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.
Long Island Weight Loss Institute
Medical Spa in Long Island, NY
Profile reviewed by No BS Med Spa Reviews Editorial Team · Updated 2026-05-19
Key Facts
- Long Island Weight Loss Institute is a medical spa located at Long Island, NY.
- Rating: 4.8/5 across 261 patient reviews.
- Phone: (631) 509-3516.
- Services: Weight loss service.
- Price range: $$.
Our composite score from 6 weighted data signals.
How we calculated this
- Google rating1.44 of 5 · weight 30%
4.8/5 stars
- Review volume0.87 of 5 · weight 25%
261 reviews (log-normalized)
- Review recency0.50 of 5 · weight 10%
100% of recent reviews in last 12 months
- Sentiment analysis0.75 of 5 · weight 15%
100% positive across 5 reviews
- Data completeness0.66 of 5 · weight 15%
7/8 data points verified
- Google Place ID verified0.25 of 5 · weight 5%
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.
Contact & Location
Ratings & Reviews
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.
14 Data Points We Evaluated
11 of 14 verified- Verified addressnot on file
- Phone number(631) 509-3516
- Real website (not directory URL)liwliportjefferson.com
- Aggregate rating4.8/5
- Patient review volume261 reviews
- Recent review text5 most recent on file
- Service inventory1 services documented
- Operating hours7/7 days documented
- MSD Editorial Score4.5/5
- Sentiment analysis100% positive across 5 reviews
- Editorial team notespending editorial visit
- Contributor experiences0 on file
- Service strength analysisstrongest in Semaglutide (1 services detected)
- Editorial sub-ratings5 aspects scored across 5 reviews
We evaluated these 14 data points for Long Island Weight Loss Institute before listing. Read our research methodology →
Recent Patient Reviews
Verified reviews sourced from Google. 5 most recent shown.
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
What our analysis found across 5 reviews
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.
What patients praise
- Knowledgeable staff who understand weight loss process
- Non-judgmental empathetic approach to patient care
- Thorough consultations with proper diet education
Concerns mentioned
- Automated phone answering service can be annoying
What this spa is strongest at
Derived from 261 reviews · No AI summarizationBased 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.
- Semaglutide★★★★★5.0/5 · 1 mention100% positive
“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 →
Editorial sub-ratings
Across 5 reviews · AI-assisted analysis using Anthropic ClaudeFive 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.
- Staff & bedside mannerFriendliness, attentiveness, communication.5.0of 5
“The staff from the front desk, body scan check in, and usher to the other building are friendly and approachable.”
- CleanlinessFacility appearance, hygiene, equipment care.3.0of 5
- Pricing transparencyWere prices communicated clearly up front?3.0of 5
- Wait timesPunctuality and scheduling experience.4.0of 5
“The Bot answering service can be annoying but once you get to speak to the office things get better.”
- Results qualityDid treatments work? Naturalness and longevity.5.0of 5
“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 →
Sources we analyzed for this listing
- 261 Google reviews
- 5 review excerpts on file
- 0 YouTube reviews found
- 0 Reddit threads referenced
- 0 first-person experiences from our contributor network
- Editorial team notes: pending visit
Last updated May 19, 2026 · How we source data →
Patient experiences from our contributor network
0 verified contributors have shared their experiences with Long Island Weight Loss Institute.
Be the first to share your experience with Long Island Weight Loss Institute.
Submit your experience →What clients love about Long Island Weight Loss Institute
- Consistently high marks for Weight loss service results
- Long track record — 261 patient reviews and counting
- Convenient Long Island location
Services & Specialties
Services include Weight loss service.
Financing Available for Weight loss service in Long Island
Many med spas in Long Island offer financing through Cherry, Affirm, or CareCredit. Long Island Weight Loss Institute can typically work with you on payment plans for treatments starting around $X. Ask during your consultation about month-by-month options.
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.
Hours of Operation
| 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 |
Venues nearby
Frequently Asked Questions
Where is Long Island Weight Loss Institute located?
Long Island Weight Loss Institute is located in Long Island, NY.
What is the phone number for Long Island Weight Loss Institute?
You can reach Long Island Weight Loss Institute at (631) 509-3516.
What services does Long Island Weight Loss Institute offer?
Long Island Weight Loss Institute offers weight loss service. Contact the provider directly for current service availability and pricing.
What is the rating of Long Island Weight Loss Institute?
Long Island Weight Loss Institute has a 4.8/5 star rating based on 261 aggregated patient reviews.
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Why Long Island Weight Loss Institute is on our list
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.