Team Home

Welcome to the Chan research and Rhode Island STD clinic team! Our research is focused on HIV and sexually transmitted disease epidemiology with an emphasis on pre-exposure prophylaxis (PrEP) in gay, bisexual, and other men who have sex with men. We also founded Rhode Island’s only safety-net STD clinic open on Wednesday, Thursday and Friday from 12:30PM to 3:30PM. Please explore our website to learn more about ongoing projects, grants, and our team!

Implementation Science

Implementation science is the study of methods to promote integration of research findings and evidence into healthcare policy and practice. Our clinic was among the first to implement a “real-world” pre-exposure prophylaxis (PrEP) program in the United States. We also started the Rhode Island STD Clinic, which routinely works to implement new and cutting-edge interventions to improve public health and clinical care related to HIV and STD diagnosis and management.

HIV Prevention

Our HIV prevention research includes promoting HIV testing and pre-exposure prophylaxis (PrEP). We study factors associated with uptake, retention in care, and adherence of high-risk populations in PrEP care and develop and test interventions to improve PrEP outcomes. We conduct this work in collaboration with PrEP implementation sites in Jackson, Mississippi; St. Louis, Missouri; and New Haven, Connecticut.

Social and Behavioral Sciences

A focus of our research is understanding behaviors related to HIV and STD transmission. We study and report on behaviors among patients in the STD Clinic and PrEP program, including sexual behaviors and substance, and conduct sexual network research. We work on addressing disparities in healthcare, including specifically among lesbian, gay, bisexual, transgender, and queer (LGBTQ) populations.

Public Health

Much of our work has a public health focus with a direct impact on the community. Our STD Clinic offers accessible HIV/STD testing and treatment and is a major referral source for the on-site PrEP program. The clinic serves as a safety-net resource for the entire state and as a site for numerous sexual health initiatives. We are also working to improve outcomes for partner notification services and performing testing for drug-resistant gonorrhea.


Philip A Chan, MD, MS
1125 North Main St
Providence, RI 02906

Phone: 401-793-4859
Fax: 401-793-4709