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We also compare patient outcomes between SNFists who are physicians versus advanced practice providers (APPs).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Setting and Design<\/jats:title>\n                    <jats:p>We used multi\u2010level modeling to estimate within\u2010SNF variation in the characteristics and outcomes of patients admitted to different SNFists and linear regression to compare patient characteristics and outcomes between physician and APP SNFists. Our main outcomes were 30\u2010day hospitalizations, 30\u2010day mortality, and antipsychotic use.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Data Sources and Analytic Sample<\/jats:title>\n                    <jats:p>We analyzed claims data for a 20% sample of traditional Medicare beneficiaries admitted to a SNF for post\u2010acute care from 2016 to 2019.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Principal Findings<\/jats:title>\n                    <jats:p>The sample included 81,789 post\u2010acute patients seen by 6273 SNFists at 1479 facilities between 2016 and 2019. Within\u2010facility variation in patient characteristics across admitting SNFists was modest and substantially greater across admitting clinicians who were not SNFists, consistent with our key assumption that patients are distributed in a more balanced fashion across admitting clinicians who are SNFists. With patient\u2010level confounding limited by this focus on SNFists, there was minimal to modest variation in the rates of mortality (adjusted standard deviation: \u22120.14), hospitalization (0.40), and antipsychotic use (1.10) across admitting clinicians. Outcomes also did not differ between APP and physician admitting SNFists (mortality: 0.001 [95% CI: \u22120.001, 0.003]; hospitalization: 0.004 [95% CI: \u22120.001, 0.010], antipsychotic use: \u22120.001 [95% CI: \u22120.006, 0.003]). In contrast, outcomes varied substantially across admitting clinicians who were not SNFists.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Quasi\u2010experimental assignment of patients to clinicians in SNFs reveals that the admitting clinician appears to have little influence on key outcomes in the post\u2010acute setting, in contrast with similar research conducted in other care settings. An analysis of non\u2010SNFists might falsely conclude that the impact of clinician factors is large because of evident non\u2010random sorting of patients to non\u2010SNFist clinicians in SNFs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/1475-6773.70017","type":"journal-article","created":{"date-parts":[[2025,7,24]],"date-time":"2025-07-24T07:14:09Z","timestamp":1753341249000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Influence of Admitting Clinician on Outcomes in Post\u2010Acute Facilities"],"prefix":"10.1111","volume":"61","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3933-8570","authenticated-orcid":false,"given":"Amanda C.","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Health Care Policy Harvard Medical School  Boston Massachusetts USA"},{"name":"Harvard Graduate School of Arts and Sciences  Cambridge Massachusetts USA"},{"name":"Department of Pharmaceutical &amp; Health Economics School of Pharmacy, University of Southern California  Los Angeles California USA"},{"name":"The Leonard D. Schaeffer Center for Health Policy &amp; Economics, University of Southern California  Los Angeles California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. Michael","family":"McWilliams","sequence":"additional","affiliation":[{"name":"Department of Health Care Policy Harvard Medical School  Boston Massachusetts USA"},{"name":"Division of General Internal Medicine and Primary Care Brigham and Women's Hospital  Boston Massachusetts USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,7,24]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamainternmed.2018.5086"},{"key":"e_1_2_11_3_1","doi-asserted-by":"crossref","unstructured":"R.Ginja J.Riise B.Willage andA. L. P.Willen \u201cDoes Your Doctor Matter? 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