Gregory E. Simon

36.5k total citations · 10 hit papers
347 papers, 26.0k citations indexed

About

Gregory E. Simon is a scholar working on Social Psychology, Clinical Psychology and Psychiatry and Mental health. According to data from OpenAlex, Gregory E. Simon has authored 347 papers receiving a total of 26.0k indexed citations (citations by other indexed papers that have themselves been cited), including 166 papers in Social Psychology, 151 papers in Clinical Psychology and 115 papers in Psychiatry and Mental health. Recurrent topics in Gregory E. Simon's work include Mental Health Treatment and Access (163 papers), Suicide and Self-Harm Studies (77 papers) and Schizophrenia research and treatment (58 papers). Gregory E. Simon is often cited by papers focused on Mental Health Treatment and Access (163 papers), Suicide and Self-Harm Studies (77 papers) and Schizophrenia research and treatment (58 papers). Gregory E. Simon collaborates with scholars based in United States, United Kingdom and Italy. Gregory E. Simon's co-authors include Michael VonKorff, Evette Ludman, Michael Von Korff, Ronald C. Kessler, Belinda H. Operskalski, Wayne Katon, Elizabeth Lin, Philip S. Wang, Marco Piccinelli and Arne Beck and has published in prestigious journals such as New England Journal of Medicine, The Lancet and JAMA.

In The Last Decade

Gregory E. Simon

333 papers receiving 24.7k citations

Hit Papers

Association Between Obesity and Psychiatric Disorders in ... 1997 2026 2006 2016 2006 1999 2003 2006 1997 250 500 750 1000
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Association Between Obesity and Psychiatric Disorders in the US Adult Population
    2006 1.0k citations Gregory E. Simon, Ronald C. Kessler et al. profile →
  2. An International Study of the Relation between Somatic Symptoms and Depression
    1999 942 citations Gregory E. Simon et al. profile →
  3. The World Health Organization Health and Work Performance Questionnaire (HPQ)
    2003 861 citations Ronald C. Kessler, Catherine Barber et al. Journal of Occupational and Environmental Medicine profile →
  4. Prevalence and Effects of Mood Disorders on Work Performance in a Nationally Representative Sample of U.S. Workers
    2006 621 citations Ronald C. Kessler, Gregory E. Simon et al. profile →
  5. Prevalence, burden, and treatment of insomnia in primary care
    1997 521 citations Gregory E. Simon et al. profile →
  6. Effectiveness of an intervention led by lay health counsellors for depressive and anxiety disorders in primary care in Goa, India (MANAS): a cluster randomised controlled trial
    2010 502 citations Gregory E. Simon et al. profile →
  7. Health Care Contacts in the Year Before Suicide Death
    2014 473 citations Brian K. Ahmedani, Gregory E. Simon et al. profile →
  8. Does Response on the PHQ-9 Depression Questionnaire Predict Subsequent Suicide Attempt or Suicide Death?
    2013 401 citations Gregory E. Simon, Carolyn M. Rutter et al. profile →
  9. Predicting Suicide Attempts and Suicide Deaths Following Outpatient Visits Using Electronic Health Records
    2018 283 citations Gregory E. Simon, Eric Johnson et al. profile →
  10. Management of Depression in Adults
    2024 62 citations Gregory E. Simon et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Gregory E. Simon United States 86 9.2k 8.0k 7.2k 5.7k 3.4k 347 26.0k
Harvey Whiteford Australia 60 10.0k 1.1× 7.1k 0.9× 5.0k 0.7× 5.7k 1.0× 3.0k 0.9× 320 26.0k
Philip S. Wang United States 56 7.1k 0.8× 6.6k 0.8× 4.4k 0.6× 4.9k 0.9× 3.1k 0.9× 103 22.8k
Simon Gilbody United Kingdom 76 8.0k 0.9× 6.7k 0.8× 4.0k 0.6× 6.2k 1.1× 3.4k 1.0× 331 24.7k
Josep María Haro Spain 77 7.9k 0.9× 4.9k 0.6× 9.4k 1.3× 4.5k 0.8× 2.7k 0.8× 671 26.3k
Darrel A. Regier United States 55 10.8k 1.2× 6.0k 0.7× 7.7k 1.1× 4.1k 0.7× 3.5k 1.0× 153 23.1k
Matthew Hotopf United Kingdom 88 10.9k 1.2× 3.6k 0.4× 7.3k 1.0× 6.4k 1.1× 2.2k 0.7× 587 29.0k
Patricia A. Berglund United States 41 15.2k 1.6× 8.5k 1.1× 5.2k 0.7× 5.5k 1.0× 7.4k 2.2× 82 33.0k
Joan Russo United States 86 9.0k 1.0× 4.6k 0.6× 5.9k 0.8× 5.7k 1.0× 2.0k 0.6× 332 26.3k
Matthias C. Angermeyer Germany 78 10.0k 1.1× 8.6k 1.1× 8.1k 1.1× 4.7k 0.8× 1.8k 0.5× 414 22.2k
Oye Gureje Nigeria 68 7.4k 0.8× 6.0k 0.7× 5.9k 0.8× 5.3k 0.9× 1.3k 0.4× 374 21.8k

Countries citing papers authored by Gregory E. Simon

Since Specialization
Citations

This map shows the geographic impact of Gregory E. Simon's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gregory E. Simon with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gregory E. Simon more than expected).

Fields of papers citing papers by Gregory E. Simon

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gregory E. Simon. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gregory E. Simon. The network helps show where Gregory E. Simon may publish in the future.

Co-authorship network of co-authors of Gregory E. Simon

This figure shows the co-authorship network connecting the top 25 collaborators of Gregory E. Simon. A scholar is included among the top collaborators of Gregory E. Simon based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Gregory E. Simon. Gregory E. Simon is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Williamson, Brian D., Susan Gruber, Bryan E. Shepherd, et al.. (2026). Assessing Treatment Effects in Observational Data With Missing Confounders: A Comparative Study of Practical Doubly‐Robust and Traditional Missing Data Methods. Statistics in Medicine. 45(3-5). e70366–e70366.
2.
Curtis, Lesley H., Stephanie R. Morain, P. Pearl O’Rourke, et al.. (2025). Monitoring in pragmatic trials lessons from the NIH pragmatic trials collaboratory. Contemporary Clinical Trials. 152. 107866–107866.
3.
Pathak, Jyotishman, Judith Cukor, Zhenxing Xu, et al.. (2025). Longitudinal Trajectories of Symptom Change During Antidepressant Treatment Among Managed Care Patients With Depression and Anxiety. Biological Psychiatry. 97(9). S11–S11.
4.
Rossom, Rebecca C., Hsueh‐Han Yeh, Robert B. Penfold, et al.. (2025). Psychiatric Medication Adherence in the United States Before and During the COVID ‐19 Pandemic. Pharmacoepidemiology and Drug Safety. 34(10). e70229–e70229.
5.
Wolock, Charles J., Brian D. Williamson, Susan M. Shortreed, et al.. (2024). Importance of variables from different time frames for predicting self-harm using health system data. Journal of Biomedical Informatics. 160. 104750–104750.
6.
Stewart, Christine, Rebecca Parrish, Ursula Whiteside, et al.. (2024). Reducing Firearm Access for Suicide Prevention: Implementation Evaluation of the Web-Based “Lock to Live” Decision Aid in Routine Health Care Encounters. JMIR Medical Informatics. 12. e48007–e48007. 1 indexed citations
7.
Simon, Gregory E., Susan M. Shortreed, Jennifer M. Boggs, et al.. (2022). Accuracy of ICD-10-CM encounter diagnoses from health records for identifying self-harm events. Journal of the American Medical Informatics Association. 29(12). 2023–2031. 19 indexed citations
8.
Penfold, Robert B., Ursula Whiteside, Eric Johnson, et al.. (2021). Utility of item 9 of the patient health questionnaire in the prospective identification of adolescents at risk of suicide attempt. Suicide and Life-Threatening Behavior. 51(5). 854–863. 17 indexed citations
9.
Rossom, Rebecca C., Bobbi Jo H. Yarborough, Jennifer M. Boggs, et al.. (2021). Prediction of suicidal behavior using self-reported suicidal ideation among patients with bipolar disorder. Journal of Affective Disorders. 295. 410–415. 8 indexed citations
10.
Prabhakar, Deepak, Edward L. Peterson, Yong Hu, et al.. (2020). Serious Suicide Attempts and Risk of Suicide Death. Crisis. 42(5). 343–350. 4 indexed citations
11.
Shortreed, Susan M. & Gregory E. Simon. (2020). Using predictive analytics to improve pragmatic trial design. Clinical Trials. 17(4). 394–401. 1 indexed citations
12.
Yarborough, Bobbi Jo H., Scott P. Stumbo, Brian K. Ahmedani, et al.. (2020). Suicide Behavior Following PHQ-9 Screening Among Individuals With Substance Use Disorders. Journal of Addiction Medicine. 15(1). 55–60. 10 indexed citations
13.
Coleman, Karen J., Bobbi Jo H. Yarborough, Anne Beck, et al.. (2019). Patterns of Health Care Utilization Before First Episode Psychosis in Racial and Ethnic Groups. Ethnicity & Disease. 29(4). 609–616. 8 indexed citations
14.
Ahmedani, Brian K., Edward L. Peterson, Yong Hu, et al.. (2017). Major Physical Health Conditions and Risk of Suicide. American Journal of Preventive Medicine. 53(3). 308–315. 181 indexed citations
15.
Simon, Gregory E., Arne Beck, Rebecca C. Rossom, et al.. (2016). Population-based outreach versus care as usual to prevent suicide attempt: study protocol for a randomized controlled trial. Trials. 17(1). 452–452. 35 indexed citations
16.
Simon, Gregory E., Karen J. Coleman, Rebecca C. Rossom, et al.. (2016). Risk of Suicide Attempt and Suicide Death Following Completion of the Patient Health Questionnaire Depression Module in Community Practice. The Journal of Clinical Psychiatry. 77(2). 221–227. 143 indexed citations
17.
Kessler, Ronald C., Catherine Barber, Arne Beck, et al.. (2003). The World Health Organization Health and Work Performance Questionnaire (HPQ). Journal of Occupational and Environmental Medicine. 45(2). 156–174. 861 indexed citations breakdown →
18.
Wang, Philip S., Arne Beck, Patricia A. Berglund, et al.. (2003). Chronic Medical Conditions and Work Performance in the Health and Work Performance Questionnaire Calibration Surveys. Journal of Occupational and Environmental Medicine. 45(12). 1303–1311. 156 indexed citations
19.
Simon, Gregory E., et al.. (2000). Telephone counseling as an adjunct to antidepressant treatment in the primary care system. A pilot study.. PubMed. 3(4). 170–8. 61 indexed citations
20.
Simon, Gregory E., et al.. (1994). [Variation in drug prescription costs and general practitioners in an area of North-East Italy. The use of current data].. PubMed. 18(61). 224–9. 5 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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