Erin E. Trish

Title(s)Assistant Professor
AddressVPD 412G
University Park Campus
Los Angeles CA 90089-7273
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. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Out-of-Network Air Ambulance Bills: Prevalence, Magnitude, and Policy Solutions. Milbank Q. 2020 Jun 11. Fuse Brown EC, Trish E, Ly B, Hall M, Adler L. PMID: 32525223.
      View in: PubMed   Mentions:    Fields:    
    2. Prevalence And Characteristics Of Surprise Out-Of-Network Bills From Professionals In Ambulatory Surgery Centers. Health Aff (Millwood). 2020 Apr 15; 101377hlthaff201901138. Duffy EL, Adler L, Ginsburg PB, Trish E. PMID: 32293916.
      View in: PubMed   Mentions:    Fields:    
    3. Who Pays in Medicare Part D? Giving Plans More Skin in the Game. N Engl J Med. 2019 Dec 19; 381(25):2384-2387. Trish EE, Ginsburg PB, Joyce GF, Goldman DP. PMID: 31747509.
      View in: PubMed   Mentions:    Fields:    
    4. Medicare Part D: Time for Re-Modernization? Health Serv Res. 2019 12; 54(6):1174-1183. Trish EE. PMID: 31667832.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. Incorporating Prescription Drug Utilization Information Into the Marketplace Risk Adjustment Model Improves Payment Accuracy and Reduces Adverse Selection Incentives. Med Care Res Rev. 2019 Aug 22; 1077558719870060. Xu J, Trish E, Joyce G. PMID: 31434536.
      View in: PubMed   Mentions:    Fields:    
    6. Do health insurance and hospital market concentration influence hospital patients' experience of care? Health Serv Res. 2019 08; 54(4):805-815. Hanson C, Herring B, Trish E. PMID: 31095743.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    7. Geographic variation in the delivery of high-value inpatient care. PLoS One. 2019; 14(3):e0213647. Romley J, Trish E, Goldman D, Beeuwkes Buntin M, He Y, Ginsburg P. PMID: 30908492.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    8. Reducing Unfair Out-of-Network Billing - Integrated Approaches to Protecting Patients. N Engl J Med. 2019 Feb 14; 380(7):610-612. Hall MA, Adler L, Ginsburg PB, Trish E. PMID: 30650002.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    9. Quantifying Overinsurance Tied to the Tax Exclusion for Employment-Based Health Insurance and Its Variation by Health Status. Inquiry. 2019 Jan-Dec; 56:46958019893857. Herring B, Trish E. PMID: 31823664.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    10. Provider-owned insurers in the individual market. Am J Manag Care. 2018 12 01; 24(12):e393-e398. Howard DH, Herring B, Graves J, Trish E. PMID: 30586488.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    11. 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. Trish E, Xu J, Joyce G. PMID: 29985706.
      View in: PubMed   Mentions: 1     Fields:    
    12. Financial burden of healthcare utilization in consumer-directed health plans. Am J Manag Care. 2018 04 01; 24(4):e115-e121. Zhang X, Trish E, Sood N. PMID: 29668214.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    13. Provider-owned insurers. Am J Manag Care. 2017 09; 23(9):566-567. Howard DH, Trish E. PMID: 29087154.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    14. Physician Reimbursement in Medicare Advantage Compared With Traditional Medicare and Commercial Health Insurance. JAMA Intern Med. 2017 09 01; 177(9):1287-1295. Trish E, Ginsburg P, Gascue L, Joyce G. PMID: 28692718.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    15. 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. Trish E, Herring B. PMID: 30100626.
      View in: PubMed   Mentions:
    16. 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. Trish E, Xu J, Joyce G. PMID: 27605634.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    17. Explaining the Growth in US Health Care Spending Using State-Level Variation in Income, Insurance, and Provider Market Dynamics. Inquiry. 2015; 52. Herring B, Trish E. PMID: 26655685.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    18. The Distributional Effects of the Affordable Care Act's Cadillac Tax by Worker Income. AMA J Ethics. 2015 Jul 01; 17(7):672-9. Herring B, Trish E. PMID: 26158816.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    19. How do health insurer market concentration and bargaining power with hospitals affect health insurance premiums? J Health Econ. 2015 Jul; 42:104-14. Trish EE, Herring BJ. PMID: 25910690.
      View in: PubMed   Mentions: 2     Fields:    
    20. Specialty drug spending trends among Medicare and Medicare Advantage enrollees, 2007-11. Health Aff (Millwood). 2014 Nov; 33(11):2018-24. Trish E, Joyce G, Goldman DP. PMID: 25367998.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    21. 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. Weiner JP, Trish E, Abrams C, Lemke K. PMID: 22323160.
      View in: PubMed   Mentions: 8     Fields:    
    22. Human ES cells: starting culture from frozen cells. J Vis Exp. 2006 Nov 09; (1):86. Trish E, Dimos J, Eggan K. PMID: 18704174.
      View in: PubMed   Mentions:    Fields:    Translation:HumansAnimalsCells
    23. Freezing human ES cells. J Vis Exp. 2006 Oct 12; (1):50. Trish E, Dimos J, Eggan K. PMID: 18704182.
      View in: PubMed   Mentions:    Fields:    Translation:HumansCells
    24. Passaging HuES human embryonic stem cell-lines with trypsin. J Vis Exp. 2006 Oct 12; (1):49. Trish E, Dimos J, Eggan K. PMID: 18704181.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansAnimalsCells
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