Obesity Research Institute
The Geisinger Obesity Institute (GOI) seeks to enhance the quality and quantity of research related to obesity within Geisinger by providing a system-wide focal point for all researchers, clinicians and trainees interested in the issues related to obesity and by establishing the necessary resources to support obesity research in epidemiology, clinical research and translational and molecular research.
Lead investigators:
- Christopher Still, DO
- Lisa Bailey-Davis, DEd, RD
- Peter N Benotti, MD
Maternal & pediatric research

Our research focuses on the genetic, environmental, social and behavioral contributors to obesity.
Adult obesity

Bariatric surgery

A gold-standard bariatric research biobank
The Geisinger Obesity Institute is uniquely positioned to explore the countless benefits of surgical weight loss. Beginning in 2004, a prospective, robust bariatric registry has been supported by data from the electronic health record, patient reported results, and a vast biobank of patient samples including blood, serum, liver, adipose, stool, stomach, and jejunum. The registry is one of the largest and most expansive in the world, including data and samples from over 6,000 research consented patients with excellent long-term follow-up (80% at 4-years after surgery). This bariatric research cohort is recognized globally as a gold standard for bariatric research and has been used within >50 peer reviewed research publications.
Diabetes Risk Calculator
Our team created this tool to help prediabetic patients (A1c of 5.7 – 6.4) understand their risk of developing Type 2 diabetes in the next three years.
The calculator provides personalized risk assessment and guidance to reduce your risk with weight loss.
Get-2-Goal Application
Get-2-Goal is a tool created by our team to assist current, future, and prospective patients with weight management after Roux-en-Y Gastric Bypass Surgery.
How can Get-2-Goal help me?
- Provides personalized weight goals using years of trends and data that have been collected by Geisinger
- Allows for tracking weight over time
- Calculates probability of surviving the procedure and probability of resolving diabetes (for diabetes patients) based on information entered in your personal profile
- For prospective patients: Displays trends of expected weight loss over time after surgery
NOTE: The personalized goals presented in this app are based on Geisinger research and standards. Goals may vary between hospital systems.

In the media
