Doctor-led, personalized weight-management with FDA-approved GLP-1 options (Ozempic, Wegovy, Zepbound, Mounjaro). Most visits covered by insurance — we verify your benefits before you pay anything.
Real Long Island patient transformations from our physician-supervised practice.
*Individual results may vary.
If any of the following sound like you, you may be a candidate for our physician-supervised program at our Smithtown, NY clinic.
Don't know your BMI? Your doctor will calculate it at your first visit.
Especially with related conditions like diabetes, high blood pressure, or sleep apnea.
Weight loss is biological, not willpower. A doctor-led plan is different.
In-person visits with a board-certified physician on Long Island — not an app.
Interested in Ozempic, Wegovy, Zepbound or Mounjaro under real medical supervision.
GLP-1 medications (semaglutide and tirzepatide) can be a powerful tool when prescribed and monitored by a physician. At LIWLI Smithtown, treatment is always in-person, doctor-led, and paired with ongoing supervision — never a sketchy online compounder.
GLP-1 medications help regulate hunger signals, making it easier to stick to a healthy plan.
We prescribe FDA-approved medications — not compounded versions from online-only sellers.
Every dose, side effect and adjustment is monitored by a board-certified doctor in Smithtown.
In-person labs, dose titration, and side-effect management — the safe way to use GLP-1.
Four simple steps — guided by a physician from day one.
Call us or fill out the short form. We'll verify your insurance benefits before your visit.
Full medical evaluation, health history, and body composition analysis at our Smithtown office.
Your physician designs a treatment plan — including GLP-1 if appropriate — tailored to you.
Regular in-person visits to adjust your plan, track progress, and keep results lasting.
Dr. Michael S. Kaplan, DO founded the Long Island Weight Loss Institute and developed our individualized, physician-led protocols. At LIWLI Smithtown you're seen by a real, local, board-certified physician — not a national telehealth chatbot.
We participate with most major insurance carriers on Long Island. Our Smithtown office verifies your benefits before your first visit — so you know your costs up front and there are no surprises.
Your initial consultation is free. Most ongoing visits are covered by insurance — here's what to expect.
If your plan participates with LIWLI.
*Must be a participating insurance plan. Call for details.
Simple flat pricing. No membership required.
"I finally feel like someone is actually treating me — not just handing me a script. Down 28 lbs and off my BP med."
"Insurance actually covered my visits. Dr. Kaplan's team explained everything about GLP-1 and my side effects were minimal."
"Tried Noom, tried keto, nothing stuck. Weekly in-person visits changed everything. I trust this practice."
"Being able to walk into a real Smithtown office and see a real doctor made me take it seriously. Life-changing."
*Individual results may vary.
Free consultation. Insurance verified up front. Real board-certified doctors — right here on Long Island.
Serving Smithtown, Commack, St. James, Nesconset, and all of Suffolk County.