Life-Changing Medical Care for the Hurting & Forgotten
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Board of Directors

AMH Mark Gerson

Mark Gerson

Co-Founder & Board Chair

Mark is a Jewish American entrepreneur, committed philanthropist and published author. . .

AMH Jon Fielder

Jon Fielder, MD

Co-Founder, Chief Executive & Board Vice-Chair

Dr. Fielder has served as a medical missionary to Africa for almost 20 years, previously caring for patients at AIC Kijabe and Partners in Hope Hospitals. He currently serves part time at Maua Methodist Hospital...

AMH Sean Fieler

Sean Fieler

Board Member

Sean Fieler graduated from Williams College in 1995 with a degree in Political Economy and received the Branson Memorial. . .

AMH Erica Gerson

Rabbi Erica Gerson

Board Member

Rabbi Erica Gerson graduated from Amherst College, magna cum laude, and received both rabbinical ordination and a Masters...

AMH Pavi Thomas

Pavi Thomas

Board Member

Pavi has been associated with AMH since its inception and has served on the AMH Board since 2011. He first met Dr. Jon Fielder...

AMH Aaron Greenblatt

Aaron Greenblatt

Board Member

Aaron Greenblatt, Chief Executive Officer of G&W Laboratories, joined the board of AMH motivated by our mission and the impact of each dollar invested in support of our partners...

Leadership/Management Team

AMH Jon Fielder

Jon Fielder, MD

Co-Founder & Chief Executive

Dr. Fielder has served as a medical missionary to Africa for almost 20 years, previously caring for patients at AIC Kijabe and Partners in Hope Hospitals. He currently serves part time at Maua Methodist Hospital...

AMH Scott-Marcelo

Scott Marcello, MACC

President

Scott currently serves as the President of African Mission Healthcare. He first met Dr. Jon Fielder, AMH Chief Executive and...

AMH Jonathan Mwiindi

Jonathan Mwiindi, MHA

Executive Vice President, Operations

A Kenyan native, Jonathan holds a Masters in Healthcare Administration from Seton Hall University. He is a trained pharmacist...

Perry Jansen, MD, MPH

Vice President, Strategic Health Partnerships

Perry leads innovative initiatives and partnerships designed to help the mission hospitals we serve become strong learning and teaching institutions...

AMH Beth Wangigi

Beth Wangigi, MPH

Vice President of Impact & Shared Services

Beth joined AMH as the SAFE Program Manager back in 2016. Since then she has served as Country Director and is...

AMH Kenneth Miriti

Kenneth Miriti, Clinical Officer, MBA

Vice President of Programs

Kenneth joined AMH in March 2011 as the Country Coordinator for Kenya office. He graduated with a Diploma in Clinical...

AMH Muingo Mutisya

Muingo Mutisya, BS

Vice President of Innovation & Incubation

Muingo is passionate about large-scale projects and children. She has extensive project management experience and is motivated by AMH's vision and mission..

AMH Mission

Mark Gerson, Co-Founder & Board Chair

AMH Mark Gerson

Mark is a Jewish American entrepreneur, committed philanthropist and published author. In 2010, after graduating Yale Law School, Mark co-founded African Mission Healthcare with close friend and former college roommate, missionary Dr. Jon Fielder. Mark and his wife, Rabbi Erica Gerson, recognized the outstanding impact of medical missionary efforts in Sub-Saharan Africa.

The couple, along with their 4 children, initiated the L’Chaim (“To Life”) Initiative in 2016 with the Gerson L’Chaim Prize, an annual $500,000 investment awarded for outstanding Christian medical missionary service in honor of the selected missionary physician and benefiting the hospital at which they serve. Recently, Mark and Erica have helped AMH to expand the initiative to include the L’Chaim Mission Hospital Teaching Network (MHTN). The MHTN is focused on making long-term investments to strengthen medical education centers that are training the next generation of African healthcare professionals to provide excellent, compassionate medical care. These professionals will in turn be prepared and equipped to train others, expanding their impact across Africa.

Mark brings 24 years of strategic and analytical professional prowess along with a clear conviction to contribute towards those most hurting and forgotten in Africa.

Jon Fielder, MD, Co-Founder, Chief Executive & Board Vice-Chair

AMH Jon Fielder

Dr. Fielder has served as a medical missionary to Africa for almost 20 years. Graduating with a Bachelor of Arts (BA) in Chemistry from Baylor College of Medicine in Houston, in 1999, he earned his Doctor of Medical degree (MD) from The John Hopkins University School of Medicine in Baltimore, Md., in 2002.

Dr. Fielder was a physician at AIC Kijabe Hospital in Kenya from 2002 to 2006, overseeing a US government-funded HIV program for nearly 2,000 patients. He served as a consultant physician at the Partners in Hope Medical Center in Lilongwe, Malawi (Africa), from 2009 to 2014. His handbook, Tuberculosis in the Era of HIV, has been used widely in several African countries.

In 2010, Dr. Fielder co-founded African Mission Healthcare (AMH) with the investor, entrepreneur, and philanthropist Mark Gerson, a college friend, to support the work of mission hospitals across Africa. Dr. Fielder serves as chief executive of AMH, which since its inception has provided financial support totaling more than $26 million and expertise to more than 40 hospital partners in 18 African countries.

Dr. Fielder and his wife, Amanda, a social worker, have three children.

Sean Fieler, Board Member

AMH Sean Fieler

Sean Fieler graduated from Williams College in 1995 with a degree in Political Economy and received the Branson Memorial Scholarship in 1994. Upon completion of his undergraduate studies, he joined Equinox Partners. He is the firm’s managing member and majority owner.

Mr. Fieler serves as Chairman of the American Principles Project. He is Chairman of the Chiaroscuro Foundation and serves as a board member of the Witherspoon Institute, the Dominican Foundation, the Committee for Monetary Research & Education, the Acton Institute and the Susan B. Anthony List, among others.

Mr. Fieler speaks and publishes on the topic of monetary reform. He has given talks on monetary policy at the annual Grant’s Conference, the Atlas Liberty Forum and has written for The Wall Street Journal and The Weekly Standard.

Mr. Fieler lives in Stamford, CT, with his wife, son and four daughters.

Rabbi Erica Gerson, Board Member

AMH Erica Gerson

Rabbi Erica Gerson graduated from Amherst College, magna cum laude, and received both rabbinical ordination and a Masters in Religious Education from Hebrew Union College-Jewish Institute of Religion. Erica served as the inaugural Director of Jewish Life at JCP Downtown in Manhattan before relocating to NJ, where she taught in the Florence Melton School of Adult Jewish Learning. She is a member of the Board of Trustees of Rodeph Sholom School, a Reform Jewish day school. Erica is also a member of the international board of United Hatzalah of Israel.

Erica, with her husband Mark Gerson (see Mark’s separate profile), initiated the L’Chaim (“To Life”) Initiative in 2016 with the Gerson L’Chaim Prize, an annual $500,000 investment awarded for outstanding Christian medical missionary service. More recently, she and Mark enabled the expansion of the L’Chaim initiative to include the AMH L’Chaim Mission Hospital Teaching Network.

Pavi Thomas, Board Member

AMH Pavi Thomas

Pavi has been associated with AMH since its inception and has served on the AMH Board since 2011. He first met Dr. Jon Fielder, AMH Chief Executive and Co-founder, in 2007 at Kijabe Hospital in Kenya which began a long-term relationship.

Pavi serves as the Lead Pastor of Heritage Christian Church (Heritage) in Westerville Ohio and the Executive Director of The Bridge Community Center in Columbus Ohio. Prior to joining the staff at Heritage, Pavi served as VP, Equipping for Great Commission and Telios Ministries.

Pavi graduated from Indian Institute of Technology in Madras India in 1984 with his undergraduate degree in Mechanical Engineering. He later received his Master of Science degree in Mechanical Engineering (in 1986) and Ph.D., Philosophy of Design, Mechanical Engineering (1994) from The Ohio State University in Columbus Ohio.

He first became interested in the work of AMH while supporting HIV care and AIDs Relief programs being led by Dr. Fielder, Jonathan Mwiindi (AMH EVP of Operations), and Kenneth Miriti (AMH VP of Programs) at Kijabe Hospital, even before AMH was officially founded. Pavi is passionate about AMH’s focus on enabling quality compassionate care for the poor across Sub-Saharan Africa by partnering closely with highly effective Mission Hospitals. He has seen the work and its impact first-hand and is highly motivated to see it expanded.

Pavi is married and has two children.

Aaron Greenblatt, Board Member

AMH Aaron Greenblatt

Aaron Greenblatt, Chief Executive Officer of G&W Laboratories, is the fourth-generation CEO from the Greenblatt family. Aaron directs his passions of entrepreneurship, strategic business partnerships, organizational development, and enhancement of organizational culture towards the continuous growth and evolution of G&W Laboratories. He is focused on deepening customer relationships and ensuring that G&W attracts and retains employees and strategic corporate partners who are aligned with the company’s purpose of helping people realize their potential.

Since joining G&W Laboratories in 2009, Aaron has held various roles and has been instrumental in growing the G&W legacy working closely with his father, Ronald Greenblatt, who is the former CEO and now Chairman, and other members of the company’s strategic leadership team.

Aaron is also Founder and CEO/Chairman of Flipt LLC, an “uber-like” Pharmacy Benefit Manager (PBM) alternative.

Aaron joined the board of AMH during 2018, motivated by our mission and the “return” (or impact) for each dollar invested in support of our mission hospital partners. He brings his various business experiences and skills to help strengthen AMH’s strategy and execution.

Aaron completed his undergraduate studies at the University of Maryland College Park and earned his Doctor of Pharmacy (PharmD) degree from the University of Maryland’s School of Pharmacy

Jon Fielder, MD, Co-Founder & Chief Executive

AMH Jon Fielder

Dr. Fielder has served as a medical missionary to Africa for almost 20 years. Graduating with a Bachelor of Arts (BA) in Chemistry from Baylor College of Medicine in Houston, in 1999, he earned his Doctor of Medical degree (MD) from The John Hopkins University School of Medicine in Baltimore, Md., in 2002.

Dr. Fielder was a physician at AIC Kijabe Hospital in Kenya from 2002 to 2006, overseeing a US government-funded HIV program for nearly 2,000 patients. He served as a consultant physician at the Partners in Hope Medical Center in Lilongwe, Malawi (Africa), from 2009 to 2014. His handbook, Tuberculosis in the Era of HIV, has been used widely in several African countries.

In 2010, Dr. Fielder co-founded African Mission Healthcare (AMH) with the investor, entrepreneur, and philanthropist Mark Gerson, a college friend, to support the work of mission hospitals across Africa. Dr. Fielder serves as chief executive of AMH, which since its inception has provided financial support totaling more than $26 million and expertise to more than 40 hospital partners in 18 African countries.

Dr. Fielder and his wife, Amanda, a social worker, have three children.

Scott Marcello, MACC, President

AMH Scott-Marcelo

Scott currently serves as the President of African Mission Healthcare. He first met Dr. Jon Fielder, AMH Chief Executive and Co-founder, in 2006 and Jonathan Mwiindi, AMH Executive Vice President, in 2007 while they were both serving at Kijabe Hospital in Kenya. This began a long-term relationship which led to Scott joining the AMH Board in 2011 and, ultimately, joining the leadership team at AMH.

Prior to joining the AMH team, Scott served as a partner with KPMG where he held a number of senior roles including serving as a member of the Firm’s Management Committee and Board of Directors.

Scott graduated with his undergraduate degree in Business Administration from Stetson University in DeLand Florida in 1984. In 1985 he received his Masters of Accountancy, also from Stetson.

His early experiences as a volunteer at different hospitals in Kenya and with AMH helped him to understand the incredible impact that mission hospitals have on the people of Sub-Saharan Africa. Scott quickly saw how these mission hospitals not only provide critically needed quality, compassionate care but also provide outstanding training and serve as institutions of hope for those in need. It was obvious to Scott and his wife, Dené, that even moderate investments of time, talent and finances could make a lasting impact on these hospitals and on the millions of people they serve.

Scott and Dené have four grown children.

Jonathan Mwiindi, MHA, Executive Vice President, Operations

AMH Jonathan Mwiindi

A Kenyan native, Jonathan holds a Masters in Healthcare Administration from Seton Hall University. He is a trained pharmacist and formerly directed the pharmacy and HIV programs at AIC Kijabe Hospital, Kijabe Kenya. Jonathan worked for the University of Maryland, assisting UM’s Institute of Human Virology establish its Kenyan office. He also served as coordinator for the global health program at the University of Texas Medical Branch.

Jonathan first met AMH co-founder, Dr. Jon Fielder, when he (Jonathan) began working at Kijabe Hospital. Together the two of them and Kenneth Miriti (see Kenneth’s separate profile) helped to significantly expand the U.S. government funded HIV program and related community outreach activities. Jonathan helped Dr. Fielder establish AMH in 2010 and has been actively involved in expanding AMH’s programs from a focus on HIV care and training to a broad range of infrastructure, clinical care, training and management advisory services to more than 40 African hospitals.

Jonathan, his wife Lily (an MD with a specialization in endocrinology) and their two children currently live in Indiana.

Perry Jansen, MD, MPH, Vice President, Strategic Health Partnerships

Perry leads innovative initiatives and partnerships designed to help the mission hospitals we serve become strong learning and teaching institutions. His role includes collaborating with AMH partners to bring strategic, financial and technical resources together to strengthen individual hospitals and the health systems that they support. Perry’s current activities include leading AMH’s Mission Hospital Teaching Network and L’Chaim Prize initiatives.

Perry is a family physician who served as an SIM missionary in Malawi from 2000-2016, where he also met and worked with Dr. Jon Fielder, AMH Co-Founder and Chief Executive. Dr. Jansen played an integral role in bringing life-saving antiretroviral therapy to this very poor country. He founded Partners in Hope (PIH), a non-profit hospital which has grown to be one of the largest providers of HIV treatment in and around Malawi’s capital city of Lilongwe. PIH is a key training partner with the country’s Ministry of Health and USAID. In 2016, Perry realized his goal of transferring leadership of PIH and its training grants over to national leadership.

PIH is an established hospital partner of AMH. As a result, Perry has experienced firsthand the approach and impact of AMH with its partners. This and AMH’s commitment to the long-term development of future African health workers attracted Perry to join the organization.

Beth Wangigi, MPH, Vice President of Impact & Shared Services

AMH Beth Wangigi

Beth joined AMH in 2016 as the manager of the Surgical Access for Everyone (SAFE) Program. She now serves as the Kenya Country Director and as vice president of Shared Services. Most recently, Beth has assumed the role of overseeing the measurement and analysis of AMH’s impact, focused on improving our approach to monitoring, measuring and evaluating the effectiveness of our various program.

Prior to joining AMH, Beth worked at Kenya’s Leading Telecommunications company (Safaricom) for nearly 8 years as a Workforce Performance Analyst and later as a Workforce Planning Analyst. At AMH she is excited to be part of a passionate team that is committed to serving the vulnerable in the society. She holds an undergraduate in Biochemistry and a Master of Public Health degree.

Beth is married with two children. She is passionate about the great outdoors and loves mountain climbing.

Kenneth Miriti, Clinical Officer, MBA, Vice President of Programs

AMH Kenneth Miriti

Kenneth first met AMH co-founder, Dr. Jon Fielder, at Kijabe Hospital. Together with Dr. Fielder and Jonathan Mwiindi (see Jonathan’s separate profile), Kenneth helped to significantly expand the U.S. government funded HIV program and related community outreach activities. Kenneth joined AMH in March 2011 as the Country Coordinator for Kenya office and has been actively involved in expanding AMH’s programs to include a broad range of infrastructure, clinical care, training and management advisory services to more than 40 African hospitals.

Kenneth graduated with a Diploma in Clinical Medicine, Bachelor’s degree in Administration from University of South-Africa (UNISA), later receiving is Masters of Business and Health Systems Administration. Prior to Joining AMH, Kenneth worked with the Kenyan office of the University of Maryland to lead the HIV care and treatment efforts in Kenya as the In-Service Lead and Training Manager. He also worked at AIC Kijabe hospital in various capacities.

Kenneth is highly motivated by the mission and approach of AMH. As he recently shared, “I love working in an environment focused on the challenges on improving healthcare in mission hospitals. My passion is to strengthen models and institutions that enable high-quality care to the poor.”

Muingo Mutisya, BS, Vice President of Innovation & Incubation

AMH Muingo Mutisya

Muingo joined AMH in October 2018 and is passionate about large-scale projects and children. She graduated with a Bachelors degree in Sociology from Kenyatta University and later trained in Project management. Prior to Joining AMH, Muingo worked with Kenya’s Leading Telecommunications company (Safaricom) in different capacities including customer retention, Quality Assurance, and project management. Her experiences included managing large, multi-phase projects including construction and technology.

Muingo was attracted to join AMH by our vision and mission. She also loves the very practical way that AMH approaches its role. As she said, “I love how AMH is impacting institutions and individuals – one life at a time, one mission hospital at a time”

Muingo is married to Orlando and lives in Nairobi, Kenya.