Now Accepting New Patients
At Happy Hearts Pediatrics, we believe exceptional care starts with compassion, trust, and quality time. Our practice was built with one goal in mind: to create a child-focused medical home where families feel supported, informed, and truly heard. We’re more than just a clinic — we’re your partner in your child’s health journey, from newborn visits to adolescence and every stage in between.

Jill Richey

Co-Founder & Medical Provider

Jill Richey has spent over a decade caring for children and empowering parents across Arizona. Her approach is gentle, unrushed, and deeply rooted in integrity. 

“My number one goal is to provide ethical, compassionate, and personalized care — because every child deserves to feel safe, heard, and supported.”

Will Fuller

Co-Founder & CEO

As the operational engine behind Happy Hearts Pediatrics, Will brings a powerful blend of vision, heart, and execution. For over 4 years, Will has led the business operations of Happy Hearts Mobile Pediatrics — overseeing everything from strategy and growth to patient experience and compliance.

“I believe great care starts long before a patient walks in the door — it begins with building systems, spaces, and a team that reflects our commitment to families.”

Mandi Coatsworth

Front Desk Coordinator

Mandi is the warm and welcoming face you’ll see when you walk through our doors. As our Front Desk Coordinator, she helps ensure every visit runs smoothly — from check-in and scheduling to answering your questions and making sure your family feels right at home.

With a calm presence and a heart for helping others, Mandi brings a personal touch to every interaction. Whether you’re a first-time visitor or a returning patient, she’s here to make your experience easy, efficient, and stress-free.

Our Mission

To provide personalized, high-quality pediatric care that empowers families, supports healthy development, and prioritizes the well-being of each child — emotionally, physically, and socially.

Why Choose Us

Trusted Pediatric Care That Puts Your Family First

At Happy Hearts Pediatrics, we believe great care starts with trust, compassion, and time well spent. We go beyond the basics to create a pediatric experience where your child feels safe, seen, and genuinely cared for — every step of the way.

Same-Day Sick Visits

Get care when your child needs it most — with fast, flexible scheduling.

10+ Years of Experience

Led by Jill Richey, PNP-PC, a trusted pediatric provider serving Arizona families with expertise and heart.

Rapid In-Office Testing

Quick answers with on-site testing for strep, flu, RSV, UTIs, and more — no outside labs needed.

1-on-1 Personalized Care

We never rush your visit. Your child gets the time and attention they truly deserve.