Samuel Klein

Samuel Klein, MD

Specializes In
  • Weight Loss
Referral Type

Professional Consultation Only

Languages Spoken
  • English


Sees Patients For

Obesity, nutrition, weight management, gastroenterology, metabolism

Hospital Affiliations

  • Barnes-Jewish Hospital


Board Certifications

  • Gastroenterology
  • Internal Medicine
  • Nutrition

Academic Title(s)

William H. Danforth Professor of Medicine and Nutritional Science
Director, Center for Human Nutrition
Chief, Division of Geriatrics and Nutritional Science
Director, Center for Applied Research Sciences
Director, Weight Management Program

Publications & Research

View research profile »



1984 Massachusetts Institute of Technology, Cambridge, MA

Medical Degree

1979 Temple University Medical School, Philadelphia, PA


1974 Brandeis University, Waltham, MA

Financial Disclosures
  • Merck
    • Consulting/Advisory Board: $10,000 - $19,999
    • Reporting Date: 05/01/2024
  • Sansum Diabetes Research Institute
    • Consulting/Advisory Board: $150,000 - $199,999
    • Reporting Date: 05/01/2024

Washington University and its physicians and health professionals are committed to ensuring integrity and objectivity in medical decision-making. Some of our physicians and health professionals work collaboratively with pharmaceutical, medical device or other medical care related companies to develop innovative ideas and products that can improve health care delivery and clinical outcomes for patients. In some instances, our physicians and health professionals have an ownership or potential ownership interest in a commercial company; and/or are paid by a commercial company to provide advice on product design or to speak about the use of medications, devices, equipment or procedures. These payments may include: a) compensation for consulting and speaking engagements, b) equity, and/or c) royalties for products invented by our faculty. Any payments to Washington University physicians or health professionals must be based on tangible services and may not exceed fair market value for their work. In addition to disclosure on this website, physicians and health professionals earning more than $10,000 per year must disclose their corporate financial relationship in writing to patients when prescribing or using that company's products.

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