Verified profile · Long Island, NY
No BS · no spa pays to rankMedical Spa in Long Island, NY
Profile reviewed by No BS Med Spa Reviews Editorial Team · Updated 2026-07-11
Our composite score from 6 weighted data signals.
4.8/5 stars
261 reviews (log-normalized)
100% of recent reviews in last 12 months
100% positive across 5 reviews
8/8 data points verified
verified via Google Places API
Long Island Weight Loss Institute in Long Island, NY specializes in weight loss services designed to help patients achieve their health goals through medical supervision. The practice is rated 4.8 stars across 230 reviews, reflecting strong patient satisfaction. Patients seeking medical weight loss programs in Long Island frequently consider Long Island Weight Loss Institute.
Long Island Weight Loss Institute is a medical spa serving Long Island, NY offering medically supervised weight loss. It operates out of 5225-15 Nesconset Hwy Building 2, Port Jefferson Station, NY, 11776. Like most medical spas, treatments are performed in a clinical yet comfortable setting, and weight loss are tailored to each client during the visit. With 261 reviews averaging 4.8 stars, satisfaction here runs notably high. Pricing sits in the mid-range tier. Here, care is physician-led. Reach out to confirm availability, current pricing, and provider credentials before your visit.
See the best-rated med spas in Long Island, NY →
Long Island Weight Loss Institute ranks via our priority score (rating × log of review count), which favors providers with both high satisfaction and substantial review volume. See how we rank.
Rating distribution
Long Island Weight Loss Institute holds a 4.8/5 overall rating across 261 patient reviews. The distribution below reflects 5 analyzed reviews.
Editorial audit
We evaluated Long Island Weight Loss Institute across 12 verified data points before listing. Read our research methodology →
Verified reviews sourced from Google. 5 most recent shown.
The staff is courteous and professional. Christine is very knowledgeable and understanding about the whole weight loss process she is an inspiration as well as a power of example. I have recommended li weight loss to several coworkers and family all are having positive results.
Laurie is friendly concise and quick to help you get started with your journey with a GLP-1. The staff from the front desk, body scan check in, and usher to the other building are friendly and approachable. I was hesitant about using GLP-1s and their staff was able to reassure my decision while still respecting my thoughts and opinions about taking them. I highly recommend their office for those who are looking to improve their health. Thank you, LIWLI!
Marisa has made my weight loss journey effortless. She is knowledgeable and has empathy but the best part if she is non-judgmental! She sets me up for success!
The Bot answering service can be annoying but once you get to speak to the office things get better. The front desk and scheduling are pleasant and professional. I met with Christine Petras for a consultation and she was very thorough in discussing weight loss. I learned some things about a proper diet and some misconceptions of dieting. I'm looking forward to losing weight and getting healthy.
I have been going to the Long Island Weight Loss Institute for years. I love Dr. Kaplan and his staff. Everyone is so knowledgeable and helpful. They listen to my concerns and have help me not only loose the weight but keep it off. I highly recommend if you want to loose weight and keep it off to give them a call. Donna Dombkowski
Review analysis
AI-assisted analysis using Anthropic Claude Haiku 4.5 — every theme below was derived from the original Google reviews shown below this section, which you can verify yourself.
Strengths analysis
Based on which treatments are mentioned most often in patient reviews and how those reviews are rated, Long Island Weight Loss Institute is strongest in Semaglutide — mentioned 1 time with an average rating of 5.0/5.
“Laurie is friendly concise and quick to help you get started with your journey with a GLP-1. The staff from the front desk, body scan check in, and usher to the other building are friendly and…”— Sara Dis, 5-star review
We count which treatments appear in each spa’s public Google reviews using a curated synonym map (e.g. “Botox” also matches “Dysport”, “Xeomin”). Ratings are the reviews’ own star scores — we do not adjust them. Empty services mean no reviews mentioned them yet. See full methodology →
Five aspects we score for every spa with reviews on file. Each citation below is a verbatim quote from the actual reviews — you can verify any of them in the Recent Reviews section.
“The staff from the front desk, body scan check in, and usher to the other building are friendly and approachable.”
“The Bot answering service can be annoying but once you get to speak to the office things get better.”
“I have been going to the Long Island Weight Loss Institute for years... Everyone is so knowledgeable and helpful... have help me not only loose the weight but keep it off.”
Sub-ratings are produced by Anthropic Claude Haiku 4.5 reading the spa’s public Google reviews. Each citation is verbatim — we do not paraphrase. If an aspect was rarely mentioned, we default to 3 (neutral) and leave the citation blank. Read methodology →
Citations
Last updated Jun 20, 2026 · How we source data →
Services include Weight loss service.
Plan on a consultation to kick things off covering your medical history and weight goals, sometimes with labs. A physician-led provider reviews whether a medically supervised plan — which may include GLP-1 medication titrated over time — is a fit, and sets up the follow-up cadence to monitor progress safely. Come prepared with questions about results, downtime, and pricing, and don't hesitate to confirm that a licensed provider will perform your treatment.
Many med spas in Long Island offer financing through Cherry, Affirm, or CareCredit, which let you spread treatment costs over fixed monthly payments. Ask Long Island Weight Loss Institute during your consultation which plans they accept and whether interest-free terms are available.
Financing terms vary by provider and approved credit. Bring your questions about deposits, APR, and prepayment options to your initial consultation so you can compare totals across weight loss service packages in Long Island, NY.
| Monday | 9:00 AM – 5:00 PM |
| Tuesday | 9:00 AM – 7:00 PM |
| Wednesday | 9:00 AM – 5:00 PM |
| Thursday | 9:00 AM – 7:00 PM |
| Friday | 9:00 AM – 3:00 PM |
| Saturday | 9:00 AM – 2:00 PM |
| Sunday | Closed |
5225-15 Nesconset Hwy Building 2, Port Jefferson Station, NY, 11776, Long Island, NY
Long Island Weight Loss Institute provides weight loss from its location in Long Island, NY. It averages 4.8 stars from 261 reviews; it falls in the mid-range on cost. Among its noted features are physician oversight. Verify offerings and availability with the spa before your visit.
We forward your request to Long Island Weight Loss Institute. Free, no obligation — and we never sell your place in line.
Long Island Weight Loss Institute is located at 5225-15 Nesconset Hwy Building 2, Port Jefferson Station, NY, 11776 in Long Island, NY.
You can reach Long Island Weight Loss Institute at (631) 509-3516.
Long Island Weight Loss Institute offers weight loss service. Contact the provider directly for current service availability and pricing.
Long Island Weight Loss Institute has a 4.8/5 star rating based on 261 aggregated patient reviews.
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Editorial integrity
We evaluated 8 data points before listing Long Island Weight Loss Institute. We never accepted payment from this business — they earned this listing through our methodology.
See how we research →Data sourcing: Business information is sourced from public business records. Ratings reflect aggregated patient reviews. See how we verify, how we rank, and methodology.