Live Awesome. Live Strong. Live Smart.

Physician-led Weight Loss Therapy, Bioidentical Hormone Replacement Therapy (BHRT), and Peptide Treatments in St. Petersburg.

Physician-Led Weight Loss & Hormone Therapy in

St. Petersburg, FL

Our Mission

At WeightSmartMD, your health is our primary focus. Every program is physician-led, ensuring your treatments are personalized, safe, and effective. We are dedicated to helping patients regain confidence, energy, and vitality through compassionate, evidence-based care.

Woman's feet on scale showing her weight

Medical Weight Loss Therapy

Looking slimmer never felt this good.


GLP-1 medications (Semaglutide, Tirzepatide; Retatrutide coming soon), appetite suppressants (Phentermine, Diethylpropion, Phendimetrazine)

Explore Weight Loss Therapy

Bioidentical Hormone Replacement Therapy for Women (Pellets)

Mood swings, restless nights, and low energy are often signs of hormone imbalance. Our pellet-only BHRT program helps restore balance so you can feel like yourself again.

Explore BHRT for Women

Testosterone Replacement Therapy (TRT) for Men

Restore energy, confidence, and performance with physician-led TRT. Choose injections or long-acting pellets.

Explore TRT for Men

Peptide Therapy (Growth Hormone Peptides)

Support anti-aging, metabolism, recovery, and vitality with physician-led peptide programs.

CJC-1295, Ipamorelin, Sermorelin, NAD+

Explore Peptide Therapy

Explore Our Physician-Led, Weight Loss Services

Bare feet standing on a digital scale on a wooden floor. Sunlight casts a shadow across the scene.

Medical Weight Loss Therapy


Looking slimmer never felt this good. We provide access to powerful GLP-1 medications such as semaglutide and tirzepatide, along with FDA-approved appetite suppressants. Every treatment plan is adjusted to your body’s needs, not a one-size-fits-all approach.

Explore Weight Loss Therapy
A blue folder labeled

Bioidentical Hormone Replacement Therapy for Women


Mood swings, restless nights, and low energy often point to hormonal imbalance. Our pellet-only Bioidentical Hormone Replacement Therapy program restores balance with steady, natural hormone levels—helping women feel like themselves again.


Explore Bioidentical Hormone Replacement Therapy for Women
Smiling Asian man with glasses, wearing a black shirt, indoors.

Testosterone Replacement Therapy for Men


Fatigue, low motivation, and reduced performance are common signs of low testosterone. Our Testosterone Replacement Therapy programs offer injections or long-acting pellets to restore energy, confidence, and vitality.


Explore Testosterone Replacement Therapy for Men
Dropper with clear liquid, a single drop about to fall. Light background.

The WeightSmartMD Difference

Why Choose WeightSmartMD?

Physician-led care, focused expertise, and transparent pricing. GLP-1 dosing adjusted to your response (no gimmicky ‘intro’ pricing). Women’s pellets $325 (same pellets many clinics charge $400+ for). Testosterone Replacement Therapy injections $75; initial consults under $50.

The WeightSmartMD Difference

Why Choose WeightSmartMD?

Physician-led care, focused expertise, and transparent pricing. GLP-1 dosing adjusted to your response (no gimmicky ‘intro’ pricing). Women’s pellets $325 (same pellets many clinics charge $400+ for). Testosterone Replacement Therapy injections $75; initial consults under $50.

Im super grateful to have found Dr. Roberts and his team. Everyone is so professional with a personable and caring touch. You immediately know that you are in good hands.


- Scott P.

Weight Smart, is an excellent Weight Management Program. The girls in the office Kristen and Shelly are great cheerleaders, they're on your journey with you!!

Physician Mark A. Roberts, M.D, is always there for any medical concerns.


- Geri C.

Dr.Roberts and staff are wonderful ! They have helped me understand the changes in my body since starting menopause & supported & encouraged me in my weight loss . Thank you all so much !


- Nancy R.

Dr Roberts and his staff are wonderful! Treatments they offer are cutting edge and safe. It's easy to get an appointment too. Nice location with plenty of parking and never long wait times. Dr Roberts always takes the time to listen, which is rare these days. Overall, this place is my favorite doctors office to visit!


- Gwen T.

Get Started on Feeling Your Best

Take the first step toward restoring your health and confidence.

Office Hours:

Monday: 9:00 AM - 5:00 PM

Tuesday: 12:00 PM - 6:00 PM

Wednesday: Closed

Thursday: 12:00 PM - 7:00 PM

Friday: 9:00 AM - 2:00 PM

Saturday & Sunday: Closed

At WeightSmart MD, your health and confidence are our top priority. Located in the heart of St. Petersburg, Florida, our clinic is dedicated exclusively to medical weight loss therapy, bioidentical hormone replacement therapy (BHRT), testosterone replacement therapy (TRT), and peptide therapy. Every program is directed by Dr. Mark Roberts, ensuring you receive personalized care that is safe, evidence-based, and designed for lasting results.

Whether you’re struggling with stubborn weight, low energy, hormone imbalance, or age-related changes, our mission is simple: to restore your vitality and help you feel like yourself again.

About the Physician

Dr. Mark Roberts is a licensed medical doctor with decades of clinical experience. He founded WeightSmart MD to give patients a safe, physician-led alternative to generic weight loss programs and med spa add-ons. Dr. Roberts specializes in hormone therapy, weight management, and peptide treatments that help patients regain energy, confidence, and health.

Why Patients Choose Our Clinic to Lose Weight

Many clinics treat weight loss and hormone therapy as side add-ons. At WeightSmart MD, this is our entire focus.

Direct Physician Care

Every consultation, treatment, and follow-up is led by Dr. Roberts.

Transparent, Affordable Pricing

We publish our rates upfront:

  • Women’s pellets: $325 (the same pellets many clinics charge $400+ for)
  • TRT injections: $75
  • Initial consultations: under $50
  • GLP-1 medications: dosing tailored to your body, never underdosed with gimmicky “intro pricing”

Personalized Programs

Your treatment evolves as your body responds. We track progress with labs, history, and follow-ups—never cookie-cutter care.

Why Patients Choose Our Clinic to Lose Weight

Many clinics treat weight loss and hormone therapy as side add-ons. At WeightSmart MD, this is our entire focus.

Direct Physician Care

Every consultation, treatment, and follow-up is led by Dr. Roberts.

Transparent, Affordable Pricing

We publish our rates upfront:

  • Women’s pellets: $325 (the same pellets many clinics charge $400+ for)
  • TRT injections: $75
  • Initial consultations: under $50
  • GLP-1 medications: dosing tailored to your body, never underdosed with gimmicky “intro pricing”

Personalized Programs

Your treatment evolves as your body responds. We track progress with labs, history, and follow-ups—never cookie-cutter care.

The WeightSmart MD Mission

To restore health, confidence, and vitality through physician-led, personalized care.

Our Core Values

Safety

Every therapy is prescribed and monitored directly by Dr. Roberts for your well-being.

Results

We use evidence-based therapies that deliver measurable progress.

Compassion

We treat the person, not just the numbers on a scale or lab report.

Innovation

We bring the latest science in weight management and hormone health to your care plan.

Start Your Weight Loss Journey Today

Take the first step toward restoring your health and confidence. Call our St. Petersburg clinic or request an appointment online today. At your first visit, you’ll meet directly with Dr. Mark Roberts to review your health history, medications, and goals, followed by targeted labs (as needed) to guide care. We’ll discuss the best path for you—whether that’s GLP-1 medical weight loss (semaglutide or tirzepatide), pellet BHRT for women, TRT (injections or pellets) for men, or peptide therapy (CJC-1295, ipamorelin, sermorelin, or NAD+). 

You’ll leave with a clear, step-by-step plan that includes dosing, follow-ups, and transparent pricing—no gimmicks or underdosed “starter” kits. Most patients begin with conservative dosing and titrate based on results, ensuring safe, physician-led progress at our St. Petersburg clinic.

WeightSmart MD

📍 65 66th St N, Saint Petersburg, FL 33710

📞 727-343-9100