Asa Radix, MD, PhD, MPH

  • Associate Professor of Clinical Epidemiology
Profile Headshot


Dr. Radix is an infectious disease/HIV specialist at the Callen-Lorde Community Health Center in NYC and Associate Professor of Clinical Epidemiology in the Department of Epidemiology. They also serve as the Director of the Online MS in Epidemiology program at the Mailman School of Public Health. Dr. Radix is a recognized expert in transgender medicine and has contributed to multiple national and international guidelines for the care of transgender and gender diverse people. Dr. Radix serves on several boards including the New York State AIDS Institute Medical Care Criteria Committee, the American Sexual Health Association (Chair) and the HHS Panel on Antiretroviral Guidelines for Adults and Adolescents and was co-chair of the World Professional Association of Transgender Health (WPATH) Standards of Care 8 working group. Their research focuses on STI/HIV risk, HIV prevention and health outcomes in transgender populations.

Academic Appointments

  • Associate Professor of Clinical Epidemiology

Credentials & Experience

Education & Training

  • PhD, Columbia University
  • M Phil, Cambridge University
  • MPH, University of Connecticut
  • MD, St. George's University
  • Other, DTM&H, University of London

Committees, Societies, Councils

Board member, American Sexual Health Association
Board member, World Professional Association of Transgender Health

Editorial Boards

Transgender Health
International Journal of Transgender Health

Honors & Awards

City & State’s 2020 Health Power 100, 2020
Gay City News IMPACT Award, 2020
WPATH Gold Medal, 2022
New York State, Dr. Linda Laubenstein Annual HIV Clinical Excellence Award, 2022


Research Interests

  • Community Health
  • Infectious Diseases
  • LGBT health
  • Public Health

Selected Publications

Wirtz AL, Poteat T, Radix A, Althoff KN, Cannon CM, Wawrzyniak AJ, Cooney E, Mayer KH, Beyrer C, Rodriguez AE, Reisner SL. American Cohort to Study HIV Acquisition Among Transgender Women in High-Risk Areas (The LITE Study): Protocol for a Multisite Prospective Cohort Study in the Eastern and Southern United States. American Cohort To Study HIV Acquisition Among Transgender Women (LITE). JMIR Res Protoc. 2019 Oct 3;8(10):e14704. doi: 10.2196/14704. PMID: 31584005

Malina S, Warbelow S, Radix AE. Two Steps Back - Rescinding Transgender Health Protections in Risky Times. N Engl J Med. 2020 Nov 19;383(21):e116. doi: 10.1056/NEJMp2024745. Epub 2020 Jul 31. PMID: 33210859

Dimant OE, Cook TE, Greene RE, Radix AE. Experiences of Transgender and Gender Nonbinary Medical Students and Physicians. Transgend Health. 2019 Sep 23;4(1):209-216. doi: 10.1089/trgh.2019.0021. eCollection 2019. PMID: 31552292

Reisner SL, Deutsch MB, Mayer KH, Potter J, Gonzalez A, Keuroghlian AS, Hughto JM, Campbell J, Asquith A, Pardee DJ, Pletta DR, Radix A. Longitudinal Cohort Study of Gender Affirmation and HIV-Related Health in Transgender and Gender Diverse Adults: The LEGACY Project Protocol. JMIR Res Protoc. 2021 Mar 1;10(3):e24198. doi: 10.2196/24198. PMID: 33646126

Radix AE. Addressing Needs of Transgender Patients: The Role of Family Physicians. J Am Board Fam Med. 2020 Mar-Apr;33(2):314-321. doi: 10.3122/jabfm.2020.02.180228. PMID: 32179615

Radix AE, Harris AB, Goldstein ZG. How can we improve uptake of oral HIV pre-exposure prophylaxis for transgender individuals? Expert Rev Anti Infect Ther. 2020 Sep;18(9):835-838. doi: 10.1080/14787210.2020.1759418. Epub 2020 May 5. PMID: 32316773

Radix A. Hormone Therapy for Transgender Adults. Urol Clin North Am. 2019 Nov;46(4):467-473. doi: 10.1016/j.ucl.2019.07.001. Epub 2019 Aug 19. PMID: 31582021

Marzinke MA, Radix A. Healthcare Is a Spectrum: The Utilization of Population-Specific Reference Intervals Is Essential in the Standard of Care for Transgender Patients. J Appl Lab Med. 2021 Jan 12;6(1):7-10. doi: 10.1093/jalm/jfaa206. PMID: 33438733

Duncan DT, Schneider JA, Radix A, Harry-Hernandez S, Callander D. Sleep health among transgender women of color in New York City: Preliminary analyses of interim baseline data from the TURNNT study cohort. Sleep Health. 2021 Feb 19:S2352-7218(21)00005-X. doi: 10.1016/j.sleh.2021.01.005. Online ahead of print. PMID: 33619011

Dubin S, Cook TE, Radix A, Greene RE. Sexual Orientation Demographic Data in a Clinical Cohort of Transgender Patients. Appl Clin Inform. 2021 Mar;12(2):222-228. doi: 10.1055/s-0041-1725184. Epub 2021 Mar 17. PMID: 33730758