Ji Chang
Ji E. Chang, PhD
NYU School of Global Public Health - Assistant Professor, Public Health Policy and Management
PhD, Public Administration, New York University
MS, Public Policy and Management, Carnegie Mellon University
BA, Economics, University of California at Berkeley
Research Interests
Care coordination, Integration of services, Patient engagement
Ji Chang is a management and policy researcher who has experience researching healthcare organizations, healthcare delivery reform, and patient engagement in care. She uses a mix of research methods from quantitative data analysis and statistical modeling to qualitative interviews and geo-spatial mapping.

Dr. Chang’s work has three key lines of inquiry:
  1. To understand how health care provider organizations can best coordinate and integrate care delivery across settings and organizations.
  2. To examine how health care payment and delivery reforms may affect care for disadvantaged populations and the safety net.
  3. To examine factors that influence patient engagement in care.
Principal Investigator, Developing Implementation Strategies to Improve Access to Transitional Opioid Programs in Safety Net Hospitals. Active
Principal Investigator, Operationalizing Substance Use Harm Reduction Strategies in Medical Settings. Completed
Principal Investigator, Opioid Use Treatment in Primary Care: Examining Organizational Barriers to Medication Assisted Treatment Initiation and Retention in Resource Constrained Settings. Completed
Principal Investigator, Racial Disparities in Access to Hospital-based Opioid Services Before and During COVID-19. Completed


Krawczyk N, Rivera BD, Chang JE, Lindenfeld Z, Franz B (2024).
Initiatives to support the transition of patients with substance use disorders from acute care to community-based services among a national sample of nonprofit hospitals
Journal of Addiction Medicine, 18 (2), 115-121. doi: 10.1097/ADM.0000000000001250. PMCID: PMC10939963.

Lindenfeld Z, Chen K, Kapur S, Chang JE (2024).
Comparing rates of undiagnosed hypertension and diabetes in patients with and without substance use disorders
Journal of General Internal Medicine [Epub 2024 Mar 11]. doi: 10.1007/s11606-024-08718-6.

Choi J, Kim G, Choi S, Chang JE (2024).
A year after implementation of the telehealth waiver: Being offered and utilizing video-specific telehealth among dual-eligible Medicare recipients during the COVID-19 pandemic
Journal of Public Health Management and Practice, 30 (2), 255-266. doi: 10.1097/PHH.0000000000001845.

Franz B, Cronin CE, Lindenfeld Z, Pagan JA, Lai AY, Krawczyk N, Rivera BD, Chang JE (2024).
Rural-urban disparities in the availability of hospital-based screening, medications for opioid use disorder, and addiction consult services
Journal of Substance Use and Addiction Treatment, 160, 209280. doi: 10.1016/j.josat.2023.209280.

Lee JS, Bhatt A, Pollack LM, Jackson SL, Chang JE, Tong X, Luo F (2024).
Telehealth use during the early COVID-19 public health emergency and subsequent health care costs and utilization
Health Affairs Scholar, 2 (1), qxae001. doi: 10.1093/haschl/qxae001. PMCID: PMC10895996.

Dr. Chang's ResearchGate Profile