GANV Health & Wellness Services

Welcome to GANV Health & Wellness Services, a division of Gastroenterology Associates of Northern Virginia dedicated to helping patients lose weight fast, safely and sustainably. Our team of obesity experts are here to help you increase energy, improve confidence, and help you reduce risks of developing additional diseases and conditions such as cardiovascular disease, hypertension, diabetes and sleep apnea! 

Utilizing the latest clinical techniques, our endoscopic weight loss experts, Dr. Jeremias Tan and Dr. Ivan Harnden can help you reduce medications, decrease GERD symptoms and/or fit into a smaller dress size before the wedding. We have done the research for you and worked diligently to develop a series of customizable programs to ensure you learn how to lose weight and keep it off, for life! Let our team help you through your weightloss journey so you too can begin winning at weightloss. 

To get started simply call 703-776-1777 or email our Nurse Concierge, Angela Green, LPN directly at

Although many patients seek bariatric surgery or weight loss surgery as a first approach to losing weight, we invite you to consider learning more about our convenient, out-patient, private and non-surgical weight loss options. Each of our services include a customized nutrition education and lifestyle modification program designed to support your specific wellness needs.

Our services include: 

Patients diagnosed with obesity are at an increased risk of developing heart disease, arthritis, hypertension, fatty liver disease, urinary stress incontinence, high cholesterol, diabetes, acid reflux disease and many other health conditions.

Use our BMI Calculator to learn if the build-up of excessive body fat in your bloodstream is a health risk for you. Body Mass Index (BMI) is a ratio of your height and weight. 

If your BMI is between 25 and 30, then you are considered overweight
If your BMI is between 30 and 40, then you are considered obese.
If your BMI is greater than 40, you are considered morbidly obese

Click here to sign up for your Free Nurse Concierge Consultation and learn more about our Summer Specials.