The People Behind Your Care

Meet N of 1.

Personalized care begins with a personal connection. Get to know the people who bring the N of 1 Method to life.

Dr. James McDowell

James (Jamie) G. McDowell, Jr., MD, FACS, FASMBS is a board-certified general and bariatric surgeon with over 25 years of experience, serving as a key partner at N of 1 Wellness in Franklin, Tennessee. He integrates his surgical precision with the clinic’s functional medicine to deliver personalized care for metabolic health, weight loss, and inflammation.

Surgical Background

Dr. McDowell earned his MD from the University of Texas Health Science Center at San Antonio in 1998, followed by internship and residency in surgery at Vanderbilt University Medical Center (1998-2004). Board-certified by the American Board of Surgery, he specializes in minimally invasive procedures, including laparoscopic gallbladder removal, bariatric surgery (e.g., Roux-en-Y gastric bypass), endoscopic interventions, wound care, and vascular assessments.

Leadership Roles

He has served as President of the Nashville Surgical Society (2013), Chief of Surgery at St. Thomas West and Midtown Hospitals, and Director of the Center for Surgical and Medical Weight Loss at St. Thomas Midtown. Affiliated with TriStar Centennial Medical Center, NorthCrest Medical Center, and Surgical Alliance of Middle Tennessee, where he practices general, bariatric, and robotic surgery.

N of 1 Wellness Partnership

At N of 1 Wellness, Dr. McDowell collaborates with founder Michael Kevin Grass to combine bariatric expertise with therapies like GLP-1 drugs, peptides, exosomes, and hormone replacement, supporting over 5,000 patients annually. His focus on long-term outcomes enhances the clinic’s root-cause approach to wellness.

Kevin Grass

Kevin Grass is the CEO and Owner of N of 1 Wellness, a functional medicine practice in Franklin, Tennessee, dedicated to personalized health optimization through root cause analysis. With over 25 years of experience in clinical development, sales management, and medical devices across biotech sectors including aesthetics, plastic surgery, dermatology, GI endoscopy, and oncology, he has excelled in product launches, team training, and market strategy.

Professional Journey

Kevin holds a Bachelor of Science from Mississippi State University and advanced through leadership roles at TELA Bio, Sientra, Integra LifeSciences, Stryker, and Olympus Surgical, excelling in product launches, team training, and market strategy. At TELA Bio, he drove clinical development for innovative biologic tissue repair products, overseeing trials, regulatory submissions, and commercialization of advanced wound matrices and hernia repair solutions in the biotech sector. Founding N of 1 Wellness in 2023 with Dr. James McDowell, a bariatric surgeon and president of the Nashville Surgical Society, to offer tailored programs in age management, weight loss, hormone therapy, peptides, GLP-1 drugs, exosomes, and IV therapies. The “N of 1” philosophy treats each patient as their own control group, empowering patients to thrive via evidence-based, customized care.

Personal Motivation

His passion ignited after the tragic loss of his brother to obesity and mental health challenges, prompting Kevin to confront his own signs of cognitive decline, weight gain, and reduced well-being. This profound experience fueled his commitment to helping others reclaim vitality, blending Eastern and Western medicine for comprehensive wellness.

Enduring Commitment

He fosters a collaborative community at N of 1 Wellness while staying ahead of research to curate cutting-edge therapies and empower clients to thrive.