San Marcos Medical Weight Loss Clinic
San Marcos medical weight loss clinic offering Semaglutide, Tirzepatide, and physician-guided programs designed for safe, sustainable results.

Medical Weight Loss
Weight Loss Center in San Marcos, CA
TrimBody M.D. offers medically supervised weight loss programs in San Marcos, CA designed to support lasting health and sustainable results, with patients in structured programs commonly losing 1–3 lbs per week, depending on adherence and metabolic factors.
For patients searching for trusted weight loss San Marcos programs, our team develops personalized plans that address stubborn fat, hormonal imbalance, and metabolic health challenges.
Our San Marcos clinic uses advanced diagnostic tools and physician-led programs to create treatment plans tailored to each patient. Many patients consider us the best weight loss clinic San Marcos offers because of our medical oversight and long-term support model.
From your first consultation through follow-up care, TrimBody M.D. supports every step of your weight loss journey. Schedule your consultation today and start working toward a healthier future.
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Patient Results
The Best Weight Loss Clinic in San Marcos, CA
TrimBody M.D. provides advanced medical weight loss treatments in San Marcos, CA designed to support safe, sustainable results. Our physician-guided programs use modern treatments and personalized plans tailored to each patient’s health goals.
Another of the leading medications we offer is Semaglutide, which, through mimicking the hormone GLP-1, controls appetite and blood sugar levels, thereby making calorie reduction and thus weight loss easier to implement.
Semaglutide (2.4 mg) is highly effective for weight management, with clinical trials (STEP program) showing participants lost an average of ~15% of their body weight over 68 weeks.
Our medically supervised weight loss injections San Marcos patients receive are carefully dosed, monitored, and adjusted to maximize fat reduction while protecting overall health. Learn more about our Semaglutide injections for weight loss offered right here in San Marcos.
Clinical studies, specifically the SURMOUNT phase 3 program, have demonstrated that tirzepatide can achieve significant body weight reductions, with many participants achieving 20% or more body weight loss. We also provide a personalized Tirzepatide weight loss program in San Marcos for optimal results.
Our HCG Diet program uses the hormone HCG to reset your metabolism and take away those stubborn fats that have hampered your ability to lose weight as efficiently as you would have wished. Other services offered at the weight loss clinic are Testosterone Therapy and Hormone Replacement Therapy for individuals whose weight gain could be due to a hormonal imbalance.
Studies show that hormonal changes can directly influence appetite, fat storage, and metabolism, making hormone-related weight gain a medically recognized concern. We work to balance your body’s natural hormone levels in order to metabolize foods better and increase energy for better weight management.
Our San Marcos medical team develops individualized treatment plans designed to support lasting weight loss and improved overall health. Schedule a consultation with TrimBody M.D. and take the first step toward a healthier future.
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5-Star Experience With Every Visit
Visit TrimBody M.D. San Marcos
838 Nordahl Rd UNIT 175, San Marcos, CA 92069
Monday - Friday: 9:30 AM - 5:30 PM
Saturday: 10:00 AM - 4:00 PM





Real Patients. Real Results.
Weight Loss – Before & After Results
Medically Guided. Visibly Life-Changing.
These transformations showcase real patients who completed physician-supervised weight loss programs at TrimBody M.D. Every result reflects a personalized medical plan designed for safe, sustainable fat loss.
Board-Certified Providers
Locations TrimBody M.D.
TrimBody M.D. is the leading weight loss and anti-aging therapy center in San Marcos, CA. We offer testosterone therapy and medically supervised weight loss services to help you look better, feel better, and live longer.
Krizelle Hilahan
My name is Krizelle Hilahan, I am an Aesthetic Provider and Family Nurse Practitioner. I have been an Aesthetic Registered Nurse since 2022 and a Family Nurse Practitioner since 2025.
I attended American University of Health Sciences for my Bachelor's in Science of Nursing and United States University for my Master's in Science of Nursing.
I have received aesthetic training from Allergan Aesthetics, Evolus Academy, and in-house training from experienced aesthetic providers and mentors.
I am tremendously passionate about aesthetics and helping others in their journey towards self-love.

Krizelle Hilahan
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