Life-Changing Medical Care for the Hurting & Forgotten
  • This field is for validation purposes and should be left unchanged.

Board of Directors

AMH Mark Gerson

Mark Gerson

Co-Founder & Chairman of the Board

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

AMH Jon Fielder

Dr. Jon Fielder

Co-Founder, Chief Executive and Board Member

Dr. Fielder has served as a medical missionary to Africa for almost 20 years. Graduating with a Bachelor of Arts (BA) in...

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

Leadership/Management Team

AMH Jon Fielder

Dr. Jon Fielder

Co-Founder and Chief Executive

Dr. Fielder has served as a medical missionary to Africa for almost 20 years. Graduating with a Bachelor of Arts (BA) in...

AMH Scott-Marcelo

Scott Marcello

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

Executive Vice President, Operations

A Kenyan native, Jonathan holds a Masters in Healthcare Administration from Seton Hall University. He formerly directed...

AMH Claire Costanzo

Claire Costanzo

Vice President, Development

Claire Costanzo joined AMH in June of 2018. She graduated from the University of Georgia with a bachelor’s degree in English. ...

AMH Beth Wangigi

Beth Wangigi

Vice President of 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

Vice President of Programs, Kenya

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

Vice President of Innovation & Incubation, Kenya

Muingo joined AMH in October 2018 and is passionate about projects and children. She graduated with a Bachelors degree...

AMH Mission

Mark Gerson, Co-Founder & Chairman of the Board

AMH Mark Gerson

Mark is a Jewish American investor and businessman, 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 impact of medical missionary efforts in Sub-Saharan Africa. The couple, along with their 4 children, initiated the “L’Chaim Prize,” an annual $500,000 investment awarded towards the efforts of an outstanding Christian medical missionary. He brings 24 years of strategic and analytical professional prowess along with a clear conviction to contribute towards those most hurting and forgotten in Africa.

Dr. Jon Fielder , Co-Founder, Chief Executive and Board Member

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 to date has provided $20 million in grant funds.

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.

A graduate of Williams College with a degree in political economy, 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.

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, Founder and CEO/Chairman of Flipt LLC, an “uber-like” Pharmacy Benefit Manager (PBM) alternative. Flipt provides employers 30-40% savings on their Pharmacy Benefit spend while aligning the plans sponsors, plan members, retailers and pharmaceutical companies to deliver the right medicine at the right price while empowering the most convenient and patient-friendly experience.

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 previously served as Director of Supply Chain; Director of Packaging; Director of Business Development and Sales, and most recently, served as the company’s Chief Commercial Officer (CCO).

Aaron’s focus on developing and executing the company’s growth strategy has been transformational for this nearly century-old company. As the CCO, Aaron was the architect and chief negotiator of G&W’s first acquisition of a North Carolina-based manufacturing facility from Actavis, Plc. on June 2014, and of the company’s second acquisition of a Sellersville, Pennsylvania-based Teva Pharmaceutical’s facility in April 2015 tripling the company’s manufacturing footprint and employee population in a ten-month period. These acquisitions have provided new growth opportunities enabling the company‘s entrance into new markets, while expanding the company’s reach, geographically and with greater employee population and more diverse product portfolio.

Aaron continues to focus on instilling the core values into the company culture, talent-recruitment and development, commercial partnerships, and new product acquisitions, in order to further increase the company’s growth trajectory, and continue to build a sustainable organization.

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.

Dr. Jon Fielder, Co-Founder and 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 to date has provided $20 million in grant funds.

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

Scott Marcello, 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, 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 had the opportunity to hold a number of 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 are also 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, Executive Vice President, Operations

AMH Jonathan Mwiindi

A Kenyan native, Jonathan holds a Masters in Healthcare Administration from Seton Hall University. He formerly directed the pharmacy and HIV program at Kijabe Hospital and helped the University of Maryland Institute of Human Virology establish its Kenyan office. He served as coordinator for the global health program at the University of Texas Medical Branch.

Jonathan lives with his wife and two children in Indiana.

Claire Costanzo, Vice President, Development

AMH Claire Costanzo

Claire Costanzo joined AMH in June of 2018. She graduated from the University of Georgia with a bachelor’s degree in English. She spent time studying on Semester at Sea and Oxford University while in undergrad and received a certificate in grant writing from Emory University and an Advanced Fundraising Certificate from The Association of Fundraising Professionals.

While maintaining her residential real-estate license, Claire began working as the Development Director for a non-profit whose mission was based in Sub-Saharan Africa. After 7 years of passionate service there, she went on to become the Vice President of Operations at a tech start-up. However, she knew she was called to serve purpose-driven mission work in Sub-Saharan Africa and is thrilled to be back doing so with AMH.

Beth Wangigi, Vice President of Shared Services

AMH Beth Wangigi

Beth joined AMH as the SAFE Program Manager back in 2016. Since then she has served as Country Director and is currently the VP of Shared Services. Prior to joining AMH, she had worked in Safaricom for almost 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, Vice President of Programs, Kenya

AMH Kenneth Miriti

Kenneth joined AMH in March 2011 as the Country Coordinator for Kenya office. He graduated with a Diploma in Clinical Medicine, Bachelor’s degree in Administration from University of South-Africa (UNISA), later taking MBA and Health Systems Administration. Prior to Joining AMH, Kenneth worked with University of Maryland- Kenya office to lead the HIV care and treatment efforts in Kenya as the In-Service Lead and Training Manager. He had worked also at AIC Kijabe hospital in various capacities.

He is married to Frasiah Nyambura, living in Naivasha with their 4 children.

“I love working in an environment that has focused on challenges facing healthcare service delivery in mission hospitals and learn models that enable high-quality care to the poor”

Muingo Mutisya, Vice President of Innovation & Incubation, Kenya

AMH Muingo Mutisya

Muingo joined AMH in October 2018 and is passionate about 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 in different capacities including customer retention, Quality Assurance, and project management.

She is engaged and hopes to start a family soon.

“I love how AMH is impacting the Market place – one life at a time, one mission hospital at a time”