Medical Weight Loss Program

The New York Bariatric Group has a unifying philosophy that considers the patient's wishes when creating a comprehensive weight loss plan. We see each component of weight loss as a tool, and we aim to apply the right tool to accomplish the goal. By offering medication, gastric balloons, and surgical options, each patient can rest assured that they are receiving the best approach to help them achieve their goal of being healthier. Our physicians utilize the latest evidence-based techniques to benefit our patients with the most up-to-date treatments.

Using our onsite nutritionists and psychologists, we can create a comprehensive, medically supervised weight loss program tailored to the patient’s individual needs. We offer several different options. For patients who seek rapid weight loss, we utilize carefully developed nutrition products to implement a very low-calorie diet. This diet usually lasts 8 weeks and is an induction phase to jumpstart weight loss. Once complete, our nutritionists help craft an eating regimen for continued weight loss.

Our Medical Weight Loss Program is a Sustainable Approach to Lasting Results with Nutrition, Exercise, and Medication

For patients looking for slower, sustainable weight loss, we devise a diet regimen to help patients permanently alter how they approach food. Using the most recent scientific research on habit change, we will help patients develop a sustainable eating program complemented by an exercise program.

Our comprehensive Medical Weight Loss in NYC, Long Island, New Jersey & various convenient locations throughout New York & Connecticut incorporates a physician specializing in medication for weight loss, nutritional guidance, behavioral support, and expert fitness assistance. This combination will help ensure all patients receive the right help to reach their weight and personal goals.

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Ease of Access

To make it convenient, The New York Bariatric Group has developed a virtual healthcare portal and iPhone/Android app with the ability to make your appointments with the nutritionist and psychologist. You can have a one-on-one video nutrition session on your phone or computer from the comfort of your home. There are also live streaming nutrition and fitness classes as well as an extensive library of prerecorded videos.

Our comprehensive programs can help you work to achieve your weight loss goals.

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Weight Loss Medications

Semaglutide (Wegovy)

Wegovy is a brand name for Semaglutide, an effective weight management medication for overweight or obese adults. These injections are administered once a week and work by mimicking the effects of a hormone known as glucagon-like peptide-1 (GLP-1), which is responsible for regulating appetite and food intake.

Learn more about Semaglutide


Another brand of Semaglutide, Ozempic, is FDA-approved for patients with a BMI (body mass index) of 30 or higher. It is also an option for patients with a BMI of 27 or greater, provided they have at least one weight-related condition, such as high blood pressure, type 2 diabetes, or high cholesterol. It is most effective with a healthy lifestyle (a reduced-calorie diet and regular physical activity).

Learn more about Ozempic


Saxenda is a brand name for liraglutide, a medication that aids overweight or obese adults in managing their weight. This medication is administered by injection daily and mimics the effects of the hormone glucagon-like peptide-1 (GLP-1), which controls appetite and food intake. It is typically recommended for patients with a BMI of 30 or greater. Those with weight-related issues, such as high blood pressure or type 2 diabetes, can have a BMI as low as 27.

Learn more about Saxenda


Multiple studies have found that Mounjaro, another brand of Tirzepatide, can aid patients in losing significant amounts of weight over some time. One clinical trial found that patients who took Mounjaro lost an average of 15% of their body weight, compared with only 2.4% in the placebo group.

Learn more about Mounjaro


Qsymia is another prescription weight loss medication with two active ingredients: phentermine and topiramate. Phentermine is a stimulant that works by suppressing the patient’s appetite. Topiramate is what’s known as an anticonvulsant medication, which both reduces appetite and makes the patient feel full sooner. 

Learn more about Qsymia


Orlistat is a medication that can help overweight and obese individuals get a handle on weight management. Its primary function is to prevent fat absorption in the digestive tract, reducing calorie intake and increasing weight loss. 

Learn more about Orlistat


Contrave is a combination of two active ingredients: bupropion and naltrexone. Bupropion is an antidepressant medication that tapers one’s appetite. Naltrexone is a medication used to treat addictions (and can also reduce the patient’s food cravings).

This medication is FDA-approved for patients with a BMI of 30 or higher or a BMI of 27 or higher with a condition related to their weight. The treatment is most effective when combined with a healthy lifestyle. 

Learn more about Contrave


Plenity works by expanding the stomach and small intestine, making the patient feel full and reducing their appetite. This treatment is approved for patients with a body mass index of 25 to 40 and struggling to lose weight. 

Multiple clinical studies have found that Plenity effectively achieves weight loss over time. One clinical trial found that, on average, patients who took Plenity saw a 6.4% reduction in body weight, while the placebo group only had a reduction of 4.4%. 

Learn more about Plenity


Zepbound is a tirzepatide injection that operates by targeting certain chemicals in your brain that regulate appetite. When you take Zepbound, it acts to suppress your hunger, which can lead to a reduced calorie intake. It's important to note that Zepbound is most effective when you also adhere to a healthy eating plan and stay active.

Learn more about Zepbound

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Meet Dr. Leon Katz

Dr. Katz oversees Medical Weight Loss in NYC, Long Island, New Jersey & various convenient locations throughout New York & Connecticut at New York Bariatric Group. He is an established leader in the field. He has educated surgeons from around the world on the topic of robotic bariatric surgery and the use of weight loss medications to assist patients suffering from the disease of obesity. He has built multiple bariatric surgery programs and served as director of metabolic weight loss surgery.

Dr. Katz brings his knowledge and passion to helping patients struggling with obesity. He offers bariatric endoscopy and comprehensive Medical Weight Loss options to assist patients who may not qualify for surgery or are interested in a non-surgical option. He believes that a team approach is necessary to address obesity successfully.

Dr. Katz is a Diplomate of the American Board of Obesity Medicine (DABOM), Fellow of the American College of Surgeons, and Fellow of the American Society of Metabolic and Bariatric Surgery.

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Our dedicated dieticians are expertly equipped in dealing with patients specifically trying to lose weight with dietary changes and the use of medication. New York Bariatric Group dieticians tailor a patient specific program using metabolic testing to assess the metabolic rate and the appropriate daily caloric consumption needed to lose weight.

New York Bariatric Group nutrition is led by Sharon George. She is one of the most experienced bariatric nutritionists in the country. She thrives on helping patients with obesity to reach their weight loss goals.