

198

998,310

3.

Ascension Health

$17,090,314,410

124

705,559

4.

Universal Health Services

$8,935,492,033

179

683,272

5.

Tenet Healthcare

$13,598,155,515

84

655,371

6.

Trinity Health

$13,894,648,951

61

568,624

7.

Community Health Systems

$10,750,245,893

109

531,332

8.

Providence St Joseph Health

$15,235,703,657

57

470,818

9.

Kaiser Permanente

$328,176,207

43

444,141

10.

Dignity Health

$11,813,375,044

48

386,764

11.

LifePoint Health

$7,954,069,024

88

315,525

12.

AdventHealth

$7,374,244,045

38

314,600

13.

Northwell Health

$8,993,294,199

23

310,432

14.

Bon Secours Mercy Health

$7,598,915,710

39

305,897

15.

University of Pittsburgh Medical Center

$8,377,440,934

37

283,733

16.

Advocate Aurora Health

$7,884,934,714

30

270,102

17.

Baylor Scott & White Health

$7,170,574,656

51

268,993

18.

Atrium Health

$7,626,467,360

39

268,003

19.

Prime Healthcare Services

$4,207,191,152

46

259,289

20.

Banner Health

$5,774,913,766

31

236,107

21.

Cleveland Clinic Health System

$8,377,012,312

19

225,473

22.

Kaiser Permanente - Northern California Region

N/A

21

214,586

23.

NewYork-Presbyterian Healthcare System

$8,639,415,105

13

213,470

24.

Steward Health Care System

$4,448,187,497

39

200,151

25.

Mercy

$4,972,097,996

38

195,762

Fig 2. Data from Definitive Healthcare based on combined net patient revenue reported by IDN member hospitals from fiscal year 2016, the most recent data available. Number of discharges based on compilation of reports from IDN member hospitals.