Dr. Peter J. Na is an addiction psychiatrist at the VA Connecticut Healthcare System and an assistant professor of psychiatry at Yale School of Medicine. He received his M.D. degree from Seoul National University College of Medicine and M.P.H. degree from the Harvard School of Public Health. He completed his psychiatry residency at Mayo Clinic and New York University, and addiction psychiatry fellowship at Yale. To date, he has published more than 70 peer-reviewed manuscripts and book chapters on suicide, addiction, and the intersection between the two conditions. Dr. Na’s research interests are in the intersection of substance use disorders and suicidal behavior and mental health of veterans. His research focuses on the psychosocial, environmental and genetic factors that contribute to the development of addiction and suicidal behavior.
- Fischer IC, Na PJ, Feldman DB, Krist AH, Kudler HS, Jeste DV, Pietrzak RH. Well-being domains in US military veterans: Identifying modifiable factors to promote Whole Health. International Psychogeriatrics. Online ahead of print.
- Reed DE, Fischer IC, Williams RM, Na PJ, Pietrzak RH. Co-occurring chronic pain and PTSD among US military veterans: Prevalence, correlates and functioning. Journal of General Internal Medicine. In press.
- Fischer IC, Na PJ, Feldman DB, Krist, AH, Kudler HS, Jeste DV, Pietrzak RH. Modifiable Factors Associated with Functioning in US Veterans. JAMA Network Open. In press.
- Na PJ, Gelernter J, Pietrzak RH. Genes in context: A path to more precise risk prediction in psychiatry? British Journal of Psychiatry. In press.
- Fischer IC, Na PJ, Harpaz-Rotem I, Marx BP, Pietrzak RH. Prevalence, correlates, and burden of subthreshold PTSD in US veterans. Journal of Clinical Psychiatry. In press.
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Na PJ, Ryoo HW, Kim JY. South Korea’s existential public health emergency: Tackling the low birth rate, loneliness and suicide crises. IGEE Proceedings. In press.
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7. Na PJ, Jeste DV, Pietrzak RH. Social disconnection as a global behavioral epidemic: A call to action about a major health risk factor. JAMA Psychiatry. 2023, 80(2): 101-102.
- Na PJ, Lim YY, Pietrzak RH. Loneliness as a risk factor for dementia and other adverse health outcomes: Commentary on “Loneliness and risk of all-cause, Alzheimer’s, vascular, and frontotemporal dementia: A prospective study of 492,322 Individuals over 15 years” by Sutin et al., International Psychogeriatrics. 2023,35(6):271-274.
- Na PJ. Appreciating eudaimonic well-being and positive psychosocial characteristics in mental
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health research: Commentary on “Identifying significant correlates of purpose in life in US
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military veterans: Results from the National Health and Resilience in Veterans Study” by Fischer
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et al., International Psychogeriatrics. 2023,35(10):537-540.
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Wolfgang A, Weimer M, Na PJ, Fiellin D, Muvvala S. Long-term treatment of opioid use disorder with medications. In The Oxford handbook of opioids and opioid use disorder. Ed Dunn K. Oxford University Press, NY: New York, 2023.
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Jegede O, Na PJ, Petrakis IL, Muvvala S. Medical student education. In The Oxford handbook of opioids and opioid use disorder. Ed Dunn K. Oxford University Press, NY: New York, 2023.
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Kang H, Fischer IC, Dickinson S, Na PJ, Tsai J, Tedeschi RG, Pietrzak RH. Posttraumatic growth in US military veterans: Results from the National Health and Resilience in Veterans Study. Psychiatric Quarterly. 2024,95:17-32.
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Na PJ, Fischer IC, Petrakis IL, Pietrzak RH. Alcohol use trajectories in US military veterans over the course of the COVID-19 pandemic: A 3-year, population based, longitudinal study. Psychiatric Quarterly. 2024,95:157-171.
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Na PJ,* Deak J,* Kranzler H, Pietrzak RH, Gelernter J. Genetic and non-genetic predictors of risk for opioid use disorder. Psychological Medicine. Online ahead of print. *indicate co-first authors.
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Na PJ, Petrakis IL, Krystal JH, Pietrzak RH. Problem opioid use among military veterans in the United States: Prevalence, correlates, and psychiatric characteristics. Journal of Addiction Medicine. Online ahead of print.
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Fischer IC, Na PJ, Harpaz-Rotem I, Krystal JH, Pietrzak RH. Characterization of Mental Health in US Veterans Before, During, and 2 Years After the Onset of the COVID-19 Pandemic. JAMA Network Open. 2023,6(2):e230463.
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Hill ML, Nichter B, Na PJ, Norman SB, Morland LA, Krystal JH, Pietrzak RH. Mental health impact of the COVID-19 pandemic in US military veterans: A population-based, prospective cohort study. Psychological Medicine. 2023,53(3):945-956.
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Na PJ, Montalvo-Ortiz J, Petrakis IL, Krystal JH, Polimanti R, Gelernter J, Pietrzak RH. Trajectories of alcohol consumption in US military veterans: Results from a 10-year population-based longitudinal study. Drug and Alcohol Dependence. 2023, 246:109833.
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Fischer IC, Nichter B, Na PJ, Norman SB, Krystal JH, Pietrzak RH. Longitudinal trends in suicidal thoughts and behaviors among US military veterans during the COVID-19 pandemic. JAMA Psychiatry. 2023,80(6):577-584.
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Na PJ, Fischer IC, Shear MK, Pietrzak RH. Prevalence and correlates of prolonged grief disorder in US military veterans: Results from a nationally representative study. American Journal of Geriatric Psychiatry. 2023,31(7):543-548.
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Meisler AW, Gianoli MO, Na PJ, Pietrzak RH. Functional disability in US military veterans: The importance of integrated whole health initiatives. The Primary Care Companion for CNS Disorders. 2023, 25(4):22br03406.
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Whealin JM, Fischer IC, Jaworski BK, Na PJ, Pietrzak RH. COVID-19-related media consumption and posttraumatic stress symptoms in US military veterans: A nationally representative, longitudinal study. Psychiatry Research. 2023, 326:15354.
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Nichter B, Koller D, DeAngelis F, Wang J, Girgenti M, Na PJ, Hill ML, Norman SB, Krystal JH, Gelernter J, Polimanti R, Pietrzak RH. Genetic liability to suicidal thoughts and behaviors and risk of suicide attempt in US military veterans: Moderating effects of cumulative trauma burden. Psychological Medicine. 2023,53(13):6325-6333.
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Fischer IC, Aunon FM, Nichter B, Hill ML, Panza KE, Kline AC, Na PJ, Tsai J, Harpaz-Rotem I, Pietrzak RH. Prevalence and correlates of firearm ownership among US military veterans: Results from the National Health and Resilience in Veterans Study. American Journal of Preventive Medicine. 2023,65(6):1129-1133.
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Kang H, Na PJ, Fischer IC, Tsai J, Tedeschi RG, Pietrzak RH. COVID-19 pandemic-related posttraumatic growth in US military veterans: A 3-year, nationally representative, prospective cohort study. Psychiatry Research. 2023, 326:115370.
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Fischer IC, Nichter B, Feldman DB, Na PJ, Tsai J, Harpaz-Rotem I, Schulenberg SE, Pietrzak RH. Purpose in life protects against the development of suicidal thoughts and behaviors in US veterans: A 10-year, nationally representative, longitudinal study. Journal of Affective Disorders. 2023, 340:551-554.
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Spiller TR, Na PJ, Merians AN, Duek O, Tsai J, von Känel R, Harpaz-Rotem I, Pietrzak RH. Changes in mental health among US military veterans during the COVID-19 pandemic: A network analysis. Journal of Psychiatric Research. 2023,165:352-359.
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Na PJ, Fischer IC, Crist A, Kudler HS, Jeste DV, Pietrzak RH. Well-being of US military veterans. JAMA Network Open. 2023,6(12):e2346709.
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Morse J, Fischer IC, Na PJ, Pietrzak RH. Functional decline during the COVID-19 pandemic among US military veterans: Results from the National Health and Resilience in Veterans Study. International Journal of Geriatric Psychiatry. 2023,38(12):e6040.
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Na PJ, Zhou H, Montalvo-Ortiz J, Cabrera-Mendoza B, Petrakis IL, Krystal JH, Polimanti R, Gelernter J, Pietrzak RH. Positive personality traits moderate persistent high alcohol consumption, determined by polygenic risk in US military veterans: Results from a 10-year, population-based, longitudinal study. Psychological Medicine. 2023,53(16):7893-7901.