Our Global Team

Evelyn Castle, Executive Director and Co-Founder

Evelyn co-founded eHA in 2009.

As Executive Director, Evelyn provides executive management for the entire organization as well as programmatic and strategic leadership in the framework of eHA's business development and relationship building. She further heads eHA’s office in Sierra Leone and provides thought-leadership for eHA’s strategic capacity building.

Evelyn’s efforts were key to raising over $35m in funding over eHA's first four years. In 2014/2015, she led eHA to triple staff capacity in 12 months and oversaw the organizational development of eHA’s expansion from 1 country to 4 countries including staff organization, restructuring, and program development.

Evelyn has received a number of awards including an Honorable Mention at the UC Berkeley Big Ideas Competition for Technology in Interest of Society, and a first place award with the Rick Hooper Scholarship Foundation on her thesis looking at Women’s Human Rights and Access to Health Care in Muslim Societies of Northern Nigeria. Prior to founding eHA, Evelyn acted as Fellow of the Global Information Program at the University of California, Santa Cruz. Evelyn read Health Sciences at the University of California, Santa Cruz, and Walden University.

Growing up, Evelyn wanted to be a marine biologist and attended a shark camp. Her favorite food is spaghetti and she believes she is slowly turning into a crazy cat lady (2 babies so far). Her favorite place is the beach. Going to Nigeria was the first time she left the US.

Adam Thompson, Executive Director and Co-Founder

Adam co-founded eHA in 2009.

As Executive Director, Adam provides executive management for the entire organization. Adam leverages his expertise in global health and informatics to strategically innovate and lead eHA’s business development, research, private sector engagement, and health information technology initiatives. Furthermore, he heads eHA’s country offices in Nigeria and eHA’s Global Health Informatics Teams, which is inclusive of GIS, Software, and IT Systems.

During the 2014-2016 Ebola outbreak, Adam rapidly built emergency response teams consisting of 300+ staff across Sierra Leone, Liberia, and Guinea in under two months. Furthermore, with less than one week’s notice, he created  an Ebola response team in Lagos, Nigeria. Adam spearheaded the CDC’s Ebola vaccine trial program in Sierra Leone, which was conceived, designed, and operational in under two months. Over the course of just one year, the Vaccine Direct Delivery program that Adam developed in Nigeria decreased stock outs of vaccines and related commodities from the extremely high rate of over 90% to an impressive 10%.

Prior to founding eHA, Adam served as the Associate Director for Programs and Instruction for the Global Information Internship Program (GIIP) at the Center for Global, International and Regional Studies, University of California, Santa Cruz. He holds a BSc in Information Systems and Technology Management from the University of California, Santa Cruz.

Legend has it that Adam's entire wardrobe consists of only blue jeans and black v-neck t-shirts. Adam recently adopted two of Nigeria’s cutest puppies.

Anu Parvatiyar, Associate Director, Programs

Anu joined eHA in May 2014.

Anu oversees the programmatic strategy, evaluation, and pipeline management for programs across all countries eHA is active in. Together with her team, Anu identifies key areas of impact and streamlines key processes to drive more effective delivery in our program areas across the organization. In addition, she leads eHA’s polio program, working with several partners towards the complete eradication of polio in Africa. Anu is also responsible for our internal and external communications initiatives.

At eHА, she has managed a team of 300+ that contributed to a dramatic reduction in cases of wild poliovirus in Nigeria. She led the development of a dashboard that supports local and national decision-making and operationalizes data from multiple international partner agencies to support polio eradication. She has built & supported surveillance programs for collecting field-level data that detects and prevents larger outbreaks.

Anu has spent nearly a decade exploring how data drives decision making in healthcare. As an engineer and ethnographer in the medical device industry, she conceptualized, developed, and launched products with forecasted revenues of $10+ M. She also designed and managed ethnographic research studies for product development in key emerging markets, tapping into a $400M worldwide global urology market segment.
Prior to eHA, she spent six years in R&D at C. R. Bard & Transcardiac Therapeutics. Anu also worked as a research associate in the trauma center at Grady Memorial Hospital in Atlanta. She has significant work experience in the US, Asia, and Africa. Anu has served on the Board of Trustees of the Georgia Tech Alumni Association and the board for Georgia BIO’s Emerging Leaders Network. Anu has a Bachelors of Science in Biomedical Engineering from Georgia Tech, with a minor in Health & Development Economics.

Anu loves yoga, running, reading, and spending time with her dog Sawra. She once drove a farm tractor into a mailbox (the mailbox deserved it). On Wednesdays, she wears pink.


David Bizzaro, Chief Financial Officer 

David joined eHA in September 2015.

As CFO of eHA, David is responsible for providing strategic financial guidance to the leadership team and overseeing the day-to-day finance operations of eHA globally.

At eHA, David built a strong finance organization at the country level and created centralized oversight functions including FP&A, internal audits, and controllership. David and the leadership team have introduced enhanced financial controls and harmonized policies and operating procedures across all country entities. He has also led the successful completion of eHA’s first annual audit Uniform Grant Guidance (UGG) report. On the systems side, he has led the successful implementation of the Sage ERP system, providing enhanced reporting capabilities for eHA. David’s continuous focus on people, processes and systems have helped strengthen eHA’s overall finance capabilities.

David has over 20 years of experience driving business process improvement and operational excellence across complex multicultural landscapes. David has completed overseas assignments in Spain, the Netherlands, Hong Kong and the Philippines and worked throughout Latin America, and has deep hands-on operational and M&A experience. As the SVP of International Finance for a $500 million publicly traded BPO company, David introduced harmonized financial controls and procedures across 10 country entities in Latin America, Asia and Europe. Earlier in his career, David served in a variety of financial leadership roles of increasing responsibility with multi-billion dollar technology companies including NCR, Sprint International AVAYA and CIENA. David is a Certified Management Accountant and holds a BA in Economics and Spanish from Beloit College in Wisconsin. He earned his International MBA from the University of South Carolina.

David is fluent in English, Spanish and French and he has a working knowledge of Portuguese and Mandarin Chinese. He enjoys scuba diving and motorcycling and he is an accomplished guitarist.

Dave Henry, Senior Advisor, Global Health Informatics

Dave joined eHA in January 2016.

Dave acts as a strategic advisor to eHA’s leadership team. He consults on information system architecture, incubates new software solutions and develops business opportunities.

Dave has helped eHA to understand the importance of information as an asset. He has initiated and launched a registry for tracking data sources, taught data management skills at the eHA Academy and developed a partnership to expand the use of electronic medical records in developing world hospitals and health clinics.
Dave has a track-record of helping customers achieve success with new and unproven technology. He has recommended and implemented innovative solutions in the healthcare, retail, financial services, telecommunications and government sectors, leading to case studies and public references.

Dave’s previous experience includes an early-stage executive position at Pentaho (Hitachi Data Systems) where he created an international partner channel and developed the professional services organization. He also played leadership roles in companies such as TEMTEC (IBM) and Sagent (Pitney-Bowes), assisting those organizations with business development, product marketing and product management Dave holds an MSc. in Information Science from the University of North Texas and a B.A. in Cultural Anthropology from the University of Texas at Dallas.

Dave’s hobbies include travelling, sailing and adventure motorcycling. The coolest place he’s been is the Fouta Djallon highlands of Guinea, where eHA conducted an integrated health delivery systems pilot.

Catherine Mitchell, Associate Director, Finance

Catherine joined eHA in March 2015.

Catherine oversees the day-to-day operations of the Global Finance & Accounting Department. By working with eHA’s local finance and accounting teams, she creates tools and analyses to help eHA understand its financial health and provide transparent donor reporting.

Catherine joined eHA Liberia during the Ebola response. She helped to organize and improve the finance and accounting functions of the Liberia office and facilitate donor reporting with the CDC Foundation. Catherine later transitioned to a global role where she continues to develop policies and procedures to ease the administrative burden of carrying out eHA projects.

Catherine is devoted to her family and her community. She is an active volunteer with youth sports organizations, military spouse groups, and educational outreach. She has been a Board Member for the American International School of Monrovia and was the finance and operations advisor for a non-profit school for girls in Liberia. 
Catherine’s career started in commercial and investment banking, and she worked for almost ten years in Atlanta and New York. After marrying her military husband and moving to Africa with him, her career shifted to emerging markets finance and later to non-profit finance and accounting. Catherine holds an MBA in Finance from Goizueta Business School at Emory University. Her undergraduate degree is in Finance and Risk Management from the University of Florida. (Go Gators!)

Catherine is happily married with two bright and energetic children. Team Mitchell has spent over ten years living in three African countries and Italy, plus traveling to countless others in Africa and Europe. Catherine especially loves to study foreign languages and is always eager to speak them at any time.  

Johanna Roegele, Managing Director, Germany Office

Johanna joined eHA in June 2015. 

Johanna manages the eHA Germany office and identifies opportunities to position eHA as a strong partner for EU-based institutions and organizations. She also supports business development across the organization. By working with all eHA country offices and divisions, Johanna implements strategic initiatives to strengthen core processes in the areas of capacity building, quality assurance, and business operations.  

Johanna has helped eHA build up and strengthen its HR division across offices. With crucial input from various teams within the organization, she oversaw and coordinated the development and implementation of key policies and procedures. Most recently, Johanna oversaw the growth of eHA into the German and EU market, including staff organization and restructuring of resources.

Johanna has managed the roll-out of a national graduate students tracking system across technical universities and institutes of technology in Ethiopia. She was part of a research team that analyzed and published on user behavior towards open educational resources with a positive impact on policymaking across OECD member states. Johanna supported the international scale-up of a German grassroots organization that has placed close to 1000 refugees in flat shares across Europe.

Prior to joining eHA, Johanna worked as Advisor for Higher Education and Technical and Vocational Training at GIZ in Addis Ababa and on the topic of sustainability standards in global supply chains at the German Federal Ministry for Economic Cooperation and Development (BMZ). She was a consultant for the African constituencies of the World Bank’s Global Partnership for Education before joining a research team at OECD headquarters in Paris to develop a publication on the educational impact of open content policies. Johanna holds an M.A. in Area Studies and International Affairs from FIU and Bard College and a B.A. in Area Studies and History from Humboldt Universität Berlin.

Johanna was seriously born on April Fool’s Day. She wrote a book when she was a kid about a world-class gymnast who broke her foot, but no one wanted to publish it. The most memorable place she has been is Lalibela to celebrate Ethiopian Christmas (Genna). 

Our Country Leadership

Atef Fawaz, Deputy Country Director, Operations, Nigeria 

Atef joined eHA in November 2012.

Working together with all program managers and directing them, Atef oversees all operations at eHA Nigeria. He also leads the emergency response efforts as well as the ICT team and handles relations with state and federal governments in Nigeria.

Atef was leading the setting up of eight Polio Emergency Operations Centers (EOCs) in Nigeria, funded by the Gates Foundation. The first two EOCs were built within four weeks. He further led the setting up the Ebola EOC in Lagos that was completed within two weeks. Atef was also reponsible for building eHA’s Nigerian Operations Department.

Prior to joining eHA, Atef worked as Operations Manager and COO at Electronic Connections Ltd. in Kano. 
Atef holds a BSc in Computer Communications Engineering from the Lebanese International University, Beirut.

Atef is crazy about dogs (currently having 5), and a big fan of Juventus FC.                                

Aji Kalau, Country Lead Liberia

Aji joined eHA in June 2013.

In his role as Country Lead in Liberia, Aji is responsible for managing eHA’s programs and projects in Liberia, the office’s financial and fiscal administration, as well as effectively leading eHA’s employees in the country.

Aji was awarded Emergency Operations Center (EOC) Staff of the Year for 2014 at eHA while serving as EOC Manager for the Borno EOC, leading to his deployment to Liberia as Project Manager in 2015 and then Program Manager in 2016.

Prior to joining eHA, Aji worked as North East Regional Treasurer and Branch Manager at Intercontinental Bank Plc. He also held other roles in the banking sector, working for Access Bank Plc and First Bank Plc in Nigeria.
Aji has a Bachelor of Technology (B. Tech) degree in Estate Management from the Federal University of Technology (ATBU) in Bauchi, Nigeria and Diploma in Information Technology Applications from the Hands On Institute of Information Technology in Lagos. Aji is currently studying for a Masters in International Management at the University of Liverpool (UOL).

Aji likes to relax by watching movies, catching up with his family and cannot stand peanut butter.

Mohsin Saeed Khan, Deputy Country Director, Programs, Nigeria
Dayo Spencer-Walters, Deputy Country Director, Sierra Leone

Our Board of Directors

Andrew Karlyn
My T. Le
Jamie McPike