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About AT ONE LLC.

AT ONE LLC is a health behavior change and research company founded by Dr. Stefanie CF Toise. We use evidence-based skills, strategies, and tools to address chronic disease and recovery. Patients learn to improve their quality of life and health outcomes, and clinicians expand and refine their ability to impact the health outcomes of their patients.

Our programs

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INDIVIDUALS/GROUPS

We help you understand your health, wellness, and diagnoses, and translate treatment plans into actionable steps for better health.

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CLINICIANS

We partner with you and your patients to educate about wellness, diagnosis, and treatment, and to translate treatment into actionable steps.

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INSTITUTIONAL CLIENTS

We help you provide high-quality programming that is tailored to your specific needs and meets your regulatory requirements .

Meet Dr. Stefanie C.F. Toise

Dr. Stefanie C.F. Toise, PhD, MPH, C-IAYT, is a behavioral health specialist with a doctorate in psychology from Clark University, a Master of Public Health in Epidemiology from Yale University, and post-graduate certification in Organizational Development and Human Resource Management from Columbia University and the University of Michigan. She is also certified as a medical yoga therapist. Her work integrates health psychology, public health, behavioral medicine, and mind-body science.

As Principal Investigator on an NIH-funded study at Yale New Haven Hospital, Dr. Toise has translated research into practical strategies for health behavior change. With more than three decades of experience, she delivers engaging, evidence-based programs that help people build resilience, reduce stress, and make realistic, lasting changes.

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LATEST BLOGS

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