Frank has been working as a physiotherapist since 1981 in Switzerland, Australia, and the Netherlands in hospitals, rheumatism clinic, rehabilitation center, health center and various sports clinics and private practices. In 1993 he graduated from the Nei Tsjing Academy of TCM in Utrecht. In 1994 he opened his TCM practice in Tilburg. From 2006 to 2014 he has been teaching at the Hwa To Acupuncture Centre in the Netherlands where he given lectures about various topics. Over the years he has given several lectures at conferences in the Netherlands and abroad about the relationship between acupuncture and the I Ching (the Book of Changes) and has published several articles about it.