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Registration as ‘health psychologist’ (BIG-registratie gz-psycholoog; 1999-2016)
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Netherlands Behavioral Medicine Federation (1988 - 2022)
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Society of Behavioral Medicine (1996 – present)
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American Psychological Association, Division 38, 2015
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Association of Rheumatology Health Professionals/American College of Rheumatology (1999-2018)
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Dutch Society for Rheumatology (2003-2016)
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Netherlands Health Professionals in Rheumatology (2004 – present)
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Academy of Behavioral Medicine Research (2012 – present)
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Nederlandse Vereniging voor Psychosociale Oncology (2013 – present)
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International Psychooncology Society (2015 – present)
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Certificate ‘Good Clinical Practice’, 2008 and 2010; registration in BROK-register (2010 – present)
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Netherlands Institute of Psychologists (member: 1995-2016; registration as clinical psychologist: 1985-2005)
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Society of Technology Assessment in Health Care (1997-2012)
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World Association of Medical Editors (2008-2011)
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Osteoarthritis Research Society (2011, 2012)
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Society for Behavior Therapy (Dutch, registration as behavior therapist; 1984-2001)
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European Health Psychology Society (1989-2000)
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Society for Psychophysiological Research (1988-2000)
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Society for Sexology (Dutch; 1986-1999)
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International Academy of Sex Research (1988-1995)