Meet Our Staff

Nicole Triefenbach, Program Manager

Nicole became a nurse in 2004 and has worked in various medical settings.  She transitioned to Washington University School of Medicine in 2015.  Nicole has a true understanding of the many life issues affected by obesity and is committed to providing our patients with exceptional compassionate care.

Samuel Klein, MD, Medical Director and Program Founder

Dr. Klein is the Danforth Professor of Medicine and Nutritional Science, Director of the Center for Human Nutrition, Chief of the Division of Geriatrics and Nutritional Science, and associate program director of the General Clinical Research Center.

He received his medical degree from Temple University School of Medicine and a master’s degree in nutritional biochemistry and metabolism from the Massachusetts Institute of Technology.

He completed his internal medicine residency at University Hospital in Boston, a clinical nutrition fellowship at University Hospital, nutrition and metabolism research fellowship at Harvard Medical School and a gastroenterology fellowship at the Mount Sinai Hospital in New York.

Dr. Klein is board certified in internal medicine, gastroenterology and nutrition. He served as President of the North American Association for the Study of Obesity and is presently involved in obesity research.

Susan Reeds, MD, FACP, Weight Management Program Physician

Dr. Reeds is Assistant Professor of Medicine at Washington University School of Medicine in St. Louis, MO.

Dr. Reeds received her medical degree from the University of Rochester in upstate New York. She remained in Rochester to complete her residency in internal medicine. She was chosen to stay on in a leadership role as Chief Resident the following year before relocating to St. Louis, MO with her husband.

Dr. Reeds had an internal medicine practice in O’Fallon, MO for 14 years before joining the faculty at Washington University School of Medicine. She became the program physician for the Weight Management Program in 2015.

In her practice, Dr. Reeds treated many overweight and obese patients and treated their associated comorbidities including diabetes, hypertension and hyperlipidemia. Having seen the increasing prevalence of obesity in her practice, she is very interested in the management of obesity and minimizing related complications.


Richard Stein, PhD, Behavioral Director

Dr. Stein is an Associate Professor of Medicine. He received his doctorate in clinical psychology from Arizona State University, and completed a fellowship at San Diego State University. He then held an academic appointment at the State University of New York at Buffalo before coming to St. Louis.

Dr. Stein’s research and clinical work has focused on developing and conducting treatments for obesity and eating disorders. He has also studied ways to help people make the most of their relationships with friends and family members to support efforts at improving health behaviors.

His work has included individual, group and family-based approaches, with an emphasis on enjoyable lifestyle changes that can be maintained in the long term.

Suzanne Bell, MS, CTRS, Behavioral Counselor

Suzanne has been working in behavioral health settings since 1991, as an administrator, client advocate, educator and therapist. She currently works as a recreational therapist at the Rehabilitation Institute of St. Louis with both the inpatient and day treatment populations. She performs group and individual work helping clients rehabilitate from conditions such as brain and spinal cord injuries.

Suzanne’s approach to recreational therapy emphasizes enhancing independent functioning, introducing leisure resources, and offering hands-on opportunities to practice healthy behaviors. She is outcome-oriented and works on individualized plans to strategize and achieve clients’ pursuit of a healthy lifestyle and personal sense of well-being.

Kathy Davis, MSW, LCSW, Behavioral Counselor

Kathy is a licensed clinical social worker skilled in group, individual and family therapy. As a behavioral group leader, she has experience in both inpatient and outpatient settings. Kathy is currently a treatment coordinator at a local inpatient center where she uses cognitive, behavioral and reality-based techniques. Additionally, she is extremely knowledgeable about the issues of nutrition and weight loss.


Beth Taylor, MS, RD, LD, CNSD, Nutritional Director, Registered Dietitian and Certified Nutrition Support Dietitian

Beth received her undergraduate degree from Ball State University in 1984 and her master’s degree at St. Louis University in 1990. In addition to working as a dietitian at the Weight Management Program, she has worked in the field of weight management since 1989 and currently works as a member of the Nutrition Support Service at Barnes-Jewish Hospital.

Mary Ellen Beindorff, RD, LD, Registered Dietitian

Mary Ellen Beindorff received her bachelor of science degree in nutrition from the University of Missouri – Columbia in 1979. Besides working as a registered dietitian at the Weight Management Program, Mary Ellen also works for Barnes-Jewish Hospital specializing in the liver and kidney transplant population. She has led various weight management classes for over 25 years, most recently for post-transplant patients.

Exercise and Fitness

Jonty Felsher, PT, Co-Owner of RPI Therapy Services

Jonty Felsher was born and raised in Johannesburg, South Africa, and moved to St. Louis in 1993.  He received his Bachelor of Science (with honors) from the University of the Witwatersrand in Johannesburg in 1990.  Together with Jonathan Gordon, Jonty established RPI Therapy Services in 1997.  Jonty has extensive training and experience in manual therapy techniques including manual intramuscular therapy (Trigger Point Dry Needling) and Vestibular Rehabilitation.  He specializes in spinal, orthopedic and neurological problems.

Jaime Heede, PT, DPT

Jaime received her Doctorate of Physical Therapy degree in May 2017 from St. Louis University and is currently working at RPI’s Covenant House/Creve Couer location.  Jaime’s clinical experience includes outpatient orthopedic care, acute care, home health care and pediatric physical therapy.  Jaime is comfortable working with patients of all ages, abilities and backgrounds and strives to better the lives of all her patients by assisting them throughout their rehabilitation journey.