About Us

    The Center for Positive Change was founded in 1995 in the north end of Napa Valley, California.  This vibrant and verdant valley is world-famous as a food and wine vacation destination, and is one of our favorite retreat locations. 

    In 2005, The Center for Positive Change office was relocated to Washington's Olympic Peninsula in the delightful town of Sequim.  The Olympic Peninsula is renowned as a vacation destination for hiking, boating, and fly-fishing with access to many unspoiled rivers, creeks, alpine lakes, and ocean shorelines.

   As in all of life, transition continues. In November of 2013 we expanded our services to include Jefferson County as well as Clallam County on the Olympic Peninsula. We moved our office location to the maritime setting of Port Townsend. We are honored to now serve those from the Eastern part of the Peninsula as well as those from the Western

Founder: Tim Berry

    Tim Berry holds masters and doctoral degrees in both psychology and religious studies.  While he has consistently maintained a clinical practice (psychotherapy) in psychology, his special focus for the past dozen years has been in coaching organizations and individuals towards positive change.  Tim has advanced training in Mindfulness Meditation, Biofeedback, Sports Psychology, EMDR, and Interactive Guided Imagery, which makes him particularly effective in guiding people to their own center of change.  He is a licensed Fishing Guide and a certified White Water Rafting Guide and when appropriate utilizes the water in his coaching work.

    In addition to a thriving practice, Tim maintains an active schedule of speaking engagements before local and regional groups who wish to make positive change.

Our Associates:

    Under the direction of founder Tim Berry, the Center for Positive Change utilizes a cadre of talented independent practitioners. 

Heather Berry

    Heather Berry has a Bachelors of Science in Psychology from the University of Maryland. She underwent Biofeedback training from Stens Corporation, and is working towards international certification through Biofeedback Certification International Alliance. She has completed mindfulness training through Mindful Schools, The
CMI Education Institute with Terry Fralich, and plans to continue her training. She has worked in the holistic health industry for about 20 years and is passionate about teaching people how to use diaphragmatic breathing & meditations to self-regulate their physical, mental and emotional responses.  She will serve a vital role in our retreat services.


Bill Criddle

For over forty years, Bill Criddle has coached individuals, teams, and families to effectively address and resolve sensitive, awkward or difficult issues and challenges.  He focuses on teaching teams and individuals psychological tools to enhance effective communication, to control destructive emotional reactions, as well as powerful tools for creative problem solving.

Bill holds a MBA degree from the University of Geneva and a PhD degree in psychology from the University of British Columbia. He has been an executive coach for a number of large firms including Microsoft, Intel, and Russell Investments, as well as numerous smaller privately held firms. He has worked with many individual executives and managers who come to him for personal and professional guidance, independent of their firms. 

Tom Scambilis

    Tom Scambilis is a seasoned consultant and executive coach with over 20 years in business and industry.  He has a diverse background and expertise in a variety of professional areas including performance management, training, change management, sales enablement, strategic alliances, program development, intercultural team management, partner management, and leadership coaching.  Tom holds a Masters degree in Learning and Development and a Bachelors degree in Communication from Wright State University in Dayton, Ohio.  He has delivered training programs and coaching engagements globally in the Fortune 500 via his work at Accenture, Dell, and EMC.  Tom has significant passion for helping people learn, and finds his greatest success by facilitating discussions that help people solve their own professional challenges.  

Tom is also an avid fly-fishing enthusiast and mentor.  He has explored many of the most pristine fly-fishing waters in the Americas.  His motto is "Make it happen!", and a leadership/fly fishing trip with Tom will certainly help you uncover the right approach to your most perplexing challenges. 

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