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Long Island Weight Loss Institute

Medical Spa in Long Island, NY

Current as of May 2026·Reviewed quarterly by editorial team

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: $$.
4.5
out of 5
No BS Med Spa Reviews Editorial Score

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

See full methodology →

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

Phone
(631) 509-3516
Website
liwliportjefferson.com
Price Range
$$

Ratings & Reviews

4.8
out of 5
261
patient 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 address
    not on file
  • Phone number
    (631) 509-3516
  • Real website (not directory URL)
    liwliportjefferson.com
  • Aggregate rating
    4.8/5
  • Patient review volume
    261 reviews
  • Recent review text
    5 most recent on file
  • Service inventory
    1 services documented
  • Operating hours
    7/7 days documented
  • MSD Editorial Score
    4.5/5
  • Sentiment analysis
    100% positive across 5 reviews
  • Editorial team notes
    pending editorial visit
  • Contributor experiences
    0 on file
  • Service strength analysis
    strongest in Semaglutide (1 services detected)
  • Editorial sub-ratings
    5 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.

★★★★★Thomas Passariello

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.

★★★★★Sara Dis

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!

★★★★★Arlene Clausen

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!

★★★★★John Fragale

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.

★★★★★Anthony Dombkowski

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.

100% positiveacross analyzed reviews

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 summarization

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.

  • Semaglutide★★★★★5.0/5 · 1 mention
    100% 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 Claude

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.

  • Staff & bedside manner
    Friendliness, attentiveness, communication.
    5.0
    of 5
    The staff from the front desk, body scan check in, and usher to the other building are friendly and approachable.
  • Cleanliness
    Facility appearance, hygiene, equipment care.
    3.0
    of 5
  • Pricing transparency
    Were prices communicated clearly up front?
    3.0
    of 5
  • Wait times
    Punctuality and scheduling experience.
    4.0
    of 5
    The Bot answering service can be annoying but once you get to speak to the office things get better.
  • Results quality
    Did treatments work? Naturalness and longevity.
    5.0
    of 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.

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

Monday9:00 AM – 5:00 PM
Tuesday9:00 AM – 7:00 PM
Wednesday9:00 AM – 5:00 PM
Thursday9:00 AM – 7:00 PM
Friday9:00 AM – 3:00 PM
Saturday9:00 AM – 2:00 PM
SundayClosed

Venues nearby

Browse all med spas in Long Island

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.