Expert Doctors Guiding Your GLP-1 Journey
Meet the Expertise Behind Your Care
Johnathan Miller, MD
With over five years of experience, he offers weight loss and longevity consultations. Dr. Miller earned his medical degree from Columbia University and completed his internship at Washington University in Saint Louis.
Avia Barrett-Powell
She is an expert in GLP-1 medications, specializing in weight management & obesity treatment. With over 25 years of clinical experience, she focuses on providing science-backed, patient-centered solutions to support sustainable health outcomes.
Why Patients Choose Our Doctors
Together, our team brings years of multidisciplinary experience from metabolic medicine to telehealth innovation, all dedicated to helping patients achieve safe, sustainable results.
- We have a team of bariatricians, general physicians, metabolism specialists, health coaches, and nutritional advisors.
- All our doctors are affiliated with top U.S. universities and are licensed professionals.
- All GLP-1 medication guidance is evidence-based and tailored to each patient’s health.
- Our doctors offer clear and continuous support in your weight loss journey.
- Each doctor evaluates your health, and prescriptions are provided only when medically appropriate.
Personalized Care for Every Condition
Obesity and Overweight
We support your weight-loss journey with personalized treatment plans designed to fit your lifestyle and health goals.
Type 2 Diabetes
Our doctors help you manage blood sugar safely, improve energy, and reduce your risk of long-term complications.
Metabolic Dysfunction
Our team focuses on restoring healthy metabolism so your body can use energy more efficiently and feel balanced again.
Prediabetes
Early care makes a big difference. Our specialists help you take proactive steps to prevent diabetes before it develops.
Cardiometabolic Health
We help improve heart and metabolic wellness through personalized nutrition, exercise, and medical guidance.
Appetite and Craving Regulation
Our evidence-based strategies help you understand and manage hunger cravings for better control and sustainable results.
Our Medical Philosophy
At Ongo Weight Loss, our licensed physicians combine evidence-based medicine with compassionate telehealth care. Every consultation is HIPAA-compliant, personalized, and centered on your long-term well-being. We only prescribe FDA-approved GLP-1 medications such as semaglutide or tirzepatide when medically appropriate.
Compliance & Patient Safety
With safety and ethics at the heart of everything we do, we’re here to help you take the next confident step in your weight loss journey.