Brian J. Glen, DO

Brian J. Glen, DO, is a pediatrician at Cloverleaf Pediatrics.

Dr. Glen sees patients at:

Cloverleaf Pediatrics
5301 Veterans Memorial Parkway
St. Peters, MO 63376

Please call 636-939-3362 for an appointment.

What during your training led you to choose your specialty?

During my training, I found a deep passion for both science and the personal connections I was able to establish with families. Pediatric care combines these two elements in a meaningful way. I loved how the role of a pediatrician goes beyond just medical knowledge—it’s about understanding a child’s development, supporting their well-being and building trust with families.

What brought you to WashU Medicine?

WashU Medicine offers a supportive environment that values both scientific research and compassionate care. The opportunity to work with a team that shares my commitment to improving children’s physical and mental health made it an ideal choice.

Which aspect of your practice is most interesting?

I’m particularly interested in working with children and their families on prevention and early intervention.  It’s incredibly rewarding to be able to guide families through challenges early on, helping to establish healthy habits and coping mechanisms that can have a lasting impact. I find that creating a strong, trusting relationship with families makes a significant difference in their children’s overall health and happiness.

What do you want patients to know about physical fitness in children?

Physical fitness plays an essential role in a child’s overall development. It’s not just about maintaining a healthy weight or appearance—it’s about building resilience, improving mental health and supporting cognitive development. Exercise and play are crucial for emotional regulation and self-esteem. I encourage families to view fitness as fun and a regular part of life, not something to dread or force.

Are there any other new developments in your field that you are excited about?

I’m particularly excited about recent advances in weight loss management, especially in terms of more personalized, evidence-based approaches that go beyond just diet and exercise. There’s also a lot of promising research around integrating mental health care into pediatric care, making it easier for children and families to access comprehensive support earlier.

What aspects of pediatric mental health do you feel are important?

Early intervention is key—catching signs of mental health challenges early can significantly improve a child’s prognosis. It’s also important to treat mental health as part of a child’s overall health, rather than separate from it. Building open communication with families and providing them with resources to manage mental health proactively is something I emphasize in my practice.

Where are you from?

I grew up in the Chicago suburbs. I did medical school in North Carolina, then moved to St. Louis where my wife and her family are from. 

Which award or achievement is most gratifying?

Becoming chief resident was definitely a highlight of my career. It was gratifying not only because it was an honor but because it allowed me to mentor others, improve residency programs and make a difference in the training of the next generation of pediatricians.

What is the best advice you’ve received?

The best advice I’ve received is to “always listen first and understand before acting.” In pediatrics, every situation is unique. By truly listening to both the child and the family, you can often uncover underlying concerns that might not be immediately apparent. This approach helps build trust, ensures a comprehensive understanding of the issue and ultimately leads to better, more personalized care.

If you weren’t a doctor, what would you like to be doing?

If I weren’t a doctor, I could see myself working in community health education, advocating for children’s health and fitness on a larger scale. Or, perhaps, something related to mental health awareness—either through writing, speaking or working directly with organizations that promote well-being for children and families.