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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Social Sciences and Humanities 61 1386 1236 649 570 251 10424

Robert P. Schwartz publications per year

The chart shows the history of publications by Robert P. Schwartz between 1984 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Robert P. Schwartz published across 42 years, from 1984 to 2025, averaging 7.7 papers a year. Output peaked at 24 publications in 2015. 17 of the 323 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1984 to 2025. Vertical axis: number of publications, 0 to 24. Peak 24 publications in 2015. 1984: 1 publication 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 1 publication 1992: 0 publications 1993: 3 publications 1994: 0 publications 1995: 2 publications 1996: 2 publications 1997: 1 publication 1998: 1 publication 1999: 4 publications 2000: 1 publication 2001: 1 publication 2002: 4 publications 2003: 2 publications 2004: 2 publications 2005: 3 publications 2006: 4 publications 2007: 7 publications 2008: 8 publications 2009: 13 publications 2010: 7 publications 2011: 9 publications 2012: 13 publications 2013: 19 publications 2014: 17 publications 2015: 24 publications 2016: 21 publications 2017: 20 publications 2018: 19 publications 2019: 20 publications 2020: 24 publications 2021: 24 publications 2022: 11 publications 2023: 18 publications 2024: 13 publications 2025: 4 publications
1984 2025

323 publications in total across all disciplines

View publications per year as a table
Robert P. Schwartz: publications per year, 1984 to 2025
Year Publications
1984 1
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 1
1992 0
1993 3
1994 0
1995 2
1996 2
1997 1
1998 1
1999 4
2000 1
2001 1
2002 4
2003 2
2004 2
2005 3
2006 4
2007 7
2008 8
2009 13
2010 7
2011 9
2012 13
2013 19
2014 17
2015 24
2016 21
2017 20
2018 19
2019 20
2020 24
2021 24
2022 11
2023 18
2024 13
2025 4
Total 323
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Robert P. Schwartz publications per year - data summary

  • Robert P. Schwartz, a Social Sciences and Humanities scholar from University of Maryland, Baltimore, has 323 publications recorded across 42 years, from 1984 to 2025.
  • The oldest publication on record dates to 1984 and the most recent to 2025.
  • The most productive years are 2015, 2020 and 2021, with 24 publications each.
  • The least productive years with any output are 1984, 1991, 1997, 1998 and others, with 1 publication each.
  • 8 of the 42 years in the span carry no publications at all (1985, 1986, 1987, 1988 and others).
  • The rate of publication averages 7.7 papers per year over the whole span, or 9.5 per year counting only the 34 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 70 publications, 22% of the career total.
  • Split into equal eras - 1984-1997: 10 publications (0.7 per year); 1998-2011: 66 publications (4.7 per year); 2012-2025: 247 publications (17.6 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Robert P. Schwartz publication distribution in Social Sciences and Humanities in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Social Sciences and Humanities in 2026. The highlighted bar marks where Robert P. Schwartz sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 54 bars. Horizontal axis: publications, 44–53 to 570+. Vertical axis: number of scientists, 0 to 474. Most scientists, 474, have 114–123 publications. The last bar groups every scientist with 570 publications or more. The highlighted bar, 244–253 publications, is where this scientist sits. 44–53 publications: 28 scientists 54–63 publications: 61 scientists 64–73 publications: 161 scientists 74–83 publications: 225 scientists 84–93 publications: 301 scientists 94–103 publications: 390 scientists 104–113 publications: 406 scientists 114–123 publications: 474 scientists 124–133 publications: 453 scientists 134–143 publications: 434 scientists 144–153 publications: 407 scientists 154–163 publications: 411 scientists 164–173 publications: 391 scientists 174–183 publications: 313 scientists 184–193 publications: 319 scientists 194–203 publications: 304 scientists 204–213 publications: 285 scientists 214–223 publications: 246 scientists 224–233 publications: 213 scientists 234–243 publications: 170 scientists 244–253 publications: 167 scientists 254–263 publications: 162 scientists 264–273 publications: 138 scientists 274–283 publications: 138 scientists 284–293 publications: 113 scientists 294–303 publications: 106 scientists 304–313 publications: 95 scientists 314–323 publications: 101 scientists 324–333 publications: 81 scientists 334–343 publications: 69 scientists 344–353 publications: 56 scientists 354–363 publications: 36 scientists 364–373 publications: 42 scientists 374–383 publications: 41 scientists 384–393 publications: 44 scientists 394–403 publications: 27 scientists 404–413 publications: 30 scientists 414–423 publications: 20 scientists 424–433 publications: 29 scientists 434–443 publications: 29 scientists 444–453 publications: 25 scientists 454–463 publications: 19 scientists 464–473 publications: 21 scientists 474–483 publications: 11 scientists 484–493 publications: 17 scientists 494–503 publications: 7 scientists 504–513 publications: 6 scientists 514–523 publications: 12 scientists 524–533 publications: 10 scientists 534–543 publications: 7 scientists 544–553 publications: 6 scientists 554–563 publications: 12 scientists 564–569 publications: 8 scientists 570+ publications: 100 scientists
44–53 publications 570+

This scientist: 251 publications — 79th percentile

79% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 570 publications or more.

View publications distribution as a table
Number of Social Sciences and Humanities scientists by publication count, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
Publications Scientists This scientist
44–53 28
54–63 61
64–73 161
74–83 225
84–93 301
94–103 390
104–113 406
114–123 474
124–133 453
134–143 434
144–153 407
154–163 411
164–173 391
174–183 313
184–193 319
194–203 304
204–213 285
214–223 246
224–233 213
234–243 170
244–253 167 251
254–263 162
264–273 138
274–283 138
284–293 113
294–303 106
304–313 95
314–323 101
324–333 81
334–343 69
344–353 56
354–363 36
364–373 42
374–383 41
384–393 44
394–403 27
404–413 30
414–423 20
424–433 29
434–443 29
444–453 25
454–463 19
464–473 21
474–483 11
484–493 17
494–503 7
504–513 6
514–523 12
524–533 10
534–543 7
544–553 6
554–563 12
564–569 8
570+ 100
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Robert P. Schwartz publication distribution in Social Sciences and Humanities in 2026 - data summary

  • The chart plots the publication count of all 7,777 Social Sciences and Humanities scientists ranked by Research.com in 2026, grouped into 54 ranges running from 44–53 to 570+ publications.
  • Robert P. Schwartz, a Social Sciences and Humanities scholar from University of Maryland, Baltimore, records 251 publications - the 79th percentile of the discipline.
  • 79% of ranked Social Sciences and Humanities scientists score the same or lower than Robert P. Schwartz, and about 21% score higher.
  • The median of the discipline falls in the 164–173 publications range, and Robert P. Schwartz ranks above the median.
  • The most crowded range is 114–123 publications, holding 474 scientists (6% of the field).
  • 57% of the field sits in the lowest quarter of the value range (up to 174–183 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 570 publications or more, 100 scientists in all (1% of the field).

Robert P. Schwartz D-index placement in Social Sciences and Humanities in 2026

The chart shows the D-index (discipline H-index) distribution of Social Sciences and Humanities scientists ranked by Research.com in 2026. The highlighted bar marks where Robert P. Schwartz sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 71 bars. Horizontal axis: D-Index, 30 to 100+. Vertical axis: number of scientists, 0 to 313. Most scientists, 313, have 42 D-Index. The last bar groups every scientist with 100 D-Index or more. The highlighted bar, 61 D-Index, is where this scientist sits. 30 D-Index: 177 scientists 31 D-Index: 210 scientists 32 D-Index: 222 scientists 33 D-Index: 188 scientists 34 D-Index: 181 scientists 35 D-Index: 243 scientists 36 D-Index: 261 scientists 37 D-Index: 272 scientists 38 D-Index: 278 scientists 39 D-Index: 300 scientists 40 D-Index: 297 scientists 41 D-Index: 308 scientists 42 D-Index: 313 scientists 43 D-Index: 300 scientists 44 D-Index: 269 scientists 45 D-Index: 260 scientists 46 D-Index: 228 scientists 47 D-Index: 251 scientists 48 D-Index: 203 scientists 49 D-Index: 186 scientists 50 D-Index: 187 scientists 51 D-Index: 166 scientists 52 D-Index: 138 scientists 53 D-Index: 141 scientists 54 D-Index: 131 scientists 55 D-Index: 137 scientists 56 D-Index: 109 scientists 57 D-Index: 129 scientists 58 D-Index: 95 scientists 59 D-Index: 105 scientists 60 D-Index: 106 scientists 61 D-Index: 86 scientists 62 D-Index: 94 scientists 63 D-Index: 77 scientists 64 D-Index: 79 scientists 65 D-Index: 59 scientists 66 D-Index: 68 scientists 67 D-Index: 51 scientists 68 D-Index: 49 scientists 69 D-Index: 40 scientists 70 D-Index: 43 scientists 71 D-Index: 40 scientists 72 D-Index: 50 scientists 73 D-Index: 46 scientists 74 D-Index: 43 scientists 75 D-Index: 45 scientists 76 D-Index: 45 scientists 77 D-Index: 30 scientists 78 D-Index: 25 scientists 79 D-Index: 31 scientists 80 D-Index: 29 scientists 81 D-Index: 18 scientists 82 D-Index: 21 scientists 83 D-Index: 26 scientists 84 D-Index: 15 scientists 85 D-Index: 15 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 12 scientists 89 D-Index: 7 scientists 90 D-Index: 19 scientists 91 D-Index: 20 scientists 92 D-Index: 13 scientists 93 D-Index: 9 scientists 94 D-Index: 13 scientists 95 D-Index: 8 scientists 96 D-Index: 7 scientists 97 D-Index: 6 scientists 98 D-Index: 6 scientists 99 D-Index: 6 scientists 100+ D-Index: 97 scientists
30 D-Index 100+

This scientist: 61 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 100 D-Index or more.

View D-Index distribution as a table
Number of Social Sciences and Humanities scientists by D-index, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
D-Index Scientists This scientist
30 177
31 210
32 222
33 188
34 181
35 243
36 261
37 272
38 278
39 300
40 297
41 308
42 313
43 300
44 269
45 260
46 228
47 251
48 203
49 186
50 187
51 166
52 138
53 141
54 131
55 137
56 109
57 129
58 95
59 105
60 106
61 86 61
62 94
63 77
64 79
65 59
66 68
67 51
68 49
69 40
70 43
71 40
72 50
73 46
74 43
75 45
76 45
77 30
78 25
79 31
80 29
81 18
82 21
83 26
84 15
85 15
86 19
87 19
88 12
89 7
90 19
91 20
92 13
93 9
94 13
95 8
96 7
97 6
98 6
99 6
100+ 97
Download as CSV

Robert P. Schwartz D-index placement in Social Sciences and Humanities in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 7,777 Social Sciences and Humanities scientists ranked by Research.com in 2026, grouped into 71 ranges running from 30 to 100+ D-Index.
  • Robert P. Schwartz, a Social Sciences and Humanities scholar from University of Maryland, Baltimore, records 61 D-Index - the 83rd percentile of the discipline.
  • 83% of ranked Social Sciences and Humanities scientists score the same or lower than Robert P. Schwartz, and about 17% score higher.
  • The median of the discipline falls in the 45 D-Index range, and Robert P. Schwartz ranks above the median.
  • The most crowded range is 42 D-Index, holding 313 scientists (4% of the field).
  • 59% of the field sits in the lowest quarter of the value range (up to 47 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 100 D-Index or more, 97 scientists in all (1% of the field).

Overview

Robert P. Schwartz is affiliated with the University of Maryland, Baltimore in the United States. Their research primarily focuses on the field of Medicine, with a significant concentration on Public Health, Environmental and Occupational Health, Epidemiology, and related subfields such as General Health Professions, Pediatrics, Perinatology and Child Health, and Geriatrics and Gerontology.

The central themes in Schwartz's work revolve around opioid use disorder treatment and substance abuse outcomes. Specific topics addressed include:

  • Opioid Use Disorder Treatment
  • Substance Abuse Treatment and Outcomes
  • Prenatal Substance Exposure Effects
  • Health Policy Implementation Science
  • Homelessness and Social Issues
  • Pharmaceutical Practices and Patient Outcomes
  • HIV, Drug Use, Sexual Risk

Schwartz has contributed to multiple high-impact publications. Some recent papers include:

  • "Preventing Hospital Readmission for Patients With Comorbid Substance Use Disorder," 2021, Annals of Internal Medicine
  • "Documented opioid use disorder and its treatment in primary care patients across six U.S. health systems," 2020, Journal of Substance Abuse Treatment
  • "PRimary Care Opioid Use Disorders treatment (PROUD) trial protocol: a pragmatic, cluster-randomized implementation trial in primary care for opioid use disorder treatment," 2021, Addiction Science & Clinical Practice
  • "Implementation Facilitation to Promote Emergency Department-Initiated Buprenorphine for Opioid Use Disorder," 2023, JAMA Network Open
  • "One million screened: Scaling up SBIRT and buprenorphine treatment in hospital emergency departments across Maryland," 2020, The American Journal of Emergency Medicine

Frequently, Schwartz publishes in the following venues:

  • Drug and Alcohol Dependence
  • Journal of Substance Abuse Treatment
  • Addiction Science & Clinical Practice
  • Journal of Substance Use and Addiction Treatment
  • Journal of Addiction Medicine

The scientist often collaborates with a recurring set of co-authors, including:

  • Shannon Gwin Mitchell
  • Jan Gryczynski
  • Kevin E. O'Grady
  • Laura B. Monico
  • Courtney Nordeck

Best Publications

  • Opioid agonist treatments and heroin overdose deaths in Baltimore, Maryland, 1995-2009.

    Robert P. Schwartz;Jan Gryczynski;Kevin E. O’Grady;Joshua M. Sharfstein

  • A randomized clinical trial of methadone maintenance for prisoners: results at 12 months postrelease.

    Timothy W. Kinlock;Michael S. Gordon;Robert P. Schwartz;Terrence T. Fitzgerald

  • Performance of the Tobacco, Alcohol, Prescription Medication, and Other Substance Use (TAPS) Tool for Substance Use Screening in Primary Care Patients

    Jennifer McNeely;Li Tzy Wu;Geetha Subramaniam;Gaurav Sharma

  • Medication-assisted treatment in criminal justice agencies affiliated with the criminal justice-drug abuse treatment studies (CJ-DATS): availability, barriers, and intentions.

    Peter D. Friedmann;Randall Hoskinson;Randall Hoskinson;Randall Hoskinson;Michael Gordon;Robert Schwartz

  • A randomized clinical trial of methadone maintenance for prisoners: findings at 6 months post-release.

    Michael S. Gordon;Timothy W. Kinlock;Robert P. Schwartz;Kevin E. O’Grady

  • SBIRT for adolescent drug and alcohol use: Current status and future directions

    Shannon Gwin Mitchell;Jan Gryczynski;Kevin E. O'Grady;Robert P. Schwartz

  • A Randomized Controlled Trial of Interim Methadone Maintenance

    Robert P Schwartz;David A Highfield;Jerome H Jaffe;Joseph V Brady

  • A randomized clinical trial of methadone maintenance for prisoners: Results at 1-month post-release

    Timothy W. Kinlock;Michael S. Gordon;Robert P. Schwartz;Kevin O’Grady

  • Why don't out-of-treatment individuals enter methadone treatment programmes?

    James A. Peterson;Robert P. Schwartz;Shannon Gwin Mitchell;Heather Schacht Reisinger

  • Pregnant Women's Current and Intended Cannabis Use in Relation to Their Views Toward Legalization and Knowledge of Potential Harm.

    Katrina Mark;Jan Gryczynski;Ellen Axenfeld;Robert P. Schwartz

  • Predictors of methadone treatment retention from a multi-site study: a survival analysis.

    Sharon M. Kelly;Kevin E. O’Grady;Shannon Gwin Mitchell;Barry S. Brown

  • Validity of Brief Screening Instrument for Adolescent Tobacco, Alcohol, and Drug Use

    Sharon M. Kelly;Jan Gryczynski;Shannon Gwin Mitchell;Arethusa Kirk

  • Update on Barriers to Pharmacotherapy for Opioid Use Disorders.

    Anjalee Sharma;Sharon M. Kelly;Shannon Gwin Mitchell;Jan Gryczynski

  • Attitudes Toward Buprenorphine and Methadone Among Opioid-Dependent Individuals

    Robert P. Schwartz;Sharon M. Kelly;Kevin E. O'Grady;Shannon Gwin Mitchell

  • Psychiatric, psychosocial, and physical health correlates of co-occurring cannabis use disorders and nicotine dependence

    Erica N. Peters;Robert P. Schwartz;Shuai Wang;Kevin E. O’Grady

  • Leaving buprenorphine treatment: Patients' reasons for cessation of care

    Jan Gryczynski;Shannon Gwin Mitchell;Jerome H. Jaffe;Kevin E. O’Grady

  • A Study of Methadone Maintenance for Male Prisoners 3-Month Postrelease Outcomes

    Timothy W. Kinlock;Michael S. Gordon;Robert P. Schwartz;Kevin E. O'Grady

  • Buprenorphine Treatment and 12-step Meeting Attendance: Conflicts, Compatibilities, and Patient Outcomes.

    Laura B. Monico;Jan Gryczynski;Shannon Gwin Mitchell;Robert P. Schwartz

  • A randomized controlled trial of prison-initiated buprenorphine: Prison outcomes and community treatment entry

    Michael S. Gordon;Timothy W. Kinlock;Robert P. Schwartz;Terrence T. Fitzgerald

  • Premature Discharge from Methadone Treatment: Patient Perspectives

    Heather Schacht Reisinger;Robert P. Schwartz;Shannon Gwin Gwin Mitchell;James A. Peterson

  • Uses of Diverted Methadone and Buprenorphine by Opioid-Addicted Individuals in Baltimore, Maryland

    Shannon Gwin Mitchell;Sharon M. Kelly;Barry S. Brown;Heather Schacht Reisinger

  • Prevalence, patterns, and correlates of multiple substance use disorders among adult primary care patients

    William S. John;He Zhu;Paolo Mannelli;Robert P. Schwartz

Frequent Co-Authors

Kevin E. O'Grady
Kevin E. O'Grady University of Maryland, College Park
Shannon Gwin Mitchell
Shannon Gwin Mitchell Friends Research Institute
Barry S. Brown
Barry S. Brown University of North Carolina Wilmington
Lisa R. Metsch
Lisa R. Metsch Columbia University
Robert K. Brooner
Robert K. Brooner Johns Hopkins University School of Medicine
Daniel J. Feaster
Daniel J. Feaster University of Miami
James L. Sorensen
James L. Sorensen University of California, San Francisco
Gary A. Zarkin
Gary A. Zarkin Research Triangle Park Foundation
Maxine L. Stitzer
Maxine L. Stitzer Johns Hopkins University School of Medicine
Stephen T. Higgins
Stephen T. Higgins University of Vermont

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