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Erin E. Trish

Title(s)Assistant Professor
Phone+1 213 821 6178
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    Dr. Erin Trish is a postdoctoral fellow at the Schaeffer Center for Health Policy and Economics at the University of Southern California and the Fielding School of Public Health at the University of California Los Angeles. She graduated from the Johns Hopkins Bloomberg School of Public health in 2013 with a doctorate in Health Policy and Economics. She also holds a B.S. in Biomedical Engineering from Johns Hopkins University and worked as a research assistant in a stem cell research lab at Harvard University prior to starting graduate school.

    Her research focuses on private health insurance markets in the US, including how the Affordable Care Act may affect how these markets function. Her dissertation work focused on the offsetting effects of the level of competition among insurers on health insurance premiums and on how insurance market regulations affect employers’ decisions about the health benefits they offer. Additionally, she has worked on several other research projects related to the ACA including simulations of the population expected to obtain coverage through the exchanges as well as the risk adjustment programs included in the law.

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Hanson C, Herring B, Trish E. Do health insurance and hospital market concentration influence hospital patients' experience of care? Health Serv Res. 2019 Aug; 54(4):805-815. PMID: 31095743.
      View in: PubMed
    2. Romley J, Trish E, Goldman D, Beeuwkes Buntin M, He Y, Ginsburg P. Geographic variation in the delivery of high-value inpatient care. PLoS One. 2019; 14(3):e0213647. PMID: 30908492.
      View in: PubMed
    3. Hall MA, Adler L, Ginsburg PB, Trish E. Reducing Unfair Out-of-Network Billing - Integrated Approaches to Protecting Patients. N Engl J Med. 2019 Feb 14; 380(7):610-612. PMID: 30650002.
      View in: PubMed
    4. Howard DH, Herring B, Graves J, Trish E. Provider-owned insurers in the individual market. Am J Manag Care. 2018 Dec 01; 24(12):e393-e398. PMID: 30586488.
      View in: PubMed
    5. Trish E, Xu J, Joyce G. Growing Number Of Unsubsidized Part D Beneficiaries With Catastrophic Spending Suggests Need For An Out-Of-Pocket Cap. Health Aff (Millwood). 2018 07; 37(7):1048-1056. PMID: 29985706.
      View in: PubMed
    6. Zhang X, Trish E, Sood N. Financial burden of healthcare utilization in consumer-directed health plans. Am J Manag Care. 2018 Apr 01; 24(4):e115-e121. PMID: 29668214.
      View in: PubMed
    7. Howard DH, Trish E. Provider-owned insurers. Am J Manag Care. 2017 09; 23(9):566-567. PMID: 29087154.
      View in: PubMed
    8. Trish E, Ginsburg P, Gascue L, Joyce G. Physician Reimbursement in Medicare Advantage Compared With Traditional Medicare and Commercial Health Insurance. JAMA Intern Med. 2017 09 01; 177(9):1287-1295. PMID: 28692718.
      View in: PubMed
    9. Trish E, Herring B. Does Limiting Allowable Rating Variation in the Small Group Health Insurance Market Affect Employer Self-Insurance? J Risk Insur. 2018 Sep; 85(3):607-633. PMID: 30100626.
      View in: PubMed
    10. Trish E, Xu J, Joyce G. Medicare Beneficiaries Face Growing Out-Of-Pocket Burden For Specialty Drugs While In Catastrophic Coverage Phase. Health Aff (Millwood). 2016 09 01; 35(9):1564-71. PMID: 27605634.
      View in: PubMed
    11. Herring B, Trish E. Explaining the Growth in US Health Care Spending Using State-Level Variation in Income, Insurance, and Provider Market Dynamics. Inquiry. 2015; 52. PMID: 26655685.
      View in: PubMed
    12. Herring B, Trish E. The Distributional Effects of the Affordable Care Act's Cadillac Tax by Worker Income. AMA J Ethics. 2015 Jul 01; 17(7):672-9. PMID: 26158816.
      View in: PubMed
    13. Trish EE, Herring BJ. How do health insurer market concentration and bargaining power with hospitals affect health insurance premiums? J Health Econ. 2015 Jul; 42:104-14. PMID: 25910690.
      View in: PubMed
    14. Trish E, Joyce G, Goldman DP. Specialty drug spending trends among Medicare and Medicare Advantage enrollees, 2007-11. Health Aff (Millwood). 2014 Nov; 33(11):2018-24. PMID: 25367998.
      View in: PubMed
    15. Weiner JP, Trish E, Abrams C, Lemke K. Adjusting for risk selection in state health insurance exchanges will be critically important and feasible, but not easy. Health Aff (Millwood). 2012 Feb; 31(2):306-15. PMID: 22323160.
      View in: PubMed
    16. Trish E, Dimos J, Eggan K. Human ES cells: starting culture from frozen cells. J Vis Exp. 2006 Nov 09; (1):86. PMID: 18704174.
      View in: PubMed
    17. Trish E, Dimos J, Eggan K. Passaging HuES human embryonic stem cell-lines with trypsin. J Vis Exp. 2006 Oct 12; (1):49. PMID: 18704181.
      View in: PubMed
    18. Trish E, Dimos J, Eggan K. Freezing human ES cells. J Vis Exp. 2006 Oct 12; (1):50. PMID: 18704182.
      View in: PubMed