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50 Largest US Medical Groups

Oakland, Calif.-based Permanente Medical Groups ranked No. 1 in the nation’s 50 largest medical group parents, with over three times the number of unique physicians as the second ranked Veterans Health Administration, according to an annual report published by IQVIA.

The report uses data from OneKey, a database from IQVIA that includes nine million U.S. healthcare professionals and 680,000 organizations.

The report ranked these parent companies by total physician affiliations, unique physicians and medical group count. Total physician affiliations are defined as the number of physician bridges between providers and sites, unique physicians are defined as the number of unique physicians affiliated to an integrated delivery network and medical group count is defined as the number of physicians at the IDN’s outpatient center(s), which may be a single specialty or multispecialty business. Imaging centers and surgery centers are not included in this report.

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Here are the 50 largest U.S. medical group parents, ranked according to total physician affiliations, unique physicians and medical group count.

No. 1 — Permanente Medical Groups (Oakland, Calif.)

  • Total physician affiliations: 19,179
  • Unique physicians: 14,757
  • Medical group count: 578

No. 2 — Veterans Health Administration (Washington, D.C.)

  • Total physician affiliations: 4,909
  • Unique physicians: 4,798
  • Medical group count: 690

No. 3 — Mayo Clinic (Rochester, Minn.)

  • Total physician affiliations: 5,137
  • Unique physicians: 4,733
  • Medical group count: 128

No. 4 — Ascension Health (St. Louis)

  • Total physician affiliations: 5,035
  • Unique physicians: 4,218
  • Medical group count: 1,136

No. 5 — UC Health (Oakland, Calif.)

  • Total physician affiliations: 4,797
  • Unique physicians: 4,124
  • Medical group count: 397

No. 6 — Fresenius Medical Care Holdings (Waltham, Mass.)

  • Total physician affiliations: 5,875
  • Unique physicians: 3,229
  • Medical group count: 2,479

No. 7 — Providence Saint Joseph Health (Renton, Wash.)

  • Total physician affiliations: 3,507
  • Unique physicians: 3,054
  • Medical group count: 573

No. 8 — DaVita (Denver)

  • Total physician affiliations: 3,676
  • Unique physicians: 2,737
  • Medical group count: 2,813

No. 9 — Trinity Health (Livonia, Mich.)

  • Total physician affiliations: 2,864
  • Unique physicians: 2,551
  • Medical group count: 607

No. 10 — Catholic Health Initiatives (Englewood, Colo.)

  • Total physician affiliations: 2,961
  • Unique physicians: 2,473
  • Medical group count: 766

No. 11 — Sutter Health (Sacramento, Calif.)

  • Total physician affiliations: 3,131
  • Unique physicians: 2,468
  • Medical group count: 436

No. 12 — HCA Healthcare (Nashville, Tenn.)

  • Total physician affiliations: 2,838
  • Unique physicians: 2,457
  • Medical group count: 641

No. 13 — Partners HealthCare System (Boston)

  • Total physician affiliations: 2,384
  • Unique physicians: 2,178
  • Medical group count: 218

No. 14 — UPMC (Pittsburgh)*

  • Total physician affiliations: 2,955
  • Unique physicians: 2,163
  • Medical group count: 642

No. 15 — Carolinas HealthCare System — now Atrium Health (Charlotte, N.C.)

  • Total physician affiliations: 2,235
  • Unique physicians: 1,885
  • Medical group count: 468

No. 16 — Cleveland Clinic

  • Total physician affiliations: 1,873
  • Unique physicians: 1,656
  • Medical group count: 195

No. 17 — Aurora Health Care (Milwaukee)

  • Total physician affiliations: 2,245
  • Unique physicians: 1,623
  • Medical group count: 258

No. 18 — Mercy Health (Chesterfield, Mo.)

  • Total physician affiliations: 1,840
  • Unique physicians: 1,570
  • Medical group count: 515

No. 19 —New York Presbyterian Healthcare System (New York City)

  • Total physician affiliations: 1,617
  • Unique physicians: 1,506
  • Medical group count: 168

No. 20 — NYU Langone Health (New York City)

  • Total physician affiliations: 1,743
  • Unique physicians: 1,500
  • Medical group count: 221

No. 21 — Indiana University Health (Indianapolis)

  • Total physician affiliations: 1,671
  • Unique physicians: 1,462
  • Medical group count: 244

No. 22 — SSM Health (Saint Louis)

  • Total physician affiliations: 1,824
  • Unique physicians: 1,455
  • Medical group count: 274

No. 23 — Penn Medicine (Philadelphia)

  • Total physician affiliations: 1,746
  • Unique physicians: 1,443
  • Medical group count: 210

No. 24 — Advocate Health Care (Downers Grove, Ill.)

  • Total physician affiliations: 1,777
  • Unique physicians: 1,398
  • Medical group count: 284

No. 25 — Baylor Scott & White Health (Dallas)

  • Total physician affiliations: 1,596
  • Unique physicians: 1,362
  • Medical group count: 290

No. 26 — Dignity Health (San Francisco)

  • Total physician affiliations: 1,519
  • Unique physicians: 1,342
  • Medical group count: 396

No. 27 — Northwell Health (New Hyde Park, N.Y.)*

  • Total physician affiliations: 1,528
  • Unique physicians: 1,337
  • Medical group count: 308

No. 28 — Mount Sinai Health System (New York City)

  • Total physician affiliations: 1,522
  • Unique physicians: 1,326
  • Medical group count: 215

No. 29 — Community Health Systems (Franklin, Tenn.)

  • Total physician affiliations: 1,497
  • Unique physicians: 1,312
  • Medical group count: 586

No. 30 — Yale New Haven (Conn.) Health System

  • Total physician affiliations: 1,516
  • Unique physicians: 1,311
  • Medical group count: 202

No. 31 — Emory Healthcare (Atlanta)

  • Total physician affiliations: 1,523
  • Unique physicians: 1,282
  • Medical group count: 119

No. 32 — Stanford (Calif.) Health Care

  • Total physician affiliations: 1,403
  • Unique physicians: 1,254
  • Medical group count: 110

No. 33 — HealthPartners (Minneapolis)

  • Total physician affiliations: 1,508
  • Unique physicians: 1,254
  • Medical group count: 117

No. 34 — Johns Hopkins Health System (Baltimore)

  • Total physician affiliations: 1,515
  • Unique physicians: 1,251
  • Medical group count: 166

No. 35 — Vanderbilt University Medical Center (Nashville, Tenn.)

  • Total physician affiliations: 1,655
  • Unique physicians: 1,248
  • Medical group count: 109

No. 36 — Duke University Health System (Durham, N.C.)

  • Total physician affiliations: 1,549
  • Unique physicians: 1,229
  • Medical group count: 231

No. 37 — Intermountain Healthcare (Salt Lake City)

  • Total physician affiliations: 1,452
  • Unique physicians: 1,197
  • Medical group count: 241

No. 38 — Jefferson Health (Radnor, Pa.)

  • Total physician affiliations: 1,372
  • Unique physicians: 1,153
  • Medical group count: 173

No. 39 — UW Medicine (Seattle)

  • Total physician affiliations: 1,459
  • Unique physicians: 1,093
  • Medical group count: 178

No. 40 — Northwestern Medicine (Chicago)

  • Total physician affiliations: 1,370
  • Unique physicians: 1,083
  • Medical group count: 135

No. 41 — Fairview Health Services (Minneapolis)

  • Total physician affiliations: 1,291
  • Unique physicians: 1,070
  • Medical group count: 139

No. 42 — Novant Health (Winston-Salem, N.C.)

  • Total physician affiliations: 1,324
  • Unique physicians: 1,063
  • Medical group count: 305

No. 43 — Tenet Healthcare (Dallas)

  • Total physician affiliations: 1,161
  • Unique physicians: 1,052
  • Medical group count: 347

No. 44 — Banner Health (Phoenix)

  • Total physician affiliations: 1,303
  • Unique physicians: 1,043
  • Medical group count: 239

No. 45 — University of Michigan Health System (Ann Arbor)

  • Total physician affiliations: 1,285
  • Unique physicians: 1,039
  • Medical group count: 84

No. 46 — Adventist Health System (Altamonte Springs, Fla.)

  • Total physician affiliations: 1,180
  • Unique physicians: 1,033
  • Medical group count: 312

No. 47 — UNC Health Care System (Chapel Hill, N.C.)

  • Total physician affiliations: 1,162
  • Unique physicians: 1,013
  • Medical group count: 211

No. 48 — PeaceHealth (Vancouver, Wash.)

  • Total physician affiliations: 1,137
  • Unique physicians: 1,006
  • Medical group count: 165

No. 49 — Allina Health System (Minneapolis)

  • Total physician affiliations: 1,259
  • Unique physicians: 999
  • Medical group count: 120

No. 50 — Sanford Health (Sioux Falls, S.D.)

  • Total physician affiliations: 1,212
  • Unique physicians: 964
  • Medical group count: 198

© Copyright ASC COMMUNICATIONS 2018.
Written by Megan Knowles | March 12, 2018

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