Committed to Service and Education
Founded in 1969, the nonprofit Hackett Hemwall Patterson Foundation (HHPF) delivers urgent medical care, trains medical providers and donates supplies to underserved communities in Honduras and Mexico.
Our programs include
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Prolotherapy for chronic pain
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Vein sclerotherapy and wound treatments
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Ear, Nose, Throat surgical care
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Audiology testing & hearing aids
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Dialysis access procedures
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Global Prolotherapy Conference
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Donations - supplies to support hospitals, schools, nursing homes and orphanages
HHPF hosts an annual international prolotherapy and regenerative therapy conference.
78,324
Patients Served
4,860
Practitioners Trained
57
Years Serving
Our Programs and Services
HHPF sponsors annual mission trips to Honduras and Mexico, providing hands-on care and expert-led training. These initiatives bring together healthcare professional participants and local providers to treat patients and build clinical skills. In partnership with local hospitals and organizations, all levels of healthcare providers, community leaders and volunteers, we create a lasting healthcare impact.
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Service-Learning Trips
International opportunities for hands-on medical training & patient care
Upcoming Events
HHPF 44th Annual Conference
Core of Regenerative Medicine
MSK Pain Treatment:
Prolotherapy & Perineural Injection Therapy
Join the world's longest-standing organization dedicated to teaching prolotherapy regenerative injections. HHPF has hosted conferences and international service-learning medical missions, bringing much needed healthcare to underserved countries since 1969.
Be a part of the reimagined HHPF 44th Annual prolotherapy and Regenerative Medicine Conference.
Date:
SEPTEMBER 23 - 26, 2026
Venue:
University of Wisconsin
Madison at the Pyle Conference Center.
Mexico 2027
Service Learning Trip
(By invite only)
Prolotherapy January 2-9
Veins January 2-9
Honduras 2027
Service Learning Trip
Prolotherapy Feb 26-Mar 6
Veins Mar 5 - Mar 13
Vascular & Dialysis Mar 5 - Mar 13
ENT Mar 13- Mar 20
$100 Early Bird Discount!
Apply by December 1, 2026
$100 Early Bird Discount!
Apply by December 1, 2026
Service-Learning Trips
Travel with Purpose. Learn Through Service
Since 1969, HHPF has trained physicians, healthcare teams, and volunteers from over 30 countries—united in a mission to heal, teach, and serve.
