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About us

Our Mission is Fast and Accurate Diagnosis for Everyone, Everywhere. Without a diagnosis, there can be no treatment. That is why prompt and quality scan reporting is our utmost priority.
Founded by consultant radiologists, Hexarad understands the inherent challenges of radiology and puts the radiologist experience at the heart of what we do.

Meet the team



Dr Charles Niehaus


Charles is a former executive director of Alliance Medical Ltd and served on the board at Life Healthcare after it acquired Alliance Medical in 2016. He was previously the Business Development Director for BMI Healthcare. Charles initially worked in Orthopaedic and Trauma Surgery and during his medical career he led the surgical reaction force for the South African military.

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Dr Amy Davis


Amy is a radiologist and experienced medical journalist with over 10 years experience as an Associate Editor of The BMJ. She has also previously worked at BMJ Open as an Associate Clinical Editor focusing on large research trials.

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Medical Director

Dr Rebecca Greenhalgh


Rebecca is a radiologist with a strong background in clinical governance, audit and medical leadership. She has been clinical governance lead for a London major trauma centre and currently leads the acute imaging service for a busy district general hospital. Rebecca is chair of the Royal College of Radiologists Clinical Radiology and Improvement Committee and sits on the Professional Support and Standards Board.

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Dr Farzana Rahman


Farzana is a radiologist with expertise in digital healthcare. She has worked in the health strategy and policy space both Nationally and Internationally, focusing on digital transformation and AI in healthcare. She holds a Masters Degree in Health Economics from the London School of Economics.

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Dr Jaymin Patel


Jay is a consultant radiologist with an interest in Gastrointestinal and Hepatobiliary imaging. He has published over 20 peer-reviewed articles and more than 50 international and national presentations, many of which have won international awards. He is still regularly invited to lecture internationally. He is an editor for iRefer, responsible for writing and updating the GI/HPB imaging guidelines for imaging for RCR/ iRefer, an associate editor of Clinical Radiology journal, and sits on the expert radiology panel for the British Medical Journal (BMJ). Along with Sam, he founded the largest radiology interview preparation course in the UK and Ireland. 

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Non-Executive Director

Umang Patel


Umang is a digital health and innovation leader with 10 years of cross sector experience. Umang joined Babylon as one of the original core team, overseeing 120x growth and eventual listing on the New York Stock Exchange. He has expertise in insurance, scale-ups and NHS contracting - having launched the first ever NHS population based collaboration agreement for Value Based Care. Umang is also a GMC registered paediatrician and NHS Clinical Leadership Fellow.

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Dr Sam Dumonteil


After gaining a degree in Physics at Oxford University, Sam worked as a commodities structured product trader in the Oil and Gas industry. He is a radiologist and the Deputy Director for breast cancer screening in London. He is also co-founder of the UK’s largest Radiology Interview Preparation Course.

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Tim Baker


Tim is an experienced software engineer, prior to Hexarad he was a Senior Software Engineer at Deliveroo for 4 years. He holds a Philosophy degree from Leeds and a Masters in Political Theory from UCL.

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Medical Director

Dr Susan Jawad


Susan is a radiologist at UCLH; she provides mentorship, and teaching to radiographers, junior doctors and consultant colleagues and is widely published. As Medical Director, Susan ensures a high quality, robust and safe service for all our customers and patients.

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Our values


Collaboration for a common goal

Patient Centred

Putting the patient first


Always finding better ways to work


We act in accordance with our values


Promoting equality and fairness in everything we do

Quality and Exellence

Commitment to excellence and the highest quality of care

Our story

The four of us formed Hexarad after we grew tired of seeing that no matter how hard we worked, patients were not receiving their diagnoses quickly enough. 
This is huge problem – without a diagnosis there can be no treatment.
So we decided to take the lessons we learnt as doctors and techies to fundamentally transform how radiology works.  

We built Hexarad – an end-to-end radiology platform to achieve our mission of fast and accurate diagnosis for everyone, everywhere. We’re building technology that empowers people to do the best job they can, in a community that supports and nurtures them.

Corporate Social Responsibility

Hexarad’s Widening Participation Scholarship, in partnership with The Royal College of Radiologists (RCR), promotes diversity and social mobility in the field of radiology. 

Submit a 700-word essay, with no more than 3 figures/tables, answering "Do you think leadership skills are important for Radiologists? Please discuss your reasoning".

Fill in this form to apply.

The winner receives:

  • Essay published by the RCR

  • Assigned to a project within the RCR

  • £1000 grant towards costs to present work at a conference

  • One-year subscription to Clin Rad

In order to apply, you must meet all of the eligibility criteria:

  • Current UK medical student or junior doctor

  • Black, Asian or Ethnic Minority (BAME)

  • State-funded secondary and higher level (pre-university) education

  • No parents working as medical doctors in the UK

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