Working Papers

• Delivering Amidst Consolidation: Implications of Hospital Mergers on Newborn and Maternal Outcomes
  With Christopher Whaley — Draft Available on SSRN


• The impact of hospital acquisitions on the access to care and health outcomes for Medicaid beneficiaries
  Draft Available on SSRN


• Persistent Disparities: Trends in Maternal and Neonatal Health Outcomes by Health Insurance Type in the US from 2016 to 2022
  With Kathryn Thompson and Christopher Whaley

Published or Accepted Work

• Hospital Mergers and Acquisitions from 2010-2019: Creating a Valid Public Use Database
  Health Services Research, 2025
  H Oh, V Mor, A Foster, D Kim, M Rahman
  Read more


• (Conference Proceedings) The Impact of Hospital Acquisitions on Access to Care and Health Outcomes for Medicaid Beneficiaries
  Academy of Management Best Paper Proceedings, 2024
  H Oh
  Selected as a best paper (top 10%) of the Health Care Management Division for the AOM Annual Meeting 2024
  Read more


• Patterns of Migration Following Dementia Diagnosis
  JAMA Network Open, 2024
  M Rahman, BB Thapa, C Santostefano, PL Gozalo, U Muench, CM Kosar, H Oh, E White, V Mor
  Read more


• Differences in setting of initial dementia diagnosis among fee-for-service Medicare beneficiaries
  Journal of the American Geriatrics Society, 2024
  EM White, T Bayer, CM Kosar, CM Santostefano, U Muench, H Oh, EA Gadbois, PL Gozalo, M Rahman
  Read more


• Nurse Practitioner Care, Scope of Practice, and End-of-Life Outcomes for Nursing Home Residents With Dementia
  JAMA Health Forum, 2024
  CM Kosar, BB Thapa, U Muench, C Santostefano, EA Gadbois, H Oh, PL Gozalo, M Rahman, E White
  Read more


• Descriptive Trends in Medicaid Antipsychotic Prescription Claims and Expenditures, 2016–2021
  The Journal of Behavioral Health Services & Research, 2024
  NC Giron, H Oh, E Rehmet, TI Shireman
  Read more


• Advanced practice clinician care and end-of-life outcomes for community-and nursing home-dwelling Medicare beneficiaries with dementia
  Alzheimer’s & Dementia, 2023
  H Oh, EM White, U Muench, C Santostefano, B Thapa, C Kosar, EA Gadbois, ZT Osakwe, PL Gozalo, M Rahman
  Read more

Works in Progress

• The Differential Impacts of Medicaid Expansion on Cesarean Births by Race & Ethnicity
  With Sujeong Park


• Hospital-Physician Integration in Obstetrics: Implications for Access, Maternal Care, and Neonatal Outcomes
  With Christopher Whaley


• The impact of hospital acquisitions on the access to care and health outcomes for private health insurance patients

Grants & Funding

Academic Grants & Funded Projects

• Agency for Healthcare Research and Quality T32 Postdoctoral Fellow, 2024 – Present
• Institute for Humane Studies Hayek Fund, 2024 ($1,000)
• Agency for Healthcare Research and Quality T32 Predoctoral Trainee, 2019 – 2021

Federally Sponsored Independent Projects

• Principal Investigator, MITRE Corporation Innovation Program, 2017 – 2018 ($110,000)
• Principal Investigator, MITRE Early Career Research Program, 2016 – 2017 ($77,000)