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Our Team

James A. Peters, MD, DrPH, RDN, RRT, FACPM

James A. Peters, MD, DrPH, RDN, RRT, FACPM

Medical Director  |  Co-Founder of TakeTEN Program

Dr. Peters is a renowned preventive medicine expert, known for his expertise in diagnostic and lifestyle medicine. He received his medical degree from Loma Linda University, where he completed his residency in Preventive Medicine. Dr. Peters earned a second doctorate in Public Health, with special emphasis in health promotion and prevention, and a Masters in Public Health in epidemiology, which focuses on the factors that can cause health or disease. Dr. Peters is board certified in Preventive Medicine and brings considerable experience in primary care and diagnostic medicine. Dr. Peters emphasizes health promotion and disease prevention by starting with lifestyle medicine to treat the cause of illness. He promotes healing, well-being and optimal health by focusing on the whole person: physical, mental, social, and spiritual. He draws on his lifestyle medicine expertise, utilizing the best of traditional medicine and integrating evidence-based interventions including nutrition, exercise, botanical and natural methods.

Cheryl T. Peters, DCN, RD

Cheryl T. Peters, DCN, RD

CEO, TakeTEN LLC  |  Co-Founder of TakeTEN Program

Cheryl-Thomas Peters, DCN, RDN, is the Co-founder of the TakeTEN™ program. She holds a Doctorate in Clinical Nutrition from University of Medicine and Dentistry of New Jersey, and is a Registered Dietitian from Loma Linda University. Cheryl specializes in nutrition science and teaches the concept that “food is medicine”. Her focus is on the prevention and treatment of lifestyle related chronic diseases, such as diabetes, cardiovascular disease, liver and kidney disease, and cancer along with obesity, metabolic syndrome and other health conditions.

Cheryl’s doctoral research focused on the development of a diet score and health habit score as a screening tool in clinical practice to predict risk of chronic disease. These risk screening lifestyle habit scores may be utilized in research to measure the impact of health habit changes on health outcomes and useful in building the body of evidence on the powerful health effects of lifestyle medicine.

Susan Gamble, MD

Susan Gamble, MD

Dr. Gamble joined the  TakeTEN™   program in 2016. TakeTEN™  offers health care with a unique Lifestyle Medicine Intervention inspiring hope, health and wholeness. TakeTENTM offers personalized whole person care and a lifestyle medicine prescription integrating the ten health habits with emphasis on food as medicine, move for strength, and health by faith, to create an environment to unlock the body’s natural healing and restore health, prevent disease and improve

quality of life. TakeTEN Lifestyle Medicine evidence based intervention and approach to care is unique in effectively delivering preventive care to disease management and even in acute care setting, bridging the gap between traditional medicine approach and typical alternative and holistic care.  Dr. Gamble sees patients in the residential program, as well as patients in the Adventist Health TakeTEN™  outpatient clinic.

Dr. Gamble is passionate about lifestyle medicine and is dedicated to the philosophy of getting to the cause of disease, with less focus on medication alone to treat and manage it; integrating more natural ways to treat disease with fewer medicines.

Dr. Gamble is board certified in internal medicine. She earned her medical degree from the University of Washington School of Medicine, Seattle, WA, followed by an internal medicine residency at Yale University in New Haven, CT.

Dr. Gamble started practicing medicine first as a Hospitalist in Saint Augustine, FL, and then came to Adventist Health St. Helena and Adventist Health Clear Lake.

Lisa D. Hinz, Ph.D., ATR-BC is a licensed clinical psychologist and a board certified art therapist.  She has worked with the Peters in the TakeTEN program since it began in 2011. Dr. Hinz conducts individual intake and exit appointments to help participants identify the psychological factors that will help them best meet their lifestyle change goals.  Her lectures help clarify the behavioral health aspects of the ten health habits: embracing healthy relationships, positive choices and freedom from addictions.  Dr. Hinz also provides an art experience to help participants envision a healthy future.

Peggy Thomas, MSN, ACNP-BC

Peggy Thomas, MSN, ACNP-BC

Peggy Thomas, MSN, ACNP-BC, is an experienced Nurse Practitioner with a passion for lifestyle medicine. She earned her Master of Science Degree in Nursing at the University of California Los Angeles and her Bachelor of Nursing degree at California State University in Carson, CA.

Prior to her work with us, Ms. Thomas has provided specialty care for patients in both acute care hospital settings and an advanced internal medicine outpatient clinic. She has provided services in the Adventist Health system since 2009.

Peggy Thomas is passionate about lifestyle medicine and is dedicated to the philosophy of getting to the cause of disease. She prefers to integrate more natural ways to treat disease using fewer medicines whenever possible.

Ms. Thomas supports Dr. James Peters and Dr. Susan Gamble at the TakeTEN™ Program, as well as seeing patients at the Adventist Health TakeTEN™ outpatient clinic.

Dr. Laura B. Heffernan, Clinical Psychologist, received her B.A. from Stanford University and her Ph.D. in Clinical Psychology from the University of Arizona. She ran the Outpatient Clinic of the Menlo Park/Palo Alto Department of Veterans Affairs before moving to the Napa Valley 13 years ago. She now splits her professional time between leading behavioral health workshops at the Take Ten Program and teaching cognitive behavioral tools in her private practice to adolescents and adults struggling with eating disorders, depression, anxiety, substance abuse, grief, and/or trauma reactions.  

Dr. Heffernan spends her time outside of work parenting and coaching her 3 active girls. She is pleased that the girls love the outdoors as much as she and her husband do.

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The St. Helena Lifestyle Medicine Institute values your privacy and handles your personal information with care. Your email address and information is secure, confidential and will not be sold to any third party sources.