Matthew Niedzwiecki, PhD

Title(s)Assistant Professor, Emergency Medicine
SchoolSchool of Medicine
Address1001 Potrero Ave
San Francisco CA 94110
Phone--
ORCID ORCID Icon0000-0001-9005-9054 Additional info
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    Collapse Biography 
    Collapse Education and Training
    Robert Wood Johnson FoundationScholars in Health Policy Research Program2015Economics
    University of California, San DiegoPh.D.2013Economics
    University of California, San DiegoM.A.2008Economics
    Brandeis UniversityB.A.2007Mathematics, Economics

    Collapse Bibliographic 
    Collapse Publications
    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.
    Newest   |   Oldest   |   Most Cited   |   Most Discussed   |   Timeline   |   Field Summary   |   Plain Text
    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. Understanding the 100 highest users of health and social services in San Francisco. Acad Emerg Med. 2021 09; 28(9):1077-1080. Hanna RF, Ward TJ, Chow DS, Lagana SM, Moreira RK, Emond JC, Weintraub JL, Prince MR, Cawley C, Raven MC, Martinez MX, Niedzwiecki M, Kushel MB, Kanzaria HK. PMID: 34021517.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    2. Primary Care Practices Providing a Broader Range of Services Have Lower Medicare Expenditures and Emergency Department Utilization. J Gen Intern Med. 2021 Sep; 36(9):2796-2802. Rich EC, O'Malley AS, Burkhart C, Shang L, Ghosh A, Niedzwiecki MJ. PMID: 33782897.
      View in: PubMed   Mentions:    Fields:    
    3. Practice-site-level measures of primary care comprehensiveness and their associations with patient outcomes. Health Serv Res. 2021 Jun; 56(3):371-377. O'Malley AS, Rich EC, Shang L, Rose T, Ghosh A, Poznyak D, Peikes D, Niedzwiecki M. PMID: 33197047.
      View in: PubMed   Mentions: 2     Fields:    
    4. The association of Medicaid expansion and racial/ethnic inequities in access, treatment, and outcomes for patients with acute myocardial infarction. PLoS One. 2020; 15(11):e0241785. Valdovinos EM, Niedzwiecki MJ, Guo J, Hsia RY. PMID: 33175899.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    5. A randomized trial of permanent supportive housing for chronically homeless persons with high use of publicly funded services. Health Serv Res. 2020 10; 55 Suppl 2:797-806. Raven MC, Niedzwiecki MJ, Kushel M. PMID: 32976633.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    6. Effects of Medicaid expansion on access, treatment and outcomes for patients with acute myocardial infarction. PLoS One. 2020; 15(4):e0232097. Valdovinos EM, Niedzwiecki MJ, Guo J, Hsia RY. PMID: 32324827.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    7. Characteristics of Academic-Affiliated Health Systems. Acad Med. 2020 04; 95(4):559-566. Niedzwiecki MJ, Machta RM, Reschovsky JD, Furukawa MF, Rich EC. PMID: 31913879.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    8. Frequent Emergency Department Users: Focusing Solely On Medical Utilization Misses The Whole Person. Health Aff (Millwood). 2019 11; 38(11):1866-1875. Kanzaria HK, Niedzwiecki M, Cawley CL, Chapman C, Sabbagh SH, Riggs E, Chen AH, Martinez MX, Raven MC. PMID: 31682499.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    9. The short-term effects of the earned income tax credit on health care expenditures among US adults. Health Serv Res. 2019 12; 54(6):1295-1304. Hamad R, Niedzwiecki MJ. PMID: 31566732.
      View in: PubMed   Mentions: 4     Fields:    Translation:HumansPHPublic Health
    10. An impact analysis of the NEXUS Chest CT clinical decision rule. Am J Emerg Med. 2020 05; 38(5):906-910. Wang RC, Niedzwiecki MJ, Nishijima D, Rodriguez RM. PMID: 31303535.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    11. Past Frequent Emergency Department Use Predicts Mortality. Health Aff (Millwood). 2019 01; 38(1):155-158. Niedzwiecki MJ, Kanzaria HK, Montoy JC, Hsia RY, Raven MC. PMID: 30615529.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    12. A US National Study of the Association Between Income and Ambulance Response Time in Cardiac Arrest. JAMA Netw Open. 2018 11 02; 1(7):e185202. Hsia RY, Huang D, Mann NC, Colwell C, Mercer MP, Dai M, Niedzwiecki MJ. PMID: 30646394.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    13. Factors Associated With Emergency Department Use by Patients With and Without Mental Health Diagnoses. JAMA Netw Open. 2018 10 05; 1(6):e183528. Niedzwiecki MJ, Sharma PJ, Kanzaria HK, McConville S, Hsia RY. PMID: 30646248.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    14. 151EMF The Medicaid Expansion and Access, Treatment, and Outcomes After Acute Myocardial Infarction. Annals of Emergency Medicine. 2018 Oct 1; 72(4):s64. Valdovinos VE, Niedzwiecki NM, Guo GJ, Hsia HR. .
      View in: Publisher Site   Mentions:
    15. 153EMF The Medicaid Expansion and Racial Disparities in Transfers to Hospitals Capable of Performing Percutaneous Coronary Intervention After Acute Myocardial Infarction. Annals of Emergency Medicine. 2018 Oct 1; 72(4):s64. Valdovinos VE, Niedzwiecki NM, Guo GJ, Hsia HR. .
      View in: Publisher Site   Mentions:
    16. Comparing resource use between paediatric emergency department visits by triage level. Emerg Med J. 2018 Nov; 35(11):681-684. Samuels-Kalow ME, Niedzwiecki M, Friedman AB, Sokolove PE, Hsia RY. PMID: 30181161.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    17. Trends in the utilisation of emergency departments in California, 2005-2015: a retrospective analysis. BMJ Open. 2018 07 23; 8(7):e021392. Hsia RY, Sabbagh SH, Guo J, Nuckton TJ, Niedzwiecki MJ. PMID: 30037870.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    18. Not All Insurance Is Equal: Differential Treatment and Health Outcomes by Insurance Coverage Among Nonelderly Adult Patients With Heart Attack. J Am Heart Assoc. 2018 06 05; 7(11). Niedzwiecki MJ, Hsia RY, Shen YC. PMID: 29871858.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    19. Persistent Frequent Emergency Department Use: Core Group Exhibits Extreme Levels Of Use For More Than A Decade. Health Aff (Millwood). 2017 10 01; 36(10):1720-1728. Kanzaria HK, Niedzwiecki MJ, Montoy JC, Raven MC, Hsia RY. PMID: 28971916.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    20. Avoidable emergency department visits: a starting point. Int J Qual Health Care. 2017 Oct 01; 29(5):642-645. Hsia RY, Niedzwiecki M. PMID: 28992158.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    21. Trends in the supply of California's emergency departments and inpatient services, 2005-2014: a retrospective analysis. BMJ Open. 2017 05 11; 7(5):e014721. Chow JL, Niedzwiecki MJ, Hsia RY. PMID: 28495813.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    22. Urgent Care Needs Among Nonurgent Visits to the Emergency Department. JAMA Intern Med. 2016 06 01; 176(6):852-4. Hsia RY, Friedman AB, Niedzwiecki M. PMID: 27089549.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    23. Short-term Outcomes for Medicare Beneficiaries After Low-acuity Visits to Emergency Departments and Clinics. Med Care. 2016 May; 54(5):498-503. Niedzwiecki M, Baicker K, Wilson M, Cutler DM, Obermeyer Z. PMID: 27078822.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
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