Marvin E. Belzer, MD

Title(s)Professor of Clinical Pediatrics and Medicine
AddressCHL Mail Stop 2
Off Campus
Los Angeles CA 90089
Phone+1 323 361 4758
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    Other Positions
    Title(s)Division Head, Adolescent Medicine


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    Involved in many aspect of adolescent HIV including clinical trials, adherence, secondary prevention. Have conducted research on adherence to contraception and utilization of emergency contraception. Lastly, I am conducting research on HIV prevention and healthcare for youth with gender identity disorder.

    Expert in adolescent medicine, especially HIV/AIDS, sexuality, gender identity, and chronic fatigue syndrome

    Collapse Research 
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    Digital, Limited Interaction Efficacy Trial of LifeSkills Mobile to Reduce HIV Incidence in Young Transgender Women
    NIH U01AI156875Mar 9, 2021 - Feb 28, 2026
    Role: Co-Principal Investigator
    Youth Services Navigation Intervention for HIV+ adolescents and young adults being released from incarceration: A randomized control trial
    NIH R01MD011773Aug 8, 2017 - Mar 31, 2022
    Role: Co-Principal Investigator
    Adolescent Medicine Trials Network for HIV/AIDS Interventions
    NIH U01HD040463Apr 16, 2001 - Feb 28, 2017
    Role: Principal Investigator
    ADOLESCENT MEDICINE HIV/AIDS RESEARCH NETWORK
    NIH U01HD032838Sep 29, 1994 - Nov 30, 2001
    Role: Principal Investigator

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    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. High prevalence of anal high-grade squamous intraepithelial lesions, and prevention through human papillomavirus vaccination, in young men who have sex with men living with HIV. Clin Infect Dis. 2021 May 15. Palefsky JM, Lensing SY, Belzer M, Lee J, Gaur AH, Mayer K, Futterman D, Stier EA, Paul ME, Chiao EY, Reirden D, Goldstone SE, Tirado M, Cachay ER, Barroso LF, Da Costa M, Darragh TM, Rudy BJ, Wilson CM, Kahn JA, AIDS Malignancy Consortium and Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 33991185.
      View in: PubMed   Mentions:    Fields:    
    2. A Uniquely Targeted, Mobile App-Based HIV Prevention Intervention for Young Transgender Women: Adaptation and Usability Study. J Med Internet Res. 2021 Mar 31; 23(3):e21839. Kuhns LM, Hereth J, Garofalo R, Hidalgo M, Johnson AK, Schnall R, Reisner SL, Belzer M, Mimiaga MJ. PMID: 33787503.
      View in: PubMed   Mentions:    Fields:    
    3. The Healthy Young Men's Cohort: Health, Stress, and Risk Profile of Black and Latino Young Men Who Have Sex with Men (YMSM). J Urban Health. 2020 10; 97(5):653-667. Kipke MD, Kubicek K, Akinyemi IC, Hawkins W, Belzer M, Bhandari S, Bray B. PMID: 32864727.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    4. Comparing Different Measures of Retention in Care Among a Cohort of Adolescents and Young Adults Living with Behaviorally-Acquired HIV. AIDS Behav. 2020 Jan; 24(1):304-310. Sayegh CS, Wood SM, Belzer M, Dowshen NL. PMID: 31429029.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. A Focus on the HIV Care Continuum Through the Healthy Young Men's Cohort Study: Protocol for a Mixed-Methods Study. JMIR Res Protoc. 2019 Jan 24; 8(1):e10738. Kipke MD, Kubicek K, Wong CF, Robinson YA, Akinyemi IC, Beyer WJ, Hawkins W, Rice CE, Layland E, Bray BC, Belzer M. PMID: 30679146.
      View in: PubMed   Mentions:
    6. Pre-vaccination prevalence of anogenital and oral human papillomavirus in young HIV-infected men who have sex with men. Papillomavirus Res. 2019 06; 7:52-61. Kahn JA, Belzer M, Chi X, Lee J, Gaur AH, Mayer K, Martinez J, Futterman DC, Stier EA, Paul ME, Chiao EY, Reirden D, Goldstone SE, Ortiz Martinez AP, Cachay ER, Barroso LF, Da Costa M, Wilson CM, Palefsky JM, AIDS Malignancy Consortium and Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 30658128.
      View in: PubMed   Mentions:    Fields:    Translation:HumansCellsCTClinical Trials
    7. Adaptive Antiretroviral Therapy Adherence Interventions for Youth Living With HIV Through Text Message and Cell Phone Support With and Without Incentives: Protocol for a Sequential Multiple Assignment Randomized Trial (SMART). JMIR Res Protoc. 2018 Dec 20; 7(12):e11183. Belzer ME, MacDonell KK, Ghosh S, Naar S, McAvoy-Banerjea J, Gurung S, Cain D, Fan CA, Parsons JT. PMID: 30573448.
      View in: PubMed   Mentions:
    8. The Impact of Cell Phone Support on Psychosocial Outcomes for Youth Living with HIV Nonadherent to Antiretroviral Therapy. AIDS Behav. 2018 Oct; 22(10):3357-3362. Sayegh CS, MacDonell KK, Clark LF, Dowshen NL, Naar S, Olson-Kennedy J, van den Berg JJ, Xu J, Belzer M. PMID: 29948339.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    9. Cell phone support to improve medication adherence among solid organ transplant recipients. Pediatr Transplant. 2018 Jun 19; e13235. Sayegh CS, Szmuszkovicz JR, Menteer J, Sherer S, Thomas D, Lestz R, Belzer M. PMID: 29920879.
      View in: PubMed   Mentions:    Fields:    
    10. HIV-Infected Young Men Demonstrate Appropriate Risk Perceptions and Beliefs about Safer Sexual Behaviors after Human Papillomavirus Vaccination. AIDS Behav. 2018 Jun; 22(6):1826-1834. Kahn JA, Lee J, Belzer M, Palefsky JM, AIDS Malignancy Consortium and Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 28220313.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansPHPublic HealthCTClinical Trials
    11. Chest Reconstruction and Chest Dysphoria in Transmasculine Minors and Young Adults: Comparisons of Nonsurgical and Postsurgical Cohorts. JAMA Pediatr. 2018 05 01; 172(5):431-436. Olson-Kennedy J, Warus J, Okonta V, Belzer M, Clark LF. PMID: 29507933.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    12. Physiologic Response to Gender-Affirming Hormones Among Transgender Youth. J Adolesc Health. 2018 04; 62(4):397-401. Olson-Kennedy J, Okonta V, Clark LF, Belzer M. PMID: 29056436.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    13. Preferences for Injectable PrEP Among Young U.S. Cisgender Men and Transgender Women and Men Who Have Sex with Men. Arch Sex Behav. 2018 10; 47(7):2101-2107. Biello KB, Hosek S, Drucker MT, Belzer M, Mimiaga MJ, Marrow E, Coffey-Esquivel J, Brothers J, Mayer KH. PMID: 28929260.
      View in: PubMed   Mentions: 15     Fields:    Translation:HumansPHPublic Health
    14. Supranormal thymic output up to 2 decades after HIV-1 infection. AIDS. 2016 Mar 13; 30(5):701-11. Aguilera-Sandoval CR, Yang OO, Jojic N, Lovato P, Chen DY, Boechat MI, Cooper P, Zuo J, Ramirez C, Belzer M, Church JA, Krogstad P. PMID: 26730570.
      View in: PubMed   Mentions: 6     Fields:    Translation:HumansCells
    15. Baseline Physiologic and Psychosocial Characteristics of Transgender Youth Seeking Care for Gender Dysphoria. J Adolesc Health. 2015 Oct; 57(4):374-80. Olson J, Schrager SM, Belzer M, Simons LK, Clark LF. PMID: 26208863.
      View in: PubMed   Mentions: 46     Fields:    Translation:Humans
    16. Acceptability and Feasibility of a Cell Phone Support Intervention for Youth Living with HIV with Nonadherence to Antiretroviral Therapy. AIDS Patient Care STDS. 2015 Jun; 29(6):338-45. Belzer ME, Kolmodin MacDonell K, Clark LF, Huang J, Olson J, Kahana SY, Naar S, Sarr M, Thornton S, Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 25928772.
      View in: PubMed   Mentions: 23     Fields:    Translation:Humans
    17. Behavioral and Health Outcomes for HIV+ Young Transgender Women (YTW) Linked To and Engaged in Medical Care. LGBT Health. 2016 Apr; 3(2):162-7. Dowshen N, Matone M, Luan X, Lee S, Belzer M, Fernandez MI, Rubin D, Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 26789394.
      View in: PubMed   Mentions: 16     Fields:    Translation:Humans
    18. Subcutaneous Testosterone: An Effective Delivery Mechanism for Masculinizing Young Transgender Men. LGBT Health. 2014 Sep; 1(3):165-7. Olson J, Schrager SM, Clark LF, Dunlap SL, Belzer M. PMID: 26789709.
      View in: PubMed   Mentions: 6     Fields:    
    19. The use of cell phone support for non-adherent HIV-infected youth and young adults: an initial randomized and controlled intervention trial. AIDS Behav. 2014 Apr; 18(4):686-96. Belzer ME, Naar-King S, Olson J, Sarr M, Thornton S, Kahana SY, Gaur AH, Clark LF, Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 24271347.
      View in: PubMed   Mentions: 46     Fields:    Translation:Humans
    20. Young men and the morning after: a missed opportunity for emergency contraception provision? J Fam Plann Reprod Health Care. 2015 Jan; 41(1):33-7. Schrager SM, Olson J, Beharry M, Belzer M, Goldsich K, Desai M, Clark LF. PMID: 24465024.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    21. Parental support and mental health among transgender adolescents. J Adolesc Health. 2013 Dec; 53(6):791-3. Simons L, Schrager SM, Clark LF, Belzer M, Olson J. PMID: 24012067.
      View in: PubMed   Mentions: 67     Fields:    Translation:Humans
    22. The initial feasibility of a computer-based motivational intervention for adherence for youth newly recommended to start antiretroviral treatment. AIDS Care. 2014 Jan; 26(1):130-5. Outlaw AY, Naar-King S, Tanney M, Belzer ME, Aagenes A, Parsons JT, Merlo LJ, Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 23869650.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    23. Motivational Enhancement System for Adherence (MESA): pilot randomized trial of a brief computer-delivered prevention intervention for youth initiating antiretroviral treatment. J Pediatr Psychol. 2013 Jul; 38(6):638-48. Naar-King S, Outlaw AY, Sarr M, Parsons JT, Belzer M, Macdonell K, Tanney M, Ondersma SJ, Adolescent Medicine Network for HIV/AIDS Interventions . PMID: 23359664.
      View in: PubMed   Mentions: 36     Fields:    Translation:Humans
    24. Barriers to medication adherence in behaviorally and perinatally infected youth living with HIV. AIDS Behav. 2013 Jan; 17(1):86-93. MacDonell K, Naar-King S, Huszti H, Belzer M. PMID: 23142855.
      View in: PubMed   Mentions: 81     Fields:    Translation:Humans
    25. Syndemic theory and HIV-related risk among young transgender women: the role of multiple, co-occurring health problems and social marginalization. Am J Public Health. 2012 Sep; 102(9):1751-7. Brennan J, Kuhns LM, Johnson AK, Belzer M, Wilson EC, Garofalo R, Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 22873480.
      View in: PubMed   Mentions: 136     Fields:    Translation:HumansCells
    26. Parental support and condom use among transgender female youth. J Assoc Nurses AIDS Care. 2012 Jul-Aug; 23(4):306-17. Wilson EC, Iverson E, Garofalo R, Belzer M. PMID: 22079675.
      View in: PubMed   Mentions: 17     Fields:    Translation:Humans
    27. Functional analysis of HIV type 1 Nef gene variants from adolescent and adult survivors of perinatal infection. AIDS Res Hum Retroviruses. 2012 May; 28(5):486-92. Zuo J, Suen J, Wong A, Lewis M, Ayub A, Belzer M, Church J, Yang OO, Krogstad P. PMID: 21861776.
      View in: PubMed   Mentions: 5     Fields:    Translation:HumansCells
    28. Management of the transgender adolescent. Arch Pediatr Adolesc Med. 2011 Feb; 165(2):171-6. Olson J, Forbes C, Belzer M. PMID: 21300658.
      View in: PubMed   Mentions: 18     Fields:    Translation:Humans
    29. Psychological factors, beliefs about medication, and adherence of youth with human immunodeficiency virus in a multisite directly observed therapy pilot study. J Adolesc Health. 2011 Jun; 48(6):637-40. Garvie PA, Flynn PM, Belzer M, Britto P, Hu C, Graham B, Neely M, McSherry GD, Spector SA, Gaur AH, Pediatric AIDS Clinical Trials Group (PACTG) P1036B Team . PMID: 21575827.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    30. Directly observed therapy (DOT) for nonadherent HIV-infected youth: lessons learned, challenges ahead. AIDS Res Hum Retroviruses. 2010 Sep; 26(9):947-53. Gaur AH, Belzer M, Britto P, Garvie PA, Hu C, Graham B, Neely M, McSherry G, Spector SA, Flynn PM, Pediatric AIDS Clinical Trials Group P1036B Team . PMID: 20707731.
      View in: PubMed   Mentions: 15     Fields:    Translation:HumansCells
    31. Short communication: enhanced CD8+ T cell apoptosis in HIV-infected adolescents with virologic failure on protease inhibitor-based therapy. AIDS Res Hum Retroviruses. 2010 Jun; 26(6):681-4. Zuo J, Church J, Belzer M, Kitchen C, Ank B, Schmid I, Krogstad P. PMID: 20507209.
      View in: PubMed   Mentions:    Fields:    Translation:HumansCells
    32. Identification of HIV-infected 12- to 24-year-old men and women in 15 US cities through venue-based testing. Arch Pediatr Adolesc Med. 2010 Mar; 164(3):273-6. Barnes W, D'Angelo L, Yamazaki M, Belzer M, Schroeder S, Palmer-Castor J, Futterman D, Kapogiannis B, Muenz L, Harris DR, Ellen JM, Adolescent Trials Network for HIV/AIDS Interventions . PMID: 20194262.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    33. Youth living with HIV and problem substance use: elevated distress is associated with nonadherence and sexual risk. J Int Assoc Physicians AIDS Care (Chic). 2010 Mar-Apr; 9(2):113-5. Nugent NR, Brown LK, Belzer M, Harper GW, Nachman S, Naar-King S, Adolescent Trials Network for HIV/AIDS Interventions . PMID: 20133498.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    34. Improving health outcomes for youth living with the human immunodeficiency virus: a multisite randomized trial of a motivational intervention targeting multiple risk behaviors. Arch Pediatr Adolesc Med. 2009 Dec; 163(12):1092-8. Naar-King S, Parsons JT, Murphy DA, Chen X, Harris DR, Belzer ME. PMID: 19996045.
      View in: PubMed   Mentions: 35     Fields:    Translation:Humans
    35. Sexual risk taking among transgender male-to-female youths with different partner types. Am J Public Health. 2010 Aug; 100(8):1500-5. Wilson EC, Garofalo R, Harris DR, Belzer M. PMID: 20622176.
      View in: PubMed   Mentions: 28     Fields:    Translation:Humans
    36. Identification of ongoing human immunodeficiency virus type 1 (HIV-1) replication in residual viremia during recombinant HIV-1 poxvirus immunizations in patients with clinically undetectable viral loads on durable suppressive highly active antiretroviral therapy. J Virol. 2009 Oct; 83(19):9731-42. Shiu C, Cunningham CK, Greenough T, Muresan P, Sanchez-Merino V, Carey V, Jackson JB, Ziemniak C, Fox L, Belzer M, Ray SC, Luzuriaga K, Persaud D, Pediatric AIDS Clinical Trials Group P1059 Team . PMID: 19605490.
      View in: PubMed   Mentions: 30     Fields:    Translation:HumansCellsPHPublic Health
    37. Transgender female youth and sex work: HIV risk and a comparison of life factors related to engagement in sex work. AIDS Behav. 2009 Oct; 13(5):902-13. Wilson EC, Garofalo R, Harris RD, Herrick A, Martinez M, Martinez J, Belzer M, Transgender Advisory Committee and the Adolescent Medicine Trials Network for HIV/AIDS Interventions . PMID: 19199022.
      View in: PubMed   Mentions: 84     Fields:    Translation:Humans
    38. Development of a directly observed therapy adherence intervention for adolescents with human immunodeficiency virus-1: application of focus group methodology to inform design, feasibility, and acceptability. J Adolesc Health. 2009 Feb; 44(2):124-132. Garvie PA, Lawford J, Flynn PM, Gaur AH, Belzer M, McSherry GD, Hu C, Pediatric AIDS Clinical Trials Group 1036A Study Team . PMID: 19167660.
      View in: PubMed   Mentions: 10     Fields:    Translation:HumansCells
    39. Long-term observation of adolescents initiating HAART therapy: three-year follow-up. AIDS Res Hum Retroviruses. 2007 Oct; 23(10):1208-14. Flynn PM, Rudy BJ, Lindsey JC, Douglas SD, Lathey J, Spector SA, Martinez J, Silio M, Belzer M, Friedman L, D'Angelo L, Smith E, Hodge J, Hughes MD, PACTG 381 Study Team . PMID: 17961106.
      View in: PubMed   Mentions: 29     Fields:    Translation:HumansCells
    40. An evaluation of service utilization among male to female transgender youth: qualitative study of a clinic-based sample. J LGBT Health Res. 2007; 3(2):49-61. Corliss HL, Belzer M, Forbes C, Wilson EC. PMID: 19835041.
      View in: PubMed   Mentions: 24     Fields:    Translation:Humans
    41. The use of cell phone reminder calls for assisting HIV-infected adolescents and young adults to adhere to highly active antiretroviral therapy: a pilot study. AIDS Patient Care STDS. 2006 Jun; 20(6):438-44. Puccio JA, Belzer M, Olson J, Martinez M, Salata C, Tucker D, Tanaka D. PMID: 16789857.
      View in: PubMed   Mentions: 65     Fields:    Translation:HumansCells
    42. Thymic volume, T-cell populations, and parameters of thymopoiesis in adolescent and adult survivors of HIV infection acquired in infancy. AIDS. 2006 Mar 21; 20(5):667-74. Lee JC, Boechat MI, Belzer M, Church JA, De Ville J, Nielsen K, Weston S, Geng Y, Dunaway T, Kitchen C, Krogstad PA. PMID: 16514296.
      View in: PubMed   Mentions: 15     Fields:    Translation:HumansCells
    43. Advance supply of emergency contraception: a randomized trial in adolescent mothers. J Pediatr Adolesc Gynecol. 2005 Oct; 18(5):347-54. Belzer M, Sanchez K, Olson J, Jacobs AM, Tucker D. PMID: 16202939.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    44. Longitudinal antiretroviral adherence among adolescents infected with human immunodeficiency virus. Arch Pediatr Adolesc Med. 2005 Aug; 159(8):764-70. Murphy DA, Belzer M, Durako SJ, Sarr M, Wilson CM, Muenz LR, Adolescent Medicine HIV/AIDS Research Network . PMID: 16061785.
      View in: PubMed   Mentions: 84     Fields:    Translation:HumansCells
    45. Radioiodine treatment for hyperthyroidism presenting primarily as psychiatric disease in three adolescent and young adult patients. J Pediatr Endocrinol Metab. 2004 Aug; 17(8):1121-3. Chulani VL, Belzer M, Broms TL. PMID: 15379425.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    46. Virologic and immunologic outcomes after 24 weeks in HIV type 1-infected adolescents receiving highly active antiretroviral therapy. J Infect Dis. 2004 Jul 15; 190(2):271-9. Flynn PM, Rudy BJ, Douglas SD, Lathey J, Spector SA, Martinez J, Silio M, Belzer M, Friedman L, D'Angelo L, McNamara J, Hodge J, Hughes MD, Lindsey JC, Pediatric AIDS Clinical Trial Group 381 Study Team . PMID: 15216461.
      View in: PubMed   Mentions: 49     Fields:    Translation:HumansCellsCTClinical Trials
    47. Assessment of thymic activity in human immunodeficiency virus-negative and -positive adolescents by real-time PCR quantitation of T-cell receptor rearrangement excision circles. Clin Diagn Lab Immunol. 2003 Mar; 10(2):323-8. Pham T, Belzer M, Church JA, Kitchen C, Wilson CM, Douglas SD, Geng Y, Silva M, Mitchell RM, Krogstad P. PMID: 12626462.
      View in: PubMed   Mentions: 8     Fields:    Translation:HumansCells
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