For general inquiries contact John Henderson:

202 549-8233

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Park Rx America Team

Dr. Robert Zarr, MD, MPH, Founder & Medical DirectorDr. Robert Zarr, MD, MPH, Founder & Medical Director

Dr. Robert Zarr is a board-certified pediatrician at Unity Health Care, located in Washington, DC, where he cares for low-income and immigrant populations. He previously served as advisor to the National Park Service on park prescriptions. You will often find him riding his recumbent trike on the Capital Crescent Trail. LEARN MORE »

John Henderson, Executive DirectorJohn Henderson, Executive Director

John is a Certified Parks and Recreation Executive, city planner, public participation practitioner, arbitrator, and mediator. He is also an attorney licensed to practice law in Illinois and the District of Columbia. He enjoys hiking and biking and is passionate about finding opportunities to bring nature into city neighborhoods.

Matthew Scribner, Chief Technology OfficerMatthew Scribner, Chief Technology Officer

Matthew is a DC native "full-stack" developer with knowledge in both front-end to back-end software development. He believes in coding for a cause and finding ways to make technology easy and accessible.

Patrick Lunsford, Communications DirectorPatrick Lunsford, Communications Director

Patrick manages public outreach and funding efforts. Previously, he was a public affairs manager for a financial regulatory agency and a journalist for more than a decade. His love of the outdoors and commitment to accessible public lands brought him to Park Rx America.

Isabelle Franklin, InternIsabelle Franklin, Intern

Isabelle is a premed undergrad at the University of Virginia pursuing a Biology major and Spanish minor. In her spare time she enjoys playing soccer and leading hiking, white water kayaking, and rock climbing. She is currently interviewing park prescribing health providers to better understand their prescribing patterns and ways to facilitate more prescribing.

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