“We’re looking for innovative ways to both treat and prevent obesity — including creating healthier environments and designing programs for whole families.”

David Arterburn, MD, MPH
Kaiser Permanente Washington Health Research Institute Senior Investigator
Washington Permanente Medical Group, Internal Medicine

Research overview

“Obesity is the number-one health problem in the United States because it negatively affects our population’s health more than any other condition,” said Kaiser Permanente Washington Health Research Institute Senior Investigator David Arterburn, MD, MPH. Kaiser Permanente Washington researchers are doing practical research to learn how doctors, patients, families, employers, and policymakers can best work together to prevent and treat obesity.

“We’re focusing on three ways to halt the obesity epidemic,” said Senior Investigator Dori Rosenberg, PhD, MPH. “We’re helping to change obesity-promoting environments, bringing evidence-based prevention and treatment programs into health care systems, and helping people develop lifelong healthy diet and activity habits.”

Kaiser Permanente Washington obesity research areas include:

  • reducing sedentary behavior and promoting physical activity and healthy diet in various age groups, populations with chronic conditions, and families;
  • shared decision making to help patients find the best way to a healthy weight;
  • implementing health coaches in primary care to support behavior changes;
  • social networks that support lifestyle change programs;
  • relationships between medications and genetic factors in developing obesity;
  • health system, community, and national policies that address obesity;
  • relationships between obesity and depression, diabetes, and other conditions; and
  • long-term benefits and risks of bariatric (weight loss) surgery.

“Obesity is caused by many factors, so at Kaiser Permanente Washington, we’re working on many levels,” said Paula Lozano, MD, MPH, a senior investigator and Kaiser Permanente Washington’s assistant medical director for preventive care. “We’re improving health care to help people who are obese now. But since obesity is a societal problem, we’re also studying how to change our homes and workplaces and neighborhoods to create more healthy environments.”

Recent publications on Obesity

Lewis KH, Argetsinger S, LeCates RF, Zhang F, Arterburn DE, Ross-Degnan D, Fernandez A, Wharam JF Risk of Incident Cardiovascular Events Following Roux en Y Gastric Bypass versus Sleeve Gastrectomy: A Claims-Based Retrospective Cohort Study 2026 Mar;283(3):459-468 doi:10.1097/SLA.0000000000006507. doi: 10.1097/SLA.0000000000006507. Epub 2024-08-23. PubMed

Haneuse S, Benz L, Smith VA, Arterburn D, Maceijewski ML Long-term cardiovascular outcomes following bariatric surgery: Reconciling seemingly conflicting evidence 2026 Jan 21 doi: 10.1097/EDE.0000000000001952. Epub 2026-01-21. PubMed

Patti ME, Hu B, Kirschling S, Wang HJ, Foster K, Sarig Y, Simonson DC, Wolfs D, Arterburn D, O'Brien MJ, Vernon AH, Jakicic JM, Laffel L, Ojukwu S, Kashyap SR, Aminian A, Schauer PR, Cummings DE, Gourash WF, Courcoulas A, Kirwan JP Effect of Social Vulnerability on Efficacy of Bariatric Surgery Versus Medical and Lifestyle Intervention for Type 2 Diabetes: Analysis of the ARMMS-T2D Consortium of Randomized Trials 2026 Jan 20 doi: 10.7326/ANNALS-24-01882. Epub 2026-01-20. PubMed

Arterburn DE, Wellman R, Courcoulas A, Anau J, Hsu C, Tavakkoli A, Fischer GS, Ahmed B, Eavey J, Luce C, Williams N, Stilwell D, Paul K, Daigle CR, Elwyn G, McTigue KM Enhancing Shared Decision-Making in Metabolic and Bariatric Surgery: A Multi-System Implementation and Evaluation 2025 Dec;11(6):e70091. doi: 10.1002/osp4.70091. Epub 2025-12-05. PubMed

Benz L, Mukherjee R, Wang R, Arterburn D, Fischer H, Lee C, Shortreed SM, Haneuse S Adjusting for Selection Bias Due to Missing Eligibility Criteria in Emulated Target Trials 2025 Nov 4;194(11):3126-3139 doi:10.1093/aje/kwae471. doi: 10.1093/aje/kwae471. Epub 2024-12-26. PubMed

Researchers in Obesity

David E. Arterburn, MD, MPH

Senior Investigator
David.E.Arterburn@kp.org

Curriculum vitae (CV)

Allen Cheadle, PhD

Senior Investigator, KPWHRI; Senior Research Associate, CCHE
206-287-4391
Allen.D.Cheadle@kp.org

Curriculum vitae (CV)

Andrea J. Cook, PhD

Senior Biostatistics Investigator
206-287-4257
Andrea.J.Cook@kp.org

Curriculum vitae (CV)

Maricela Cruz, PhD

Associate Biostatistics Investigator
206-287-2878
Maricela.F.Cruz@kp.org

Curriculum vitae (CV)

Nicole M. Gatto, PhD, MPH

Principal Collaborative Scientist
Nicole.M.Gatto@kp.org

Curriculum vitae (CV)

Beverly B. Green, MD, MPH

Senior Investigator
206-287-2997
Bev.B.Green@kp.org

Curriculum vitae (CV)

Mikael Anne Greenwood-Hickman, MPH

Senior Collaborative Scientist
(206) 287-2908
Mikael.Anne.Greenwood-Hickman@kp.org

Curriculum vitae (CV)

Paula Lozano, MD, MPH

Senior Investigator; Director, ACT Center
206-287-2113
Paula.Lozano@kp.org

Curriculum vitae (CV)

Dori E. Rosenberg, PhD, MPH

Senior Investigator
206-287-2532
Dori.E.Rosenberg@kp.org

Curriculum vitae (CV)

Gregory E. Simon, MD, MPH

Senior Investigator
Gregory.E.Simon@kp.org

Curriculum vitae (CV)