Founder & Staff

Meet the Timmy Team – a group working in Indianapolis, Seattle, and in Timmy’s international program sites to expand access to
healthcare and empower the next generation of global health leaders.

Dr. Chuck

Dr. Chuck Dietzen, Founder and President

Dr. Chuck boasts a diverse career as pediatric physical medicine and rehabilitation specialist, international medicine enthusiast, entrepreneur, professor, and athlete. Growing up in Kokomo, Indiana, over 150 foster children came through his family’s home. His special gift of working with children became apparent to his mother, who encouraged him to become a pediatrician. In 1996 and 1997, he traveled to India on orthopedic missions working alongside Mother Teresa. Inspired to make a deeper commitment to the medically underserved, Dr. Chuck founded Timmy Global Health (formerly the Timmy Foundation) in 1997. His work with Timmy has taken him to Ecuador, Guatemala, Nigeria, Haiti, and the Dominican Republic. He has also traveled to Albania, Cuba, Kenya, Honduras, Bolivia, El Salvador, the Ukraine, and Brazil. He earned his B.S. in Agriculture from Purdue University and his M.D. from Indiana University. He received his training as a pediatric physical medicine and rehabilitation specialist at the University of Alabama Birmingham. He currently serves as the Medical Director for In-Patient Rehabilitation at Riley Hospital for Children at IU Health.

Nancy Wright, Executive Director

Nancy entered the healthcare field after receiving her Bachelor of Science degree from California Polytechnic University and has dedicated her efforts towards answering the vexing question of how to improve health access for patients and their families. This interest shaped her career choices and led her to spend 20 years with Roche Diagnostics, focused on improving health outcomes for patients with diabetes. With Roche, Nancy had the distinct privilege of working both domestically and abroad in a variety of challenging leadership positions that have prepared her to lead Timmy’s expansion. For five years, Nancy lived and worked throughout the Asia-Pacific region, and it was this period that served as a catalyst for her career change. She believes Timmy has the structure to reverse the cycle of poverty caused by a lack of access to basic healthcare in the communities it serves. She looks forward to using her knowledge of managing large remote teams in multiple countries and developing efficient operating models to continue to grow Timmy Global Health’s work and impact. Nancy is also an avid traveler, yoga enthusiast, and enjoys bicycling and reading.

Anna ButterbaughAnna Butterbaugh, Finance and Operations Manager

Anna originally joined Timmy Global Health as Office Manager in June 2009 after her involvement with the Butler University Timmy Chapter. She went on her first Timmy trip to Guatemala in May 2009 and has traveled again with the organization to Ecuador, Guatemala, and the Dominican Republic, seeing Timmy’s on-the-ground efforts grow over time. Currently as Finance & Operations Manager, Anna helps oversee the organization’s finance, marketing, and fundraising efforts. Anna graduated with honors from Butler University in May 2009 with a BS in Marketing and a minor in Visual Arts. Aside from her involvement with Timmy, she was involved in various business organizations as an undergraduate. Locally, she has had marketing internships at Eli Lilly & Company focusing on peer-to-peer communication channels for health care professionals, and The Children’s TheraPlay Foundation, a nonprofit organization that provides hippotherapy, occupational, and physical therapy for children with special needs. Her international experiences began when she studied abroad in Rome, Italy as an undergrad and she enjoys continuing her travels to both developed and developing countries.

Sarah HollisSarah Hollis, Development & Communications Manager

Sarah joined Timmy in 2012 after completing her Masters in Public Affairs at Indiana University in Bloomington, IN, where she concentrated in Nonprofit Management and Social Entrepreneurship. While completing her degree she interned with Community Enterprise Solutions in Cuenca, Ecuador – an organization that empowers communities to own micro-enterprises and provide their communities with sustainable resources. She also worked for the IU-SPEA Office of Overseas Study and helped to develop an international nonprofit management program for master’s students, “Advancing Community, Collaboration, and Training (ACCT)” in Mumias, Kenya. Sarah received her BA from Hanover College in May 2010, where she majored in Spanish and Communications, with a minor in International Studies. In college she studied abroad in Alcala de Henares, Spain, went on several service trips to the Dominican Republic, and volunteered as an ESL instructor at a Latino community center, La Casa Amiga. She is passionate about community development and empowerment on all levels. Sarah is also an avid listener of NPR and PRI!

Alyssa RossodivitaAlyssa Rossodivita, US Programs Manager

A native of Cleveland, OH, Alyssa returns to the Midwest after a three-year stint in the sunny Rio Grande Valley, along the border between Texas and Mexico. She worked for Migrant Health Promotion, overseeing four state and federal grants that provided health education via the Promotor(a) (community health worker) model. Before that, she worked closely with physicians rural, south Texas to implement a chronic disease self-management program for low-income Hispanic residents. For two years prior to her work in public health, Alyssa was a 7th grade science teacher with Teach for America. It was her students and their health that ultimately convinced her to move back towards her interest in access to healthcare. Alyssa received a B.S. in Biology from Denison University. Like a good liberal arts student, she minored in Spanish and studied abroad in Chile, spent the majority of her time growing and coordinating the service trip program, and played with yeast to complete her senior thesis on DNA repair after UV exposure. She adores making jam and dancing the Texas two-step, and is ecstatic to be back again in the good ole Midwest!

Katherine HornKatherine Horn, US Teams and TimmyCare Manager

Katherine joined Timmy Global Health following her senior year at Indiana University, where she graduated with her Bachelors degrees in Biology and Spanish, a certificate in Latin American Studies, and a minor in Chemistry. At Indiana University, Katherine volunteered with the IU Timmy chapter beginning her freshman year, traveling twice to Guatemala to work with Timmy’s international partner organization Pop-Wuj. Katherine’s time with Timmy sparked her interest in global health, Spanish, and living and working in developing countries – all of which led her to study abroad in Chile and Argentina for a year in college. Katherine is an avid traveler, a self-proclaimed adrenaline junkie, and she loves to bake. (Her cookies/brownies/muffins are always up for grabs at the Timmy office!) In the future Katherine hopes to attend medical school or get her Masters in Public Health. But for now, she is thrilled to be a part of Timmy Global Health and while at Timmy hopes to expand her knowledge of global health and gain experience in student outreach and non-profit programing.

Emily Bissett, Medical Service Trip Coordinator

A native North Carolinian, Emily began her journey with Timmy as a trip leader for North Carolina State University’s first Timmy trip to Ecuador. After an incredible experience working with the Timmy staff and partner organization in Santo Domingo, she was hooked. She continued to serve as the trip leader for a second time and led the development of a Timmy chapter at NC State. Her experiences with Timmy have intensified her passion for improving global health equity and engaging students in the conversation. Emily is a recent graduate of NC State University, receiving a Bachelors degree in Nutrition Science with minors in Spanish and Nonprofit Studies. During college, she led the Krispy Kreme Challenge (a nonprofit charity race), studied abroad in Peru, and conducted research on child nutrition and food security. Emily enjoys traveling, cooking, and all things outdoors. She recognizes that this is only the beginning of her lifelong commitment to global health and community-based development, and she is incredibly excited to be working with the Timmy team this year.

Rohan Divecha, Timmy Global Health Fellow

Rohan joined the Purdue Timmy team back in 2011 after hearing Dr. Chuck speak at a callout. Feeling inspired by what Dr.Chuck said and the work he had done, Rohan traveled with the Purdue chapter to Quito, Ecuador in the spring of 2012. During his final year at Purdue, he hosted the annual Purdue Timmy Global Health banquet and silent auction. Rohan’s work with Timmy led him to become a medical education intern at Quest Diagnostics where he worked with key opinion leaders all over the country to create educational material for medical staff at partner hospitals. After graduating in the spring of 2014 with a Bachelor degree in Neurobiology and Physiology and a minor in Psychology, he moved to Indianapolis to join the Timmy team. Rohan loves attending Pacers games, traveling with his family, making breakfast food, and watching movies. One day as a Physician, he hopes to be a medical director and help influence the medical landscape to make healthcare better for everyone. He is excited to join the Timmy team and help the fight against health disparities!

Charla CainCharla Cain, Safe Water Solutions Consultant

Charla is currently serving as a consultant for Timmy’s Safe Water Solution project in the Amazon Basin in Ecuador. Prior to this role she led organizational learning and monitoring & evaluation priorities as Timmy’s Organizational Learning & Project Manager. She also served as the stateside point-person for specific health projects within Timmy’s international programs, providing support to medical teams and working to develop Timmy’s overall impact. Monitoring & Evaluation activities will continue to be her purview as well as guidance on Timmy’s Safe Water Solutions project during this interim period. She holds a Master in Public Health Degree from the Johns Hopkins Bloomberg School of Public Health with a certificate in Environmental Health. She focused on health and water security issues (availability, accessibility, safety and sufficiency) and earned the Capstone Award for Outstanding Achievement. Charla holds a BA in Biology from Pacific Lutheran University in Washington State and a BS in Physical Therapy from Russell Sage College in New York. Prior to this career change to public health, she worked as a physical therapist in New York and PT Director in Minnesota and has been heavily involved in community health projects in Indiana.

Valerie MatronValerie Matron, International Programs Manager (based in Seattle, WA)

Valerie brings to Timmy her passion for development and Latin America as well as her background in program management. An explorer and a traveler, Valerie graduated in 2009 from Tulane University with a degree in International Development. Since graduating, Valerie has traveled to India, where she helped develop an Eye Care program in Dharamsala that provided pro-bono examinations and eyeglasses to the Tibetan refugee community. Returning from India, she moved back to New Orleans and worked for the municipal government of New Orleans managing the international affairs of Mayor Landrieu’s Office. She gained experience coordinating a media team as the Director of Marketing and Media for Recrear, an NGO working on community development and young people’s empowerment. Now, as Timmy’s International Programs Manager, she returns to Latin America, where she lived for several years growing up. In cooperation with Timmy’s Executive Director and Programs Manager, Valerie helps set organizational priorities for Timmy’s international programming and help to establish programmatic goals for each of Timmy’s international sites.

Muz AhmedMuz Ahmed, TimmyCare Director (based in Seattle, WA)

Growing up, Muz always wanted to pursue medicine. But after his family got their first computer, that dream was derailed. He began to program in high school, and picked up on it quickly. Excelling at this lead him to the University of Waterloo in pursuit of a Bachelors in Software Engineering. Upon completing the 5-year program and mandatory 6 internships with software companies (IDC, Royal Bank of Canada, Google, and Microsoft), he found the perfect role at Microsoft, in Seattle, working as a software engineer on HealthVault and Amalga. That gave him the opportunity to unite his passions, until he caught the travel bug and wanted to get away and experience other places and cultures. After volunteering on a Timmy trip to the Amazon Basin in 2012, he has taken on a full time volunteer position as the developer and director of Timmy’s electronic medical record (EMR) TimmyCare.

Tammy TruongTammy Truong, Director of Health Programs, Amazon Basin

Tammy originally joined the Timmy team as a student at Indiana University, traveling twice to Honduras and volunteering alongside Dr. Chuck in Timmy’s inaugural service trip to Pop Wuj in Guatemala. After graduating from the IU Kelley School of Business with degrees in Marketing and International Studies and a minor in Spanish, Tammy joined Procter & Gamble where she won national recognition as a Top Ten Territory Manager during two years with the company. Sensing a need to spend time abroad and delve deeper into international development, Tammy joined the Peace Corps where she spent a year in Bolivia working in micro-enterprise development. After an unexpected withdrawal of the country’s program, she elected to explore a different area of the world and transferred to The Gambia, West Africa where she worked as an agro-forestry volunteer. Back in the U.S., she continued to develop her management experience in the non-profit world. In addition to English, Tammy speaks Spanish, Vietnamese, and Mandinka. With the opportunity to live abroad once again and continue to improve her Spanish, Tammy is thrilled to return to Timmy!

Sean Maloney

Sean Maloney, Safe Water and Medical Programs Coordinator, Amazon Basin

Sean joins the Timmy team after spending the last 3 years living, volunteering and traveling throughout Latin America. After graduating with a B.S. in Biology from Muhlenberg College in Pennsylvania, Sean joined the University of Southern California’s Somos Hermanos Program in Guatemala to pursue his love of travel, improve his understanding of global health, and gain the language skills and cultural competency needed to provide high quality healthcare to Latino patients. This experience inspired him to join the US Peace Corps in Ecuador where he partnered with the Ecuadorian Ministry of Health to implement projects focused on HIV-Aids prevention and empowerment of PLWHA through wellness counseling. He was inspired to become a member of Timmy’s team when he met Dr. Chuck and experienced the organization’s impact firsthand while serving as an interpreter on a medical service trip in Ecuador. Sean will lead medical trips and develop Timmy’s Safe Water Program in collaboration with Timmy’s newest partner, MedWater. This program will bring WASH education and clean drinking water to the Timmy communities of the Amazon Basin.

Eleonore Van Wonterghem, Medical Programs Coordinator, Amazon Basin

After graduating from Edinburgh University with a Major in Medical Biology, Eleonore decided to pursue her strong interests in Public Health and her aspiration to study at the London School of Hygiene and Tropical Medicine, where she completed her MPH. Her passion for traveling and improving people’s health has led her to work for various NGOs worldwide, which made her realize that she wanted to pursue a career in the field of global health. Eleonore became very fond of Latin America after spending a year living and volunteering in Argentina and Chile. She also interned for Alma Sana in Peru, where she worked on a global health vaccination research project funded by the Bill and Melinda Gates Foundation. Most recently, Eleonore has worked with Doctors of the World in London, helping vulnerable migrants access primary healthcare services. This position opened her eyes to the necessity of accessible healthcare for all. Latin America has always left a special footprint in her mind and she is so excited to be back there, leading Timmy’s medical service trips and community health promoter outreach initiatives in the Amazon region of Ecuador.

Bijan Ghaffari, Medical Programs Coordinator, Ecuador

Bijan’s involvement with Timmy Global Health began in February 2014, as a long term volunteer based in Quito, Ecuador. But his first experience working in Latin America was in Honduras in the summer of 2008, where he focused on health education and nutrition projects in the rural area of La Paz. A Colorado native, Bijan ventured west where he received a bachelor’s degree in biochemistry at California Polytechnic State University, San Luis Obispo in 2013. After working in several labs and conducting clinical research, an interest in global health and the desire to return to Latin America brought Bijan to Timmy as a long term volunteer (LTV) in Quito, Ecuador. As an LTV, Bijan developed a community mapping project in the communities of South Quito, assisted with Timmy’s new chronic care management program, and supported the medical service trips in all of Timmy’s Ecuador sites. Now as the Medical Programs Coordinator for Quito, Bijan is excited to lead the Quito medical service trips and continue to build on the great work Timmy has done in its original project site.

MPC Dominican RepublicLauren Cottingham, Medical Programs Coordinator, Dominican Republic

As a Hoosier by birth and Boilermaker by choice, Lauren is extremely excited to join the Timmy team as the MPC in Monte Cristi. As an undergraduate nursing student at Purdue, she was first exposed to Timmy when she traveled with the brigade to Quito, Ecuador. Having already traveled abroad to Mexico multiple times for service trips, her time with Timmy created in her a desire to increase her knowledge about public health and underserved populations abroad. During her senior year, she interned at a rural clinic, working on health promotion through education about vaccinations among pediatric populations. She spent time studying abroad in Mexico as an undergraduate student, and just recently returned from Lima, Peru where she volunteered alongside local doctors and nurses to assist with chronic disease prevention in older adult populations through home visits and clinic rotations. For the past two years she has worked as a bedside nurse at Riley Hospital for Children, also serving as a medical interpreter and assisting on teams to improve services for limited English proficient patients and families. She hopes to one day attend graduate school to become a nurse practitioner so that she can continue to work with underserved populations both stateside and abroad.

Ashley AueAshley Aue, Medical Programs Coordinator, Guatemala

Ashley joins the Timmy team after nearly two years of living in Guatemala, where she’s been working alongside Timmy’s international partner organization Pop Wuj. A Michigan native, Ashley graduated from Grand Valley State University in 2008 with a degree in Psychology and Sociology. Upon graduation, she traveled around the US, and spent six months hiking the Appalachian Trail. After working for two years in a public mental health clinic in Tucson, AZ, she ended up in Xela, Guatemala in 2011. Since arriving she has served in a variety of capacities at Pop Wuj – from coordinating the family support center to student coordinating, to developing and implementing educational curriculum for at-risk students. After working for one year with a local Guatemalan midwives organization coordinating grants, medical and volunteer services, Ashley is excited to continue her relationship with Pop Wuj by joining Timmy Global Health as the local Medical Programs Coordinator.