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DHAP’s Senior Staff

Image of  Kenneth Castro

Kenneth Castro
Title: Acting Director
Began work in DHAP: 1983–1992
Education: MD, State University of New York at Stony Brook
Role: Guides the Division in providing national leadership and support for HIV epidemiologic research and surveillance of the behaviors and determinants of HIV transmission and disease progression, and for prevention research and the development, implementation, and evaluation of evidence-based HIV prevention programs that serve people affected by or at risk for HIV infection.

Image of  Bernard M. Branson

Bernard M. Branson
Title: Associate Director for Laboratory Diagnostics, Office of the Director
Began work in DHAP: 1990
Education: MD, Northwestern University.
Role: Advises the Office of the Director on CDC’s policies related to HIV testing and HIV prevention intervention studies.

Image of  Chris Cagle

Chris Cagle
Title: Associate Director for Policy, Planning, and Communication
Began work in DHAP: 2002
Education: PhD, MPA, Georgia State University
Role: Provides internal policy and planning guidance and support; identifies and promotes potential legislation, policies, and plans supportive of HIV prevention programs and practices; and publishes guidelines and recommendations to support evidence-based programs, practices, and services.

Image of  Janet Cleveland

Janet C. Cleveland
Title: Deputy Director for Prevention Programs
Began work in DHAP: 1994
Education: MS, University of Southern Mississippi
Role: Guides the work of the Prevention Programs Branch and the Capacity Building Branch.

Image of  Amy Lansky

Amy Lansky
Title: Deputy Director for Surveillance, Epidemiology, and Laboratory Science
Began work in DHAP: 1996
Education: PhD, MPH, University of North Carolina at Chapel Hill
Role: Guides the work of the HIV Incidence and Case Surveillance Branch, Behavioral and Clinical Surveillance Branch, Epidemiology Branch, and Laboratory Branch.

Image of  Theresa Larkin

Theresa Larkin
Title: Deputy Director for Public Health Operations
Began work in DHAP: 2009
Education: MBA, Boston University
Role: Ensures all public health operations activities related to intramural and extramural projects and activities of the Division are accomplished

Image of  Donna Hubbard McCree

Donna Hubbard McCree
Title: Associate Director for Health Equity
Began work in DHAP: 2005
Education: PhD, MPH, The Johns Hopkins University School of Hygiene and Public Health Role: Coordinates and monitor the Division’s activities related to reducing health inequities among populations most disproportionately affected by HIV and AIDS, including, but not limited to, African Americans, Latinos, gay and bisexual men, transgender people, and injection drug users.

Image of  David Purcell

David Purcell
Title: Deputy Director for Behavioral and Social Science
Began work in DHAP: 1996
Education: JD, University of Michigan Law School; PhD, Emory University
Role: Guides the work of the Prevention Research Branch, the Program Evaluation Branch, the Prevention Communication Branch, and the Quantitative Sciences and Data Management Branch

Image of  Gail Scogin

Gail Scogin
Title:Associate Director of Data Management (Acting)
Began work in DHAP: 2011
Education:MS, Columbus State Univ., BISyE, Georgia Institute of Technology
Role:Principal public health informatics and business advisor to the DHAP Director, Deputy Directors, and other senior DHAP staff on the development, support, application, standardization, and integration of public health information and surveillance systems and on the application of information technology to public health programs within the division.

Image of  Linda Valleroy

Linda Valleroy
Title: Associate Director for Science
Began work in DHAP: 2007
Education: PhD, MS, University of Pennsylvania
Role: Promotes excellence in science by ensuring the scientific accuracy of major written communications concerning the Division’s work.

Image of  Richard Wolitski

Richard Wolitski
Title: Senior Advisor, Office of the Director
Began work in DHAP: 1995
Education: PhD, Georgia State University; MA, Long Beach State University
Role:Provides senior leadership on the use of strategic indicator data to improve the effectiveness, efficiency, and impact of HIV prevention activities.

Image of  Pascale Wortley

Pascale Wortley
Title: Senior Advisor, Office of the Director
Began work in DHAP: 2012
Education: MD, MPH, University of Washington
Role: Advises the Office of the Director on health care reform and prevention through health care.

Image of Angel Luis Ortiz-Ricard

Angel Luis Ortiz-Ricard
Title: Associate Deputy Director for Prevention Programs
Began work in DHAP: 2001
Education: JD, InterAmerican University
Role: Provides advice and assistance in overcoming barriers to program delivery and application because of economic, cultural, or political controversies; makes recommendations for key executive-level management decisions to the Deputy Director for Prevention Programs and other senior DHAP staff.

Image of  Nick DeLuca

Nick DeLuca
Title: Chief, Prevention Communication Branch
Began work in DHAP: 2011
Education: PhD, University of Alabama at Birmingham
Role: Leads the branch in implementing science- and evidence-based HIV/AIDS communication programs and approaches; systematically translating and disseminating science-based messages through multiple communication channels; and managing internal communication efforts.

Image of  Timothy Green

Timothy Green
Title: Chief, Quantitative Sciences and Data Management Branch
Began work in DHAP: 2003
Education: PhD, Stanford University; MA, Johns Hopkins University
Role: Leads the branch in providing expertise and technical collaboration for the application of statistics, economics, operations research, geography, other quantitative sciences, and data management to prevent HIV infection and reduce the incidence of HIV-related illness and death.

Image of Irene Hall

Irene Hall
Title: Chief, HIV Incidence and Case Surveillance Branch
Began work in DHAP: 2002
Education: PhD, MPH, Yale University
Role: Leads the branch in conducting a national program of surveillance and research to monitor and characterize the HIV epidemic, including its determinants as well as epidemiological dynamics such as prevalence, incidence, and antiretroviral resistance, to guide public health action at the federal, state, and local levels.

Image of Michael Hendry

Michael Hendry
Title: Chief, Laboratory Branch
Began work in DHAP: 2008
Education: DSc, MS, Harvard School of Public Health
Role: Leads the branch in supporting DHAP’s goals in HIV prevention as they pertain to clinical studies, viral transmission, diagnosis and incidence, intervention research with microbicides, vaccines, and chemoprophylaxis; and in investigating other human and zoonotic retroviruses.

Image of Linda Koenig

Linda Koenig
Title: Chief, Prevention Research Branch
Began work in DHAP: 1997
Education: PhD, MS, Northwestern University
Role: Leads the branch in conducting behavioral and operational research to develop, test, synthesize, and package sustainable interventions to prevent HIV transmission.

Image of Wendy Lyon

Wendy Lyon
Title: Chief, Prevention Programs Branch
Began work in DHAP:1995
Education:BSPH, University of North Carolina at Chapel Hill
Role: Leads the branch in working with public and private partners to strengthen science-based HIV prevention efforts in states (health departments) and local communities (community-based organizations).

Image of Joseph (Buzz) Prejean

Joseph (Buzz) Prejean
Title: Chief, Behavioral and Clinical Surveillance Branch
Began work in DHAP: 2002
Education: PhD, Louisiana State University
Role: Leads the branch in guiding HIV prevention and care by identifying, monitoring, and reporting the drivers of the HIV epidemic.

Image of Taraz Samandari

Taraz Samandari
Title: Chief, Epidemiology Branch
Began work in DHAP: 2011
Education: MD, PhD, University of Colorado
Role: Leads the branch in conducting biomedical and behavioral epidemiologic research to reduce HIV infection and disease progression.

Image of Dale Stratford

Dale Stratford
Title: Chief, Program Evaluation Branch
Began work in DHAP: 1999
Education: PhD, University of Florida
Role: Leads the branch in supporting the National HIV/AIDS Strategy and the DHAP Strategic Plan by providing program monitoring and evaluation for all CDC-funded HIV prevention programs conducted by health departments and community-based organizations.

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