Team

Daniël Groos

Daniël has been an advisor at Hooghiemstra & Partners since September 1, 2025. As a legal professional, Daniël has in-depth knowledge of data protection law and extensive experience in the ethical and legal aspects of further use of patient data in medical-scientific research.

Expertise: GDPR | UAVG | Medical Treatment Agreement Act | EHDS Regulation | Data protection in medical-scientific research

Previously, Daniël worked at the MLC Foundation and Lygature. There he worked on, among other things, the Code of Conduct for Health Research and data protection in public-private partnerships within healthcare research.

Daniël obtained his Bachelor's degree in Law from the University of Amsterdam and his Master's degree in Jurisprudence & Philosophy of Law from Leiden University.

Daniel Groos

Our Team

Theo Hooghiemstra
Partner

Helen Hukshorn
Partner

Thijs Drouen
Partner

Mariette Lokin
Principal Consultant

Walter van Holst
Principal Consultant

Taetske van der Reijt
Principal Consultant

Lisanne Kramer
Senior Advisor

Judith Zoë Blijden
Senior Advisor

Wimmy Choi
Advisor

Anna Keuning
Advisor

Lieve Smeets
Advisor

Riëlle Osepa
Advisor

Robin Verhoef
Advisor

Daniël Groos
Advisor

Anna Visser
Manager Operations and Secretariat

Elles van Geest
Associated Partner

Wouter van Haaften
Associated Partner

Pieter Ippel
Associated Partner

Ad van Loon
Associated Partner

Ingrid Morrema
Associated Partner