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Meet Our Team


Our Commitment to
Social Responsibility

For years I have kept my eye on the horizon and brought two friends with me: fortitude and patience. Believing all along that the time will come when there is a demand for a new approach to behavioral health. The time is now, for emotional well-being to be understood as a right not a privilege. Behavioral Fitness™ is a new approach for all of us to work better together.

Allyson Mayo, DBH - Founder, Behavioral Fitness

Dr. Allyson Mayo

Dr. Allyson Mayo, DBH, the  Founder of Behavioral Fitness™, has 20+ years of experience working with inpatient psychiatric service providers, homeless services, addiction treatment centers, integrated healthcare quality and process improvement, and Fortune 100 companies. Dr. Mayo has developed groundbreaking tools, programs, lectures, and workshops based not only on her vast professional experience but also on her own extraordinary journey that started as a curious teen who left her family and everything familiar to find herself. And did she ever. But that’s another story for another time. Or perhaps a book. Dr. Mayo is a Doctor of Behavioral Health and an industry expert educating on how to prescribe “Lifestyle Medicine” for the root causes of maladaptive behaviors. Through her revolutionary approach to Behavioral Fitness, she carves out a much-needed new path to exceptional mental health. A professor at the University of San Francisco and a county mental health representative, she is committed to seeing that our communities become behaviorally fit.

Teri Delamontanya, Co-Founder, Behavioral Fitness

Teri DeLaMontanya

Teri DeLaMontanya, BSN, RN, CEN, NE-BC is the co-founder of Behavioral Fitness. She is a certified emergency nurse and nurse leader who has a deep passion for helping people. She served over 2 ½ decades in healthcare with an emphasis in emergency/crisis management, Lean process improvement, facilitation of teams, and individual coaching and mentoring.  Teri also served as a Transformation Leader in healthcare, helping to support and facilitate change across the healthcare organization. She has earned a reputation for compassionate leadership and was recognized with the Beverly Jones Compassionate Leadership Award at John Muir Health, Walnut Creek in 2012, 2016, and 2018. She is an avid outdoor enthusiast and loves hiking, bicycling and being in nature as a way of grounding and connecting to herself and others.

Teri brings her education, lived experiences, compassion and ability to create a safe, non-judgmental space to every engagement. She understands that life can be overwhelming and exhausting sometimes and leave you feeling like you have nothing left to give. She meets her clients where they are in their lives, helping them to identify gaps that may be preventing them from reaching their goals and living life with a greater sense of purpose, meaning, joy and appreciation. Teri offers individual or group sessions by phone or video, and also features “walk and talk” sessions for SF/Bay Area residents- combining the benefits of nature and the outdoors with a Behavioral Fitness experience.

Our Team

We work closely with a diverse team of experts in our community dedicated to the pursuit of wellness in all aspects of our lives.

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Kathryn Howe

Kathryn Howe is the Director of Healthcare Digital Transformation, Americas Sales, ‎at Cisco where she helps healthcare organizations develop and execute their vision for digital transformation. She has over 20 years of experience in both the healthcare industry and technology shaped by a personal interest in behavioral health and a formative experience working with the founder of the Haight Ashbury Free Clinic. Her industry-leading model for digital transformation has helped hundreds of companies apply technology to improve performance in operations, merchandising, logistics, and clinical and staff communications, as well as patient and customer experience. Kathryn has helped executives in the retail, hospitality, and healthcare industries navigate successful digital transformations, combating disruptive market forces and creating next-generation digital companies that are winning and growing.

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David E. Smith, MD

Dr. David Smith is a national leader in addiction medicine, the psychopharmacology of drugs, and new research strategies in the management of drug abuse problems. The founder of the Haight Ashbury Free Clinics of San Francisco, he has been honored as one of the “Best Doctors in America.” Dr. Smith is a distinguished fellow and past president of the American Society of Addiction Medicine and the California Society of Addiction Medicine, as well as former medical director for the California State Department of Alcohol and Drug Programs and California Collaborative Center for Substance Abuse Policy Research. He is the chair of addiction medicine for Alta Mira Treatment Centers and medical director for Center Point, and an adjunct professor at the University of California, San Francisco.

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Sahar Berjis, RD, MPH, CDN

Sahar Berjis is a Registered Dietitian, Nutritionist, and founder of Inner Health & Wellness, a functional nutrition practice in Walnut Creek, California. She has a BS in Nutrition and a MS in Public Health from Tulane University. Sahar has been the key speaker at numerous academic and nutritional conferences—John Muir speaker series, NYU, Columbia, American Dietetic Association, American Homeless Association, New Jersey Nutrition Conference—where she has addressed the importance of good nutrition. In 2000, Sahar is a certified Kid’s Yoga instructor (Yoga Karma, New York City) and loves teaching yoga to children.

Tabitha Chapman

Tabitha M. Chapman, AMFT

Tabitha M. Chapman, AMFT is the CEO and Founder of The Freedom Train Project and, Night Owl Media Services Corp. She is the business partner of Dr. Amber Deneén Gray, DBH, of Gray’s Trauma-Informed Care Services Corp. She is a Marriage and Family Therapist and specializes in parenting, assisting families in learning health ways in which to teach kids, provide safe environments, and foster positive learning, and development. She works in the capacity of designing educational materials for practitioners in the field of therapeutic services, as well as everyday operations and functioning. Tabby also works with individuals who have been traumatized by coercive control groups, such as cults. She is a stalwart advocate for victims of cults and children. She has been featured in the Starz Documentary, Seduced: Inside of the Nxivm Cult.

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Julie Cohen, RN

Julie Cohen, RN, is a psychiatric and addiction nurse with over 10 years of experience. She is the founder of Steps 4 Recovery in Berkeley, California—a safe and nurturing environment that aims to support people in achieving sustained recovery through structure and authentic connection. Her father, with a long journey of addiction, inspired her passion for Addiction Medicine and her commitment to the well-being and recovery of those affected by addiction. She works closely with the Steps 4 Recovery team and is always available to provide support to residents.

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Lucid Dawn

Lucid Dawn Yoga & Movement Therapy weaves together ancient philosophy and practice with modern neuroscience and the best of healing/growth practices from many different modalities and disciplines. We have extensive experience working with teachers, leaders, athletes, parents, performers, bosses, and caretakers of all sorts, as well as creative visionaries, those in life transitions, and in recovery from illness, trauma, and abuse. We are passionate about supporting all beings but especially those that support others in creating internal and external environments of connection, wellness, and inspirational support.  We feel that teachers, parents, leaders, healers, nurses, doctors, etc, all need more support to support the work that they do in constantly giving.  We aspire to co-create a world where all beings have unlimited access to practical tools and resources for healing and growth.

Jeremiah Dees

Jeremiah Dees

Jeremiah is a classically trained bio-mechanist who puts the highest value on making sure what we do translates into the results we expect. He synthesized his experience as a world class athlete, his education in understanding biologic systems, and his personal triumphs over psychological/ emotional challenges to develop the Integrative Fitness Method. Most of the people he helps describe him as a mix from many fields – part physical therapist, part massage therapist, part personal trainer, part nutritionist. He views himself as a professional coach with a comprehensive toolbelt. He is also an avid outdoorsman with extensive rescue experience.

Amber Deneen Gray

Dr. Amber Deneén Gray

Dr. Amber Deneén Gray is the CEO and Founder of Gray’s Trauma-Informed Care Services Corp. Dr. Gray is a Forensic Domestic Violence Counselor, Victim Intervention Specialist and Doctor of Behavioral Health. Her organization is dedicated to educating providers to give the most efficient and effective integrated care services possible to patients and clients with trauma. Dr. Gray runs the organization with her wife and business partner Tabitha M. Chapman, AMFT. Dr. Gray has won several awards for the work she has done in violence prevention and intervention. She is an honorary awardee for the Edith Surgan, Margery Fry, and Morton Bard awards. She is also the recipient of the 42nd District Congressional Award for Outstanding Work in Victim Services and a letter of commendation from the late Senator John McCain for outstanding work in battered women’s services. Dr. Gray is committed to providing the best quality of care for patients.

Krista MacKinnon

Krista MacKinnon

Krista MacKinnon is a Clinical Outreach Representative in the San Francisco Bay Area. She has nearly twenty years of experience in the behavioral health field in Canada, the United States, and Australia. She understands how challenging it can be to navigate the maze of insurance, programs, and mental health resources to find the perfect unique fit for you and your family. Her goal is to support people in finding the right resources to help them be free from suffering and help them on the way to healing and a better life.
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Tanya Parmley

Tanya Parmley is a Personal Trainer and Coach and founder of Freedom Coaching. She has over 30 years of experience and believes that health and wellness are necessities. Through moderation and taking baby-steps to building healthy habits, every person can be successful. We are given each day to discover new and creative ways to be active and it should be fun! Fitness is truly about creating joyful experiences and not a “one size fits all” approach. Enjoy the journey – it’s all about you!

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David Schlussel

David Schlussel is a yoga teacher, life coach, and father. David experiences yoga as the practice of reconnecting with our wholeness. When we operate from our wholeness, we experience the incredible strength and flexibility that is our potential. David coaches his students from fixed ideas about what they can and can’t do, towards life as a playful exploration of possibility.

David began his exploration of yoga with Ashtanga, where he learned the benefit of regular consistent practice. He continued his training by studying Dynamic Yoga, where he discovered the deeper strengths available through activating along the muscular and energetic pathways of the body, and where he developed his passion for yoga philosophy. He is currently inspired by Anusara Yoga, which has infused his practice and teaching with an empowering understanding of alignment, therapeutics, and fun.

David’s classes are a flowing celebration of our bodies, designed to exercise, educate, integrate, delight, challenge, and recharge. He is known for his warm approachability, contagious curiosity, gentle and liberating hands-on adjustments, facilitating healing of old injuries, and offering concepts that support his students both on the mat and in their daily life.

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Sonia Singh

Sonia Singh has a Master’s degree from Tulane University’s School of Public Health & Tropical Medicine, is a graduate of University of California, Davis’ Professional Coaching for Work & Life program, and is certified by the International Coaching Federation. She specializes in helping individuals reach their full potential, building confidence in their abilities, reaching that next level of success, and accomplishing even the most challenging goals. Sonia has coached over 2000 people in developing leadership skills, including assertiveness, public speaking, team engagement, managing feedback, inspiring others, managing emotions in the workplace, problem solving, communications, goal setting, efficiency, and decision making.

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Marise Zimmerman, MAAT, ATR-BC

Marise Zimmermann is an art therapist, Board Certified by the ATCB (Art Therapy Credential Board), a SoulCollage Facilitator, and an artist-photographer. She has a Master of the Arts in Art Therapy from the School of the Art Institute of Chicago. She was a pioneer of art therapy in the South of Brazil and has presented her work in conferences and workshops in both countries. Marise was the supervisor of the Expressive Arts Therapy Department at the John Muir Behavioral Health Center for 13 years; she has a comprehensive knowledge of the theories and clinical skills used in art therapy. Her work focuses in developing healthy strategies, emotional resilience and empowerment through the art making and creative process. The exploration of different perspectives and possibilities when managing life experiences creates new dialogues and improves the quality of life for individuals, their families and their communities.