HomeAbout Amdia
A doctor, a technologist and a builder.
Healthcare AI usually fails in one of three places: it is medically wrong, it is technically unreliable, or it never gets past a pilot. That is why the three of us build Amdia together.

Team
Who you work with.
- Michiel HagemanCo-founder · Doctor

Holds a PhD in shared decision-making and did research in Boston. Built 100+ decision aids with PatiëntPlus, together with scientific societies, departments and patient organisations, and studied their effect in Dutch hospitals.
He knows what happens in the consulting room, and what doesn’t work. He makes sure Amdia is medically sound and fits the daily practice of care providers.
- Steven van de RidderCo-founder · Technology

At online supermarket Picnic, he was the driving force behind data and technology, with one goal: using technology so smartly that everyone gets a better experience.
He then built Unprompted with Erik: AI in which verified accuracy comes first, so every answer can be traced to its source. He makes sure Amdia is designed to be safe from the ground up.
- Erik LigtenbergCo-founder · Operations

Learned at BCG how large organisations change, and as an executive at companies including Lazada how to do that at scale. He then built Unprompted with Steven.
His common thread: making sure customer, partner and organisation all reach their goals, also during rapid growth and in highly regulated markets. He makes sure a good idea becomes a product that hospitals actually adopt, and keep using.
In both directions
Information between patient and care provider comes across clearly and safely, through one channel.
A grip for patients
Knowing what was discussed and what’s next: more trust in their care.
One platform for care providers
Using AI responsibly, developed with medical specialists.
Our story
We were right. And we were wrong.
What drives us is better health outcomes: people who build health skills, supported by care providers who are empowered to do their best work.
PatiëntPlus’s decision aids work: patients know more and more often choose what fits them. But as a separate tool, they cost care providers extra time, and hospitals struggled to make the business case. Good care was not the problem. The form was.
Amdia goes a step further.
No more separate solutions, but one smart assistant that walks alongside the patient: from the intake at home to the follow-up after treatment. It asks, explains and sets out the choices, built on PatiëntPlus’s validated content. The care provider gets a clear overview beforehand, a patient who arrives prepared, and room for the core of the profession. AI is not the goal. It is the means to finally do what we always wanted.
What we stand for
Four principles.

- No AI without validated knowledge. An answer that cannot be traced back to a guideline or departmental agreement does not belong in the consulting room.
- The patient is the greatest untapped capacity in healthcare. A patient who arrives well prepared makes the appointment shorter and better.
- Shared decision-making is not an extra step. It is the shortest route to appropriate care, and less care that nobody wanted.
- What you build, you must measure. That is why we study the effect of what we make, and publish it.
Our contribution to appropriate care and shared decision-making in the Netherlands
- 100+ PatiëntPlus decision aids, licensed to Amdia, developed with scientific societies, departments and patient organisations
- PhD research on shared decision-making
- Studies on the effect of PatiëntPlus decision aids, including a randomised trial in hip and knee osteoarthritis
- An ongoing study of the smart assistant across five care pathways
How we work
Calm, honest and with the care provider in charge.
- We say what Amdia does and doesn’t do. No diagnosis and no medical advice.
- The care provider stays in charge: AI prepares, the care provider decides.
- Patients get calm and their own pace, and every question has a reason.
- We develop together with medical specialists.
More
For everyone who receives care, and everyone who gives it.
