David Sabgir, MD, FACC

Founder & Cardiologist

Pronouns: He, Him, His

Team Member since 2005

David went to Miami of Ohio for undergrad, Medical College of Ohio for medical school, and served his internship, residency, and fellowship at The Ohio State University Medical Center.

He is a full-time cardiologist with OhioHealth in Columbus, Ohio, and still leads a local Walk with a Doc chapter on Saturday mornings at a local park.

David is married to Kristin and has two children, Ally and Charlie, and two poodles, Phoebe and Henry.

Connect with David on LinkedIn

Rachael Habash, MA

Chief Operating Officer

Pronouns: She, Her, Hers

Team Member since 2014

Rachael graduated from the University of Michigan (Go Blue) with a B.A. in Psychology.

She then served in the United States Army as a Medical Service Officer prior to earning her M.A. in Counselor Education at OSU.

The prospect of utilizing her professional experience as a leader, resource manager and program innovator while encouraging healthy physical activity, is what initially attracted her to WWAD.

Now that she better understands the impact of the miracle drug (walking) and the vast number of people served by WWAD, she’s hooked! It’s almost as addicting as her girls’ (Grace and Nora) smiles…

Connect with Rachael on LinkedIn

Bryan Romey

Program Manager

Pronouns: He, Him, His

Team Member since 2017

Bryan was lucky enough to get paired with Walk with a Doc for a class project during his final semester at The Ohio State University in 2017.

He graduated with a B.S. in Health Sciences and was thrilled to find out that an intern position had opened up at WWAD.

After eight months as an intern, he joined full-time and now spends his days changing the world by supporting our incredible Walk leaders and walkers.

Outside of the office, he enjoys playing basketball and golf, helping at the Columbus Dream Center, and walking with his family.

Connect with Bryan on LinkedIn

Sophia Leonetti

Program Engagement Coordinator

Pronouns: She, Her, Hers

Team Member since 2025

Sophia joined Walk with a Doc after discovering the organization while earning her MPH in Epidemiology at The Ohio State University College of Public Health in 2025.

What started as an internship quickly turned into a passion for the mission, and she was excited to officially join the team full-time in spring 2026.

Sophia grew up in Columbus and played soccer at Capital University during undergrad, where she met her fiancé, Justin.

Outside of work, Sophia and Justin love staying active, playing in recreational sport leagues, trying new restaurants, cooking together, traveling, and spending time with family and friends.

Connect with Sophia on LinkedIn

Mona Dave, MD

Texas Regional Program Coordinator & Pediatric Gastroenterologist

Pronouns: She, Her, Hers

Team Member since 2026

Mona earned her undergraduate degree from Villanova University, followed by her medical degree from the Medical College of Pennsylvania.

She completed her internship, pediatrics residency, and fellowship in pediatric gastroenterology at the Children’s Hospital of Pittsburgh.

In 2006, after completing her training, she returned home to Dallas, Texas.

She is double board-certified in pediatric gastroenterology and obesity medicine and treats infants and children. She is passionate about helping everyone lead a healthy and active life.

She leads her local monthly walk chapter with her husband, Nilesh. She has grown her walk to include “Eat with a Doc & Walk with a Doc.”

Connect with Mona on LinkedIn