“If you have early intervention, you have better outcomes. So screening matters. Access is not equal across the board, and neither is health care.”
Patricia Nunn, RN
Lead Health Coach
Mattapan · Dorchester · Roxbury · Greater Boston
We show up for our neighbors. Every week. In every neighborhood.
We are a community health organization rooted in Mattapan, Dorchester, and Roxbury, serving neighborhoods throughout Greater Boston. Our team offers free cardiometabolic screenings, blood pressure checks, and health education. These services are provided by community health workers who live and work in your area.
No insurance. No paperwork. No cost. Ever.
“I came to the farmers market for vegetables and left with my life. My blood pressure was 182/110. I didn't feel anything wrong. The health coach found it and got me to a doctor the same day. Six months later, I'm on medication and my numbers are normal.”
Karen, 64 · Mattapan
Years of showing up, measured in lives changed.
2,340+
Cardiometabolic screenings and health education sessions across Greater Boston between 2023 and 2025.
47+
Hypertensive crises caught and connected to care before something worse happens. Twenty-two of them in 2025 alone.
3.2×
People come back at more than three times the usual rate, because someone they trust is there.
The Ubuntu Spirit
“I am because we are. My survival was a gift from a community. Now we give it back.”
Built from the inside out.
Heart of a Giant Foundation was founded by Bouba Diemé, the man behind the name, who received a heart transplant at Brigham and Women’s Hospital in October 2022.
Six years on the waiting list. Nearly six years living with a mechanical heart pump. The relationships that sustained him through his illness became the design brief for the organization he built.
“My goal is to use my lived experience to help eliminate preventable harm and improve the management of chronic health conditions in our communities.”
Bouba Diemé, Founder
From our team
The people who keep showing up.
“Trust isn’t built on credentials. It’s built on shared experience.”
Andrelle Cadet-Piard, CMA
Community Health Coach · Mattapan & Haitian Communities
“HGF is filling a gap our system has never been designed to close. These aren't just screenings. They are sustained relationships between community members and trusted health advocates. The clinical outcomes are remarkable.”
Dr. Emefah Loccoh, MD, Cardiologist, Brigham and Women's Hospital · HGF Board Member
Free to every participant. Funded by grants, donors, and the institutions we work with.
You can be part of this
Every gift puts a health worker on a porch step this week.
“The people are all the goodwill, all the support, all the love we’re getting. It must come from people that have a big heart, the heart of a giant.”
Your gift is matched, up to our current matching pool. Text EVERYGIFT2X to 44-321.
Find us
We are rooted in Mattapan, Dorchester, and Roxbury, and we work across Greater Boston.
Free screenings. No appointment needed at most sites. We speak English, Spanish, Kreyòl ayisyen, Kriolu, and Vietnamese.