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Sarah Axeen, PhD

Assistant Professor of Research Emergency Medicine

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Phone +1 213 821 7959
Email axeen@usc.edu
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Overview

Sarah Axeen, Ph.D, is an Assistant Professor of Research at the Keck School of Medicine, Department of Emergency Medicine. Dr. Axeen’s research focuses on understanding the drivers of and evaluating solutions to the growing problem of opioid use and abuse in the United States. She also examines the impact of state level policies on mental and behavioral health care outcomes. In addition to her research on opioids, she has explored geographic variation in health care and the relationship between changes in commercial prices and spending and utilization in Medicare. Prior to coming to Keck, she was a postdoctoral fellow with the USC Schaeffer Center for Health Policy and Economics and the UCLA Fielding School of Public Health.

Publications

  • Civil Monetary Penalties Related to Violations of the Emergency Medical Treatment and Labor Act Involving Psychiatric Emergencies: A 5-Year Update. Acad Emerg Med. 2025 Oct; 32(10):1142-1145.. View in PubMed
  • Improving Policy Evaluations Of The Opioid Crisis. Health Aff (Millwood). 2025 Sep; 44(9):1042-1049.. View in PubMed
  • Trends In The Availability Of Buprenorphine At US Retail Pharmacies, 2017-23. Health Aff (Millwood). 2025 Sep; 44(9):1157-1163.. View in PubMed
  • Implementing HIV prevention in the emergency department: Strategies and outcomes from seven California emergency departments. Am J Emerg Med. 2025 Sep; 95:115-123.. View in PubMed
  • Civil Monetary Penalties from Violations of the Emergency Medical Treatment and Labor Act for Patients Arriving or Leaving with Law Enforcement. West J Emerg Med. 2025 May 19; 26(3):712-719.. View in PubMed
  • Examining Emergency Department Utilization and Hospital Admissions Among Older Undocumented Immigrants: Insights From a Primary Care County Program. Gerontologist. 2025 Apr 09; 65(5).. View in PubMed
  • Do trial benefits predict real-world gains in metastatic castration resistant prostate cancer. JNCI Cancer Spectr. 2025 Mar 03; 9(2).. View in PubMed
  • Comparing imputation approaches for immigration status in ED visits: Implications for using electronic medical records. Health Serv Res. 2025 Feb; 60(1):e14397.. View in PubMed
  • Undocumented Patients with Access to Primary Care and Avoidable Emergency Department Visits: Evidence from a Safety-Net System. J Health Care Poor Underserved. 2025; 36(3):900-914.. View in PubMed
  • Association of Daily Doses of Buprenorphine With Urgent Health Care Utilization. JAMA Netw Open. 2024 09 03; 7(9):e2435478.. View in PubMed
  • Civil Monetary Penalties for EMTALA Violations Involving Minors, 2002-2023. Hosp Pediatr. 2024 08 01; 14(8):674-681.. View in PubMed
  • Interrupted Time Series Analysis: Patient Characteristics and Rates of Opioid-Use-Disorder-Related Emergency Department Visits in the Los Angeles County Public Hospital System during COVID-19. Healthcare (Basel). 2023 Mar 29; 11(7).. View in PubMed
  • Characteristics and Outcomes of 360 Consecutive COVID-19 Patients Discharged From the Emergency Department With Supplemental Oxygen. Ann Emerg Med. 2023 01; 81(1):14-19.. View in PubMed
  • Differences in Comorbidities Between Children and Youth With Suicide Attempts Versus Ideation Presenting to the Emergency Department. Arch Suicide Res. 2022 Jan-Mar; 26(1):280-289.. View in PubMed
  • Behavioral Health Risk Factors for Nonmedical Prescription Opioid Use in Adolescence. Pediatrics. 2021 09; 148(3).. View in PubMed
  • Association Between Race/Ethnicity and Disparities in Health Care Use Before First-Episode Psychosis Among Privately Insured Young Patients. JAMA Psychiatry. 2021 03 01; 78(3):311-319.. View in PubMed
  • Who Stayed Home Under Safer-at-Home? Impacts of COVID-19 on Volume and Patient-Mix at an Emergency Department. West J Emerg Med. 2021 Feb 08; 22(2):234-243.. View in PubMed
  • National trends in mental health-related emergency department visits by children and adults, 2009-2015. Am J Emerg Med. 2020 12; 38(12):2536-2544.. View in PubMed
  • The Association Between Hospital Characteristics and Emergency Medical Treatment and Labor Act Citation Events. Med Care. 2020 09; 58(9):793-799.. View in PubMed
  • Rubber Meeting the Road: Access to Comprehensive Stroke Care in the Face of Traffic. Acad Emerg Med. 2020 06; 27(6):457-460.. View in PubMed
  • Association between maternal serious mental illness and adverse birth outcomes. J Perinatol. 2019 05; 39(5):737-745.. View in PubMed
  • Measuring The Lifetime Costs Of Serious Mental Illness And The Mitigating Effects Of Educational Attainment. Health Aff (Millwood). 2019 04; 38(4):652-659.. View in PubMed
  • Trends in Opioid Use and Prescribing in Medicare, 2006-2012. Health Serv Res. 2018 10; 53(5):3309-3328.. View in PubMed
  • Emergency Department Contribution to the Prescription Opioid Epidemic. Ann Emerg Med. 2018 06; 71(6):659-667.e3.. View in PubMed
  • The Relationship between Commercial Health Care Prices and Medicare Spending and Utilization. Health Serv Res. 2015 Jun; 50(3):883-96.. View in PubMed
  • How much savings can we wring from Medicare? N Engl J Med. 2011 Oct 06; 365(14):e29.. View in PubMed

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