I practised medicine, then went looking for the part of the job that software could carry, and ended up building it.

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Jhonatan Bringas Dimitriades, MD, is a physician and the cofounder and CEO of Keikku, an Amsterdam clinical AI company. Keikku combines documentation, clinical reference, coding intelligence, and clinical context in a dedicated device, and holds FDA clearance and CE authorization. It is recognized by the Erasmus Centre for Entrepreneurship among the fastest growing companies in the Netherlands. Jhonatan advises on digital health at Medscape, was named a 2025 Top 25 MedTech Executive by The Healthcare Technology Report, and speaks at HLTH Europe, LEAP, Wired Health, and the Economist Healthcare Summit.
Origin
I am a child of the 90s in Peru. I grew up through hyperinflation and the years of terrorism. I remember studying by candlelight and waiting in long lines. I also remember the infinite love of my parents and a family loyalty that was total. That is what I carried out of those years.
At 14, I traveled to the United States to compete at the International Science and Engineering Fair. There I met Sir Richard Roberts, who shared the 1993 Nobel Prize in Physiology or Medicine. He agreed to become my mentor. Twenty six years later, he still is, and his guidance has shaped every stage of my life.
I went to Cuba to study medicine while Fidel Castro was still alive, and I managed to meet him. There are many things about his government I will never be in favor of, but I have to recognize that Cuban medicine was probably his greatest achievement. I trained in Havana, Santiago de Cuba, and Granma, and finished early. I came home with a container full of experience in compassion, humanism, and love for medicine.
Back in Peru, I worked for the Police Healthcare System. I loved working for people who needed my work, hearing their stories, and giving them time. That has marked my life ever since, as a doctor, as an entrepreneur, and as a humanitarian. I specialized in occupational medicine and trained in cardiology until I moved to the Netherlands.
In the Netherlands, I moved from the clinic into industry. At Lode, where I held an executive role, I truly learned to speak Dutch. They taught me to speak like a northern Dutch person, and they gave me the life lessons I needed to become part of Dutch society. I learned to be humble and not individualistic. I learned to love paying taxes that can save someone else's life. I learned to love living collectively.
I went on to serve as Chief Medical Officer at Corsano Health and at Nukute, held an executive role at Cardiolyse, and advised several other companies.
As an advisor to Medscape, I had the luck to work with two of the most formidable clinicians I have ever met: John Whyte, now CEO of the American Medical Association, and Hansa Bhargava, now Chief Clinical Strategy and Innovation Officer at Healio. I enjoyed every moment we spent educating clinicians and patients about the power of digital health.
I also became an advisor to two healthcare institutions in Peru, Clínica Internacional and Pulso Salud. The return to my roots was spectacular, and I loved every second.
Then I founded Lapsi Health with my wife, Diana van Stijn, MD PhD. Our goal is the total orchestration of AI for the future of clinical work and healthcare. Our FDA cleared hardware expands that platform with a purpose centered on both clinicians and patients.
Time is what I learned to give my patients in Peru. Now, at Keikku, we are giving time back to clinicians, so they can give it to theirs.
Keikku
We built Keikku, a clinical AI platform running Scribe, Reference, and Diagnostics AI on one platform that expands through an FDA-cleared multimodal device.
Scribe turns the consultation into a structured note while you talk, with ICD-10, CPT and HCC coding on every note. Reference answers clinical questions with citations, and knows the patient when it is working alongside Scribe. Clinical Summaries brings every encounter and record into one picture, so you walk into a visit already knowing the history.
The software runs on any device a clinician already owns, on the phone in their pocket or the computer in their practice. That is where most of our users will stay, and the platform is built to be complete without anything else.
For clinicians who go further, the Keikku Device adds what software alone cannot reach. It suppresses background noise so Scribe works from a clean recording, it runs on voice so the consultation is not interrupted, and it brings FDA-cleared auscultation into the exam room, feeding findings straight into the same loop the software already shares.
If the clinician has to look away from the patient to use it, we have not solved anything.


Amsterdam
Dutch and Peruvian, with Greek roots on my mother's side. Amsterdam is where the company is, and where a good part of the clinical work happens.

Science Park, Amsterdam | Keikku HQ
Elsewhere
A small number of advisory roles, all disclosed.
- Advisory
- Medscape — digital health education
- Advisory
- Clínica Internacional, Peru
- Advisory
- Pulso Salud, Peru
- Advisory
- Clinical AI working group, European health technology network
- Advisory
- Early stage health technology fund, Latin America
- Teaching
- Universidad Nacional Mayor de San Marcos
- Teaching
- University of Applied Sciences of The Hague — guest lecturer
- Teaching
- University of Amsterdam Medical Center — guest lecturer
- Teaching
- University of Edinburgh — guest lecturer
Something that is not work
Outside of work, I love to sing and play the guitar. Diana and I have three kids, and watching them grow is my greatest joy. I also love cheering for Diana when she swims. She is a former Dutch national champion in synchronized swimming and swam for Team NL.