World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
59
Citations
12183
World Ranking
3720
National Ranking
2085

Peter D. Friedmann publication distribution in Psychology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Psychology in 2026. The highlighted bar marks where Peter D. Friedmann sits on this spectrum.

31–40 publications: 6 scientists 41–50 publications: 52 scientists 51–60 publications: 138 scientists 61–70 publications: 299 scientists 71–80 publications: 461 scientists 81–90 publications: 605 scientists 91–100 publications: 713 scientists 101–110 publications: 736 scientists 111–120 publications: 686 scientists 121–130 publications: 670 scientists 131–140 publications: 644 scientists 141–150 publications: 597 scientists 151–160 publications: 576 scientists 161–170 publications: 477 scientists 171–180 publications: 450 scientists 181–190 publications: 397 scientists 191–200 publications: 343 scientists 201–210 publications: 328 scientists 211–220 publications: 313 scientists 221–230 publications: 283 scientists 231–240 publications: 226 scientists 241–250 publications: 196 scientists 251–260 publications: 201 scientists 261–270 publications: 171 scientists 271–280 publications: 151 scientists 281–290 publications: 139 scientists 291–300 publications: 113 scientists 301–310 publications: 102 scientists 311–320 publications: 100 scientists 321–330 publications: 76 scientists 331–340 publications: 92 scientists 341–350 publications: 85 scientists 351–360 publications: 69 scientists 361–370 publications: 71 scientists 371–380 publications: 63 scientists 381–390 publications: 58 scientists 391–400 publications: 57 scientists 401–410 publications: 43 scientists 411–420 publications: 33 scientists 421–430 publications: 50 scientists 431–440 publications: 41 scientists 441–450 publications: 32 scientists 451–460 publications: 27 scientists 461–470 publications: 28 scientists 471–480 publications: 25 scientists 481–490 publications: 28 scientists 491–500 publications: 20 scientists 501–510 publications: 23 scientists 511–520 publications: 26 scientists 521–530 publications: 17 scientists 531–540 publications: 21 scientists 541–550 publications: 14 scientists 551–560 publications: 16 scientists 561–570 publications: 10 scientists 571–580 publications: 22 scientists 581–590 publications: 9 scientists 591–600 publications: 14 scientists 601–610 publications: 9 scientists 611–620 publications: 11 scientists 621–630 publications: 4 scientists 631–640 publications: 7 scientists 641–650 publications: 5 scientists 651–660 publications: 10 scientists 661–670 publications: 8 scientists 671–680 publications: 8 scientists 681–690 publications: 4 scientists 691–700 publications: 3 scientists 701–704 publications: 4 scientists 705+ publications: 100 scientists
31 publications 705+

This scientist: 163 publications — 56th percentile

56% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 705 publications or more.

Peter D. Friedmann D-index placement in Psychology in 2026

The chart shows the D-index (discipline H-index) distribution of Psychology scientists ranked by Research.com in 2026. The highlighted bar marks where Peter D. Friedmann sits on this spectrum.

30–31 D-Index: 398 scientists 32–33 D-Index: 702 scientists 34–35 D-Index: 671 scientists 36–37 D-Index: 659 scientists 38–39 D-Index: 641 scientists 40–41 D-Index: 671 scientists 42–43 D-Index: 617 scientists 44–45 D-Index: 558 scientists 46–47 D-Index: 495 scientists 48–49 D-Index: 487 scientists 50–51 D-Index: 445 scientists 52–53 D-Index: 390 scientists 54–55 D-Index: 408 scientists 56–57 D-Index: 345 scientists 58–59 D-Index: 325 scientists 60–61 D-Index: 321 scientists 62–63 D-Index: 248 scientists 64–65 D-Index: 290 scientists 66–67 D-Index: 218 scientists 68–69 D-Index: 219 scientists 70–71 D-Index: 215 scientists 72–73 D-Index: 183 scientists 74–75 D-Index: 169 scientists 76–77 D-Index: 132 scientists 78–79 D-Index: 137 scientists 80–81 D-Index: 120 scientists 82–83 D-Index: 112 scientists 84–85 D-Index: 86 scientists 86–87 D-Index: 101 scientists 88–89 D-Index: 83 scientists 90–91 D-Index: 77 scientists 92–93 D-Index: 70 scientists 94–95 D-Index: 78 scientists 96–97 D-Index: 58 scientists 98–99 D-Index: 53 scientists 100–101 D-Index: 57 scientists 102–103 D-Index: 48 scientists 104–105 D-Index: 53 scientists 106–107 D-Index: 46 scientists 108–109 D-Index: 24 scientists 110–111 D-Index: 35 scientists 112–113 D-Index: 27 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 31 scientists 118–119 D-Index: 22 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 24 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 11 scientists 128–129 D-Index: 19 scientists 130–131 D-Index: 10 scientists 132–133 D-Index: 16 scientists 134–135 D-Index: 10 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 5 scientists 142–143 D-Index: 12 scientists 144+ D-Index: 98 scientists
30 D-Index 144+

This scientist: 59 D-Index — 68th percentile

68% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 144 D-Index or more.

Overview

Peter D. Friedmann is affiliated with the University of Massachusetts Chan Medical School in the United States. Their research primarily addresses issues related to opioid use disorder and substance abuse treatment within the field of medicine, with a focus on epidemiology and public health.

The scientist's research topics include:

  • Opioid Use Disorder Treatment
  • Substance Abuse Treatment and Outcomes
  • HIV, Drug Use, Sexual Risk
  • Prenatal Substance Exposure Effects
  • Health Policy Implementation Science
  • Hepatitis C virus research
  • Pharmaceutical Practices and Patient Outcomes

Among frequent co-authors are:

  • Thomas J. Stopka
  • Ryan P. Westergaard
  • April M. Young
  • Mai T. Pho
  • Vivian F. Go

Peter D. Friedmann has published extensively in several key journals related to substance use and addiction. The most common publication venues include:

  • Drug and Alcohol Dependence
  • International Journal of Drug Policy
  • Addiction Science & Clinical Practice
  • Journal of Substance Abuse Treatment
  • JAMA Network Open

Selected recent papers authored or co-authored by Peter D. Friedmann include:

  • Recidivism and mortality after in-jail buprenorphine treatment for opioid use disorder, 2022, Drug and Alcohol Dependence
  • The Rural Opioid Initiative Consortium description: providing evidence to Understand the Fourth Wave of the Opioid Crisis, 2022, Addiction Science & Clinical Practice
  • Availability of Medications for the Treatment of Alcohol and Opioid Use Disorder in the USA, 2020, Neurotherapeutics
  • Medication for opioid use disorder treatment continuity post-release from jail: A qualitative study with community-based treatment providers, 2022, International Journal of Drug Policy
  • Massachusetts Justice Community Opioid Innovation Network (MassJCOIN), 2021, Journal of Substance Abuse Treatment

The primary fields of study for Peter D. Friedmann reflect a focus on medicine with specific concentration in subfields such as epidemiology, public health, pediatrics and child health, general health professions, and hepatology. This multidisciplinary approach is evident in their wide-ranging research on substance use disorders and associated health outcomes.

Best Publications

  • Patients' Use of the Internet for Medical Information

    Joseph A Diaz;Rebecca A Griffith;James J Ng;Steven E Reinert

  • Classification and regression tree analysis in public health: methodological review and comparison with logistic regression

    Stephenie C. Lemon;Jason Roy;Melissa A. Clark;Peter D. Friedmann

  • Does retention matter? Treatment duration and improvement in drug use.

    Zhiwei Zhang;Peter D Friedmann;Dean R Gerstein

  • Extended-Release Naltrexone to Prevent Opioid Relapse in Criminal Justice Offenders

    Joshua D. Lee;Peter D. Friedmann;Timothy W. Kinlock;Edward V. Nunes

  • Disturbed Sleep and Its Relationship to Alcohol Use

    Michael D Stein;Peter D Friedmann

  • Barriers to Screening for Domestic Violence

    Lorrie Elliott;Michael Nerney;Theresa Jones;Peter D. Friedmann

  • Screening and intervention for alcohol problems

    Peter D. Friedmann;Deirdre McCullough;Marshall H. Chin;Richard Saitz

  • Benefits of Linking Primary Medical Care and Substance Abuse Services: Patient, Provider, and Societal Perspectives

    Jeffrey H. Samet;Peter Friedmann;Richard Saitz

  • 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

  • Appropriateness of medication selection for older persons in an urban academic emergency department.

    Marshall H. Chin;Linda C. Wang;Lei Jin;Robert Mulliken

  • Evidence-based treatment practices for drug-involved adults in the criminal justice system.

    Peter D. Friedmann;Faye S. Taxman;Craig E. Henderson

  • Early revisit, hospitalization, or death among older persons discharged from the ED.

    Peter D. Friedmann;Lei Jin;Theodore G. Karrison;Deon Cox Hayley

  • Developing an opioid use disorder treatment cascade: A review of quality measures.

    Arthur Robin Williams;Edward V. Nunes;Adam Bisaga;Harold A. Pincus

  • Management of Adults Recovering From Alcohol or Other Drug Problems: Relapse Prevention in Primary Care

    Peter D. Friedmann;Richard Saitz;Jeffrey H. Samet

  • The impact of smoking cessation on drug abuse treatment outcome.

    Stephenie C Lemon;Stephenie C Lemon;Peter D Friedmann;Peter D Friedmann;Michael D Stein;Michael D Stein

  • Differences in Generalist and Specialist Physicians’ Knowledge and Use of Angiotensin-Converting Enzyme Inhibitors for Congestive Heart Failure

    Marshall H. Chin;Peter D. Friedmann;Christine K. Cassel;Roberto M. Lang

  • Medical and psychosocial services in drug abuse treatment: do stronger linkages promote client utilization?

    Peter D. Friedmann;Thomas A. D'Aunno;Lei Jin;Jeffrey A. Alexander

  • Organizational correlates of access to primary care and mental health services in drug abuse treatment units

    Peter D. Friedmann;Jeffrey A. Alexander;Thomas A. D’Aunno

  • Clinical practice. Alcohol use in adults.

    Peter D Friedmann

  • Attitudes and practices regarding the use of methadone in US state and federal prisons.

    Josiah D. Rich;Amy E. Boutwell;David C. Shield;R. Garrett Key

Frequent Co-Authors

Michael D. Stein
Michael D. Stein Boston University
Traci C. Green
Traci C. Green Brown University
Thomas D'Aunno
Thomas D'Aunno New York University
Bradley J. Anderson
Bradley J. Anderson Butler Hospital
Richard Saitz
Richard Saitz Boston University
Faye S. Taxman
Faye S. Taxman George Mason University
Harold A. Pollack
Harold A. Pollack University of Chicago
Kevin Knight
Kevin Knight Texas Christian University
Edward V. Nunes
Edward V. Nunes Columbia University
Charles P. O'Brien
Charles P. O'Brien University of Pennsylvania

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