2019 – 2020 Executive Committee



Christina Mikosz, MD, MPH—EIS ‘11 (2017-2020)

Christina currently serves as a Medical Officer in the Division of Unintentional Injury Prevention, as part of the CDC team combating the nation’s opioid overdose epidemic. She completed EIS as a field officer assigned to the Los Angeles County Department of Public Health and then worked for several years post-EIS at the Alameda County Public Health Department in the Bay Area prior to returning to CDC. Christina considers EIS to be a defining experience in her career and she is happy to give back to the program by serving on the EISAA Executive Committee, including serving as the Alumni Association Secretary/Treasurer during 2015-2017 and serving as President-elect during 2017-2018.


Benowitz, Isaac full3

Isaac Benowitz, MD—EIS ‘14 (2018-2021)

Isaac serves as a Medical Officer in CDC’s Division of Healthcare Quality Promotion where he investigates outbreaks of infectious diseases in healthcare settings. He joined CDC in 2014 as an EIS officer at the New York City Department of Health and Mental Hygiene where he investigated Legionnaires’ disease outbreaks and responded to Ebola in NYC and West Africa. He credits EIS with giving him incredible opportunities to learn on the front lines of public health and to impact people’s lives. He is excited to work with the EISAA to help support the EIS program and recent EIS graduates.


L. Hannah Gould, PhD, MS—EIS ‘05 (2017-2020)

Hannah is Assistant Commissioner for the Bureau of Epidemiology Services with the New York City Department of Health and Mental Hygiene where she manages  a group dedicated to improving the health of New Yorkers through accurate and timely data collection and monitoring, rigorous analysis, and effective data communication. From 2005-2015, she worked at CDC, first as an EISO in Fort Collins and then in the Division of Foodborne, Waterborne, and Environmental Diseases in NCEZID. She credits EIS for helping her transition from basic laboratory research to public health, and is excited to bring her experiences working at headquarters and in the field to EISAA.

At-large representatives

Hammad Ali, MBBS, MPH, PhD—EIS ‘15 (2019-2022)

Hammad joined the CDC as an EIS officer in 2015 in the Division of Global HIV and TB. During EIS he had the opportunity to work on a number of infectious diseases including HIV, Ebola, Typhoid and TB. Hammad stayed with the division after completing EIS and is currently working as a medical epidemiologist in the Epidemiology and Surveillance Branch – working with various CDC country offices across the globe. Hammad thrives in bringing people together and wants to utilize the diversity of our alumni to improve EISAA through more collaboration.

Gus Birkhead, MD, MPH—EIS ‘85 (2019-2022)

Gus is currently a professor of epidemiology at the University at Albany School of Public Health.  He spent most of his public health career since EIS at the New York State Department of Health, from which he retired in 2015 as deputy commissioner for public health.  He has been active in CSTE and ASTHO, and co-lead the development of the CDC/CSTE Applied Epidemiology Competencies.  He is honored to be serving on the EISAA Executive Committee, and hopes he can ‘pay back’ to EIS by bringing to the table his experience in public health education and in epidemiology practice at the state health department level.

Kimball, Ann Marie

Ann Marie Kimball, MD, MPH, FACPM—EIS ‘77 (2018-2021)

Bio information coming soon.

Class of 2017 Representative

Robert McDonald, MD, MPH – EIS ‘17

Bobby is currently the EIS assignee at the New York State Department of Health. During his time as an EISO, his investigations have included the spread of Candida auris in healthcare facilities the emergence of blastomycosis in Upstate New York, various measles outbreaks, and increases in bacterial and fungal infections among people who inject drugs in Western New York State. He will be moving to Atlanta to take a position with the Division of Sexually Transmitted Disease Prevention as part of the new Future Leaders in Infections and Global Health Threats (FLIGHT) Program.

Ex-Officio Members

Immediate Past President

Tina Tan, MD, MPH—EIS ‘00 (2016-2019)

Tina serves as a State Epidemiologist/Assistant Commissioner for the New Jersey Department of Health’s Division of Epidemiology, Environmental and Occupational Health, where she oversees communicable disease, environmental, and occupational health surveillance, investigation, and response activities as well as the state’s SEER cancer registry. She’s excited to be starting her second year on the Executive Committee and looks forward to continuing to represent the voice of alumni currently based in the field. As a seasoned EIS supervisor, Tina has kept her finger on the pulse of the EIS Program and looks forward to continuing to support it as it evolves and adapts to new public health demands.

EIS Program Representative

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Eric Pevzner, PhD, MPH—EIS ‘05

Eric currently serves as Chief of the EIS Program and Epidemiology Workforce Branch. Eric began working with CDC in 1996 while earning his MPH at the Rollins School of Public Health at Emory University. He has had several landmark opportunities including the opportunity to contribute to establishing a youth tobacco surveillance system to provide national and state level data to support youth tobacco prevention and control activities. He also contributed to CDC’s emergency response to H1N1 in Mexico and Ebola in West Africa. Since 2005, he has worked to conduct research and provide technical assistance to implement and evaluate policies and interventions in Africa and Asia to improve the diagnosis, treatment, and prevention of TB, HIV, and TB/HIV. He enjoys working with the EIS Alumni Association to identify new ways to link alumni with prospective applicants who want to know more about what EIS Officers actually do and what roles they play in public health upon completion of the fellowship.

CDC Foundation Representative


Diana Robelotto Scalera

Diana serves as the CDC Foundation’s Director of Alumni Affairs and operates as the EIS Alumni Association’s primary liaison with the Foundation. She joined the CDC Foundation in 2014, bringing with her 11 years of experience at the American Cancer Society. She played a large role in helping the EISAA secure grant funding from the de Beaumont Foundation, which has enabled the Association to expand its roles in EIS Program recruitment and alumni networking.  She helps maintain a database of EIS Alumni and is always ready to help put Alumni in touch with recruitment or meet-and-greet opportunities in their geographic areas.

Past EISAA Executive Committee roster archive:

2018-2019 EISAA Executive Committee
2017-2018 EISAA Executive Committee
2016-2017 EISAA Executive Committee
2015-2016 EISAA Executive Committee