Physicians and Medical Providers

Arthur Frank, MD, MS

Dr. Arthur Frank is the GWUWMP's director. He received his undergraduate degree from Massachusetts Institute of Technology (MIT), a Master's degree in biochemistry from the University of Pennsylvania, his medical degree from New York University, and completed his residency in Internal Medicine at Stanford University.

Dr. Frank has concentrated his professional activities on the management of adult obesity, providing clinical care to patients for more than 30 years. He is also actively involved in clinical research, including projects evaluating aspects of behavior modification, pharmacotherapy for obesity treatment, and the development of standards for the measurement weight maintenance. He has written extensively about the organization of weight management services.

Dr. Frank is a former Chairman of the Clinical Committee of the North American Association for the Study of Obesity (NAASO) and was responsible for NAASO's development of an extended clinical program focusing on the scientific aspects of obesity and weight management. He has participated in litigation related to the protection of rights of obese patients who have been subjected to employment discrimination. He also is a frequent professional speaker about obesity prevention and treatment.

Benjamin Bronheim, MD

Dr. Benjamin Bronheim is a psychiatrist who works primarily with adults in individual and group psychodynamic psychotherapy. He received his undergraduate degree from Brandeis University, his medical degree from the Medical College of Wisconsin, and completed his residency through the National Institute of Mental Health. He has been a group leader and instructor with the American Group Psychotherapy Association. For the past 25 years, Dr. Bronheim has specialized in obesity and eating disorders, dissociation disorders, and abuse.

Ginga Colclough, MSN, FNP-C

Ginga Colclough is a nurse practitioner with 30 years of clinical experience. She received her education and certification as a nurse practitioner from the University of North Carolina at Chapel Hill and her undergraduate and graduate nursing degrees from Catholic University. She joined the GWUWMP after working with the National Cancer Institute performing epidemiologic research for 11 years. Ms. Colclough uses a non-traditional approach to the management of weight loss that emphasizes stress management and the development of flexible self-nurturing techniques and collaborative (staff/patient) models.

Scott Kahan, MD, MPH

Dr. Scott Kahan is a physician specializing in preventive medicine and public health. He received his undergraduate degree in bioengineering from Columbia University, his medical degree from Medical College of Pennsylvania, and his Master's of Public Health degree from Johns Hopkins School of Public Health. He completed a residency in preventive medicine from Johns Hopkins University where he served as chief resident.

Dr. Kahan is the Editor-in-Chief of a series of twelve medical textbooks that are published internationally and translated into nine foreign languages. He recently co-authored an 800-page nutrition guide for physicians, which is distributed free-of-charge to every medical student in the country. He has written about nutrition and public health in several national newspapers.

Dr. Kahan is an associate faculty member at Johns Hopkins School of Public Health and a member of the U.S. Department of Agriculture (USDA) team that is creating the 2010 Dietary Guidelines for Americans.

Renu Mansukhani, MD

Dr. Renu Mansukhani is a board-certified endocrinologist and internist. She received her medical degree from the Brown University School of Medicine and did her endocrinology fellowship and weight management training at New York-Presbyterian Hospital/Memorial Sloan Kettering Cancer Center. Prior to joining GWUWMP, she did health policy work in childhood obesity for a national advocacy organization. She has written numerous scholarly articles regarding childhood obesity prevention and general nutrition and wellness, and is a physician-advocate for a healthier food environment for both adults and kids.


Becky Bailey, PhD

Dr. Becky Bailey is a clinical psychologist who leads behavioral groups for GWUWMP. She received her undergraduate degree from Emory University and her graduate degrees from the University of Kentucky. She completed advanced training at both George Washington University and Georgetown University. Prior to joining GWUWMP, Dr. Bailey worked extensively in clinical trials for psychiatric medications. She maintains a private practice specializing in individual psychodynamic psychotherapy and serves as an adjunct faculty member at Georgetown University.

Maria Foley, PsyD

Dr. Maria Foley is a licensed psychologist who received her doctorate in clinical psychology from the American School of Professional Psychology in Arlington, Virginia and a Master's degree in counseling from the American University in Washington, D.C. She also completed a clinical psychology internship at Spring Grove Hospital Center in Maryland. Dr. Foley has a special interest in working with patients who have experienced trauma, as well as those who are struggling with issues related to eating, weight, and body image. In addition to conducting psychoeducational and psychotherapy groups for GWUWMP, Dr. Foley maintains a private psychotherapy practice.

William Picon, PhD

Dr. William Picon is a clinical psychologist who specializes in the psychological dimensions of the treatment of obesity. Dr. Picon earned his undergraduate and graduate degrees from the University of Maryland and joined our staff in 1981. His diagnostic constructs of food and fat dependency were first described in 1990 and he continues to study, lecture, and write on this important topic. His website on eating impulse analysis is widely used by clinic patients. In addition to leading the psychology program at GWUWMP, Dr. Picon also sees private psychotherapy patients on a limited basis.

Marilyn Sperling, PhD

Dr. Marilyn Sperling is a clinical psychologist who received her undergraduate degree at Brown University and her doctorate in clinical psychology from the State University of New York at Stony Brook. She has been on the program's staff for 22 years. She was a staff psychologist at St. Elizabeth's Hospital and was actively involved in group training and supervision of clinical psychology interns. From 1979-1982, she acted as chief psychologist of the Noyes Division of St. Elizabeth's. In addition to her work at GWUWMP, Dr. Sperling maintains a private psychotherapy practice and specializes in binge eating, women's issues, and the treatment of coexisting obesity and depression.


Jessica Black, MPH, RD, LD

Jessica Black is a registered dietitian who received a bachelor's degree from the University of Wisconsin and her master's degree in Public Health at the University of Maryland. In addition to working at the GWUWMP, Ms. Black is the executive director of The Campaign to End Obesity a non-profit working to drive policy changes toward better prevention and treatment of obesity. Jessica also serves as an adjunct faculty member at George Washington University.

Nicole Brown, MS, RD, HFI

Nicole Brown is a registered dietitian with a Master of Science degree from the University of California, Berkeley and more than 20 years experience in clinical nutrition and health promotion. Certified by the American College of Sports Medicine as a Health Fitness Instructor, she also advises patients on physical activity and exercise. In addition to her work at GWUWMP, she conducts a private practice in Virginia where she provides medical nutrition therapy to patients of all ages for the treatment of obesity, high cholesterol, hypertension, and diabetes with an emphasis on lifestyle change.

Kathy Glazer, MS, RD

Kathy Glazer is a registered dietitian who received her Master's degree in Nutrition Science from Case Western Reserve University. She has practiced as a registered dietitian for 20 years and has taught nutrition classes as an adjunct professor at George Mason University. In addition to her private practice in northern Virginia, she has worked as a health educator for Health Care Weight Control and as a manager for U.S. Wellness Health Center. Ms. Glazer is often asked to give expert nutrition recommendations for local television shows and newspapers.

Rebecca Mohning, MS, RD, LD

Rebecca Mohning is a registered dietitian and a certified personal trainer. She received her undergraduate degree in dietetics and her graduate degree in exercise and sports science from Iowa State University. She is also certified as a personal exercise trainer by the American College of Sports Medicine. She previously worked as the dietitian for Iowa State University's wellness center, where she worked with college athletes and students with weight management concerns and eating disorders. In addition to her work at GWUWMP, Ms. Mohning also runs a private nutrition and personal training practice and provides nutrition counseling for Cardiology Associates and Sports Club LA.

Randi Weissberger, RD, LD

Randi Weissberger is a registered dietitian who received her degree in nutrition science from the Pennsylvania State University and completed a dietetic internship at Massachusetts General Hospital in Boston, Massachusetts. She has worked at the National Institutes of Health, Washington Hospital Center, and the obesity clinic at Children's National Medical Center. In addition to her work at GWUWMP, Ms. Weissberger runs a private practice in Bethesda, Maryland and consults with area fitness clubs. She specializes in adult and pediatric nutrition counseling for obesity, cardiovascular disease, diabetes, pregnancy, eating disorders, sports nutrition, digestive disorders, and epilepsy.

Exercise Staff

Danielle Ring, M.S.

Danielle Ring received her Master's degree in exercise science and health promotion from California University of Pennsylvania. She is certified as a personal trainer by the National Academy of Sports Medicine and also holds certifications in wellness coaching and Pilates instruction. Ms. Ring specializes in corrective exercise, exercise for weight loss, working with post-menopausal women, and strength and core training.

Jackie Diamond, M.S., B.S.N.

Jackie Diamond received a masters degree in exercise science from George Washington University, a bachelor's of science degree in biology from Gettysburg College, and a nursing degree from George Mason University. She has worked in the healthcare industry, health policy and governmental affairs, numerous fitness facilities, and the cardiac unit at INOVA Fairfax hospital.