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Walter Greenleaf, PhD

Advisor San Francisco Bay Area, US

Medical Director, AppliedVR and Chief Science Officer, Pear Therapeutics.

Medical Director, AppliedVR and Chief Science Officer, Pear Therapeutics.

7 vouches

Involved In


Cognitive Leap
InWorld Solutions
Greenleaf Medical Systems


Stanford University
International Society for Virtual Rehabilitation


Visiting Scholar - Virtual Human Interaction Lab Stanford University February 2014 - present
Chief Science Officer Pear Therapeutics April 2014 - present
Co-Founder and Chief Science Officer Cognitive Leap September 2015 - present
Medical Director AppliedVR November 2014 - present
MediaX Distinguished Visiting Scholar, Stanford University Stanford University January 2014 - present
Member Board of Directors International Society for Virtual Rehabilitation January 2012 - present
Director of Business Development CliniSpace April 2014 - December 2014
Director, Mind Division - Stanford Center on Longevity Stanford University March 2013 - April 2014
Chief Strategy Officer Thrive Research Inc August 2011 - July 2012
CEO and President Virtually Better, Inc. April 2008 - June 2011
Founder and CEO InWorld Solutions August 2007 - October 2010
Founder and CEO Greenleaf Medical Systems January 1987 - March 2008
Collaborator and Development Partner VPL Research 1984 - 1992
Research Scientist Stanford University 1980 - 1985


Stanford University School of Medicine Neuro and Biobehavioral Science 1979 - 1985
Hampshire College Human Biology 1975 - 1979
Meadville Area Senior High 1970 - 1974

Interested In

Markets of Interest
  • • Healthcare
  • • Wellness
  • • Medical Devices
  • • Quantified-self
  • • Fitness

You Should Know About Me

Key Accomplishments

Not completed yet

Vouches Received

Vouches Given

Think Walter is awesome?
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They're my friends  •  Partner, Braject. Previously UI/UX Designer, UI/UX design consultants.
Walter is very experienced in many dimensions. He has founded and run a number of companies, successfully. Is very knowledgeable about apply ... ing scientific research to markets. He is also extremely well connected. He has advised me over the years. And his advice has always been very valuable. In my opinion, one would be fortunate to have Walter as their advisor.
Howard Rose
They're my friends  •  Founder and CEO, DeepStream VR and President, Design Director, Firsthand Technology, Inc.. University of Washington grad.
Walter has a very deep well of technical knowledge and practical experience building successful health technology companies. He is an expert ... in virtual reality and other digital health technologies. Walter also happens to be one of the most thoughtful and genuinely nice people I know, who is always generous with his time and expertise.
Rebecca Mandel
Marketing Manager, Samsung Electronics America. Previously Founder, Bottom Line Consulting.
Walter is THE medical VR expert and is known in the industry as the medical VR go to person. He is passionate about his work and has a natur ... al ability to connect people from academia, healthcare and business as he is deeply involved in all three. He is also the kindest and most pleasant person to work with.
Greg Merril
Currently CEO of Brain Sentry, Inc. Has served as founding CEO for two previous VC-backed fast growth health-related product companies.
Walter is a pioneer and thought leader in development of virtual reality technology. He has been an active advocate for the industry since t ... he 1990s and continues to innovate.
Dr. Ralph J. Lamson
Psychologist, Inventor with US Patent for Virtual Reality Immersion Therapy (VRIT), Writer, Swimmer,, Virtual Therapy Inc. Virtigo TM.
Dr. Greenleaf has weathered decade long VR storms to emerge in capacity as business entrepreneur, intellectual property negotiator, and conf ... erence moderator. The breadth of his experience combined with endurance and staying power make him a relevant and competent advisor.
John Jensen
Senior Technical Support Engineer, MiaSole and Co-Founder, Executive Team Member, and Operations Consultant, SoundFit, LLC.
Walter is innovative. I have been impressed with his designs and concepts. I would recommend anyone looking for breakthrough designs to con ... tact and work with Walter.
Olga Peshe
We worked together  •  Chief Administrative Officer, CEREVRUM INC.. Previously Project Director, SIFI.
Walter was extremely helpful for our start-up Cerevrum Inc. We found his profile in LinkedIn and were very impressed by his background in m ... edical application in VR. We reached out to him and asked for a meeting to discuss potential research collaboration on one of our products - VR brain-training game Cerevrum. Walter was very open and agreed to the meeting. Prior to the meeting he found time to study and comment on our research document and provided valuable comments. He also arranged a tour over Stanford's Virtual Human Interaction Lab for our team and introduced us to its director Dr. Jeremy Bailenson. We enjoyed meeting Dr. Bailenson greatly and the tour was very interesting. While talking before the tour, Walter gave us very valuable feedback on our products as well as useful references of potential partners/competitors/investors. He also suggested very good business development ideas that haven't occurred to us before. After the meeting Walter made some very useful introductions that we immediately reached out to. Walter is a great connector, an amazing professional and it will be a dream-come true to continue working with him.