Thomas J. Stopka, PhD, MHS


Assistant Professor of Public Health and Community Medicine
CTSI Secondary Appointment

Tufts University School of Medicine
136 Harrison Avenue
Boston, MA 02111

Phone: 617.636.2110
Fax: 617.636.4017

PhD, Epidemiology, University of California, Davis
MHS, International Health, Johns Hopkins Bloomberg School of Public Health

Teaching Areas:

Research methods in public health; GIS; spatial epidemiology; epidemiology

Research Focus:
Infectious disease (HIV, HCV, STIs); spatial epidemiology; substance use and misuse; opioid overdose; health disparities

Selected Publications:


1) Singer M, Stopka T, Siano C, Springer K, Barton G, Khoshnood K, Gorry de Puga A, and Heimer R.  The Social Geography of AIDS and Hepatitis Risk: Qualitative Approaches for Assessing Local Differences in Sterile-Syringe Access Among Injection Drug Users.  Am J Public Health. 2000;90:1049-1056.

2) Stopka TJ, Singer M, Teng W, Horton J, Compton W. Pharmacy Access to Over-the-Counter (OTC) Syringes in Connecticut: Implications for HIV and Hepatitis Prevention among Injection Drug Users.  AIDS & Public Policy, 2002:17(4): 115-126.

3) Stopka TJ, Segura-Pérez S, Chapman D, Damio G, Pérez-Escamilla R. An innovative community-based approach to encourage breastfeeding among Hispanic/Latino women.  J Am Dietetic Association, June 2002:102(8):766-767.

4) Nicolaysen A, Stopka T, Singer M, Santelices C. The Use of Geographic Information Systems (GIS) in Community-Based Health Research. Practicing Anthropology, Summer 2003:25(3):16-18.

5) Stopka TJ, Singer M, Santelices C, Eiserman J.  Public Health Interventionists, Penny Capitalists, or Sources of Risk?  Assessing Street Syringe Sellers in Hartford, Connecticut.  Substance Use & Misuse, 2003:38(9):1339-1370.

6) Stopka TJ, Springer K, Khoshnood K, Shaw S, Singer M. Writing About Risk: Use of Daily Diaries in Understanding Drug-User Risk Behaviors. AIDS and Behavior 2004:8(1):73-85.

7) Singer M, Stopka T, Shaw S, Bennet L, Buchanan D, Teng W, Khooshnood K, Heimer R. Lessons from the Field: From Research to Application in the Fight Against AIDS among Injection Drug Users in Three New England Cities. Human Organization 2005 64(2):179-191.

8) Stopka TJ.  Editor’s Introduction to Special Issue on Syringe Access and Secondary Syringe Exchange: International Perspectives and Future Directions. Substance Use and Misuse 2006:41(1):1-6.

9) Stopka TJ, Marshall C, Bluthenthal RN, Webb DS, Truax SR. HCV and HIV Counseling and Testing Integration in California: An Innovative Approach to Increase HIV Counseling and Testing Rates among IDUs. Public Health Reports 2007: 122, Supplement 2: 68-73. 

10) Stopka TJ, Garfein R, Ross A, Truax SR. Increasing Syringe Access and HIV Prevention in California: Findings from a Survey of Local Health Jurisdiction Key Personnel.  J Urban Health. 2007:84(1):116-25.

11) Cooper E, Stopka TJ, Riley ED, Garfein RS, Bluthenthal R. Uptake of over-the-counter pharmacy sales in Los Angeles and San Francisco:  Factors associated with participation in SB1159.  J Urban Health. 2010:87(4):543-552.

12) Stopka TJ, Lutnick A, Wenger LD, DeRiemer K, Geraghty EM and Kral AH. Demographic, Risk, and Spatial Factors Associated With Over-the-Counter Syringe Purchase Among Injection Drug Users. Am J Epidemiology. 2012:176(1):14-23. PMID: 22562660.

13) Stopka TJ, Geraghty EM, Azari R, Gold E, and DeRiemer K. Factors Associated with Presence of Pharmacies and Pharmacies That Sell Over-The-Counter Syringes in Los Angeles County.  J Urban Health. 2013 Dec;90(6):1079-90. PMID: 23567984.

14) Stopka TJ, Krawczyk C, Gradziel P, Geraghty EM. Use of Spatial Epidemiology and Hot Spot Analysis to Target Women Eligible for Prenatal Women, Infants, and Children Services. Am J Public Health. 2014 Feb;104 Suppl 1:S183-9. PMID: 24354821.

15) Stopka TJ, Geraghty EM, Azari R, Gold E, and DeRiemer K. Is Crime Associated with Over-the-Counter Pharmacy Syringe Sales?  Findings from Los Angeles, California. Int J Drug Policy. 2014. Mar;25(2):244-250. PMID: 24495711.

16) Meyers DJ, Hood ME, Stopka TJ. HIV and Hepatitis C Mortality in Massachusetts, 2002-2011: Spatial Cluster and Trend Analysis of HIV and HCV Using Multiple Cause of Death. PLoS One. 2014. 9(12):3114822. Doi:10.1371/jounal.pone.0114822.

17) Escobar E, Ryan Durgham R, Damman O, and TJ Stopka. Agent-based computational model of the prevalence of gonococcal infections after the implementation of HIV pre-exposure prophylaxis guidelines. Online Journal of Public Health Informatics. 2015 Dec; 7(3):e224.

18) Nunn A, Towey C, Chan PA, Parker S, Nichols E, Oleskey P, Yolken A, Harvey J, Banerjee G, Stopka T, Trooskin S. Routine HIV Screening in an Urban Community Health Center: Results from a Geographically Focused Implementation Science Program. Public Health Reports. 2016 Jan-Feb;131 Suppl 1:30-40.

19) Wurcel AG, MD MS, Anderson J, Chui KH, Skinner S, Knox TA, Snydman DR, and Stopka TJ. Increasing Infectious Endocarditis Admissions among Young People Who Inject Drugs. Open Forum Infect Dis. Sept 1 2016. PMID: 27800528; PMCID: PMC5084714; DOI: 10.1093/ofid/ofw157.

20) Nunn A, Brinkley-Rubinstein L, Rose J, Mayer K, Stopka T, Towey C, Harvey J, Santamaria K, Sabatino K, Trooskin S, Chan PA. Latent Class Analysis of Acceptability and Willingness to Pay for Self-HIV testing in a United States Urban Neighborhood with High Rates of HIV Infection. J Int’l AIDS Society. 2017, 20:2190. DOI: 10.7448/IAS.20.1.21290.

21) Stopka TJ, Donahue A, Hutcheson M, Green T. Nonprescription Naloxone and Syringe Sales in the Midst of Hepatitis C Virus and Opioid Overdose Epidemics: Massachusetts, 2015. J Am Pharm Assoc. 2017. DOI:10.1016/j.japh.2016.12.077. PMID: 28189540.

22) Stopka TJ, Goulart M, Meyers DJ, Hutcheson M, Barton K, Onofrey S, Church D, MPH3, Chui K. Identifying and Characterizing Hepatitis C Virus Hotspots in Massachusetts: A Spatial Epidemiological and Statistical Modeling Approach. BMC Infect Dis. 2017 Apr 20; 17(1):294 . doi: 10.1186/s12879-017-2400-2. PMID: 28427355.

23) Stopka TJ, Hutcheson M, Donahue A. Access to healthcare insurance and healthcare services among syringe exchange program clients in Massachusetts: Qualitative findings from health navigators with the iDU (“I do”) Care Collaborative. Harm Reduct J. 2017 May 18;14(1):26. doi: 10.1186/s12954-017-0151-4. PMID: 28521814.