OHT London: Where does health start (and stop)?
ons 19 nov.
|OHT London
Rethinking boundaries in a blurred system - and what that means for innovation and equity


Time & Location
19 nov. 2025 18:00 – 21:00
OHT London, Hale House, 76 Portland Pl, London W1B 1NT, UK
About the Event
The health system is no longer a system, it’s a patchwork.
Retail pharmacies deliver cancer care. YouTube doctors reach more people than GPs. Apps prescribe medications. Carers keep entire populations alive, unpaid. Amazon delivers pills. The NHS contracts private hospitals. AI triages symptoms, wearables monitor us at home, platforms stitch together remote care. Prevention is a public message…but also a personal purchase.
The boundaries of “health” have never been more blurred. But as these lines fade—accelerated by technology—who gets care, who delivers it, and who benefits are urgent questions we must face head-on.
This event will unpick the meaty, messy, morally complex edges of the health system—where it’s expanding, fraying, and mutating. For the OHT community, it’s a chance to debate what role we all play in shaping that future so this amazing tidal wave of innovation truly works for all, with a particular focus on equity.
Come hang out with the OHT London crew for a cosy evening of brilliant questions and even more brilliant people. We’re diving into what “health” means when it moves outside traditional systems and into the messy, creative, human places where care really happens. We’ll zoom in on the technology and innovation driving these shifts - AI, platforms, data, devices -and we'll dig into equity impacts - access, bias, inclusion, power, and who profits. All the good stuff!
Who’s it for?
You, honestly. If you’re curious about health, care, life sciences, community, design, tech, policy - or just people doing things differently - pop along. Builders, founders, product folks, engineers, data people very welcome.
What’s the vibe?
Warm. Curious. A space to hear ideas, share thoughts, and meet folks you might not bump into otherwise.
We totally get that walking into a room of new faces can feel a bit daunting. Whether you're flying solo or bringing a buddy, we'll do our best to keep things relaxed, welcoming, and never awkward.
We've seen the menu...amazing sounding canapés, prosecco and plenty elderflower fizz! A true treat!
Here’s how the evening’s shaping up:
6:00–6:30 Come in, grab a drink and some excellent snacks, get comfy
6:30–6:35 Welcome from OHT Co-Directors Maxine Mackintosh & Angela Maragna
6:35–6:40 Welcome from Howard de Walden Estate CFO - Andrew Griffith
6:40–7:05 5-minute lightning talks from our brilliant speakers
Chaired by:
Morgan Fitzsimons Co-founder and Chief Customer Officer, Perci Health
Panel members:
Leonora Weil Public Health Consultant, UK Health Security Agency
Vishaal Virani Strategic Partner Manager, Health Partnerships at YouTube
Tamara Rajah Former CEO of Holland & Barrett Wellness Solutions
Renate Samson Data and AI Consultant
7:05–7:20 Panel chat
7:20–7:50 Audience Q&A – bring your questions or just listen in
7:50–7:55 Wrap-up and thanks (OHT London Lead Rosie Stewart)
7:55–9:00 Stick around for informal networking, canapés and good chats
9:00 Officially done – go home, kids!
Speakers

Charing the event:
Morgan Fitzsimons, Co-founder and Chief Customer Officer at Perci Health
Morgan Fitzsimons is the Co-founder and Chief Customer Officer at Perci Health, the UK’s largest virtual cancer clinic combining early detection and comprehensive cancer management before, during, and after a diagnosis. With a background in digital transformation and leadership at global brands, including CBS Television and the on-line retailer ASOS, Morgan applies insights from leading consumer brands to transform cancer care. She focuses on leveraging data to drive innovation, delivering a personalised and impactful, patient-first experience that supports people navigating cancer and its long-term effects.

Vishaal Virani, Strategic Partner Manager, Health Partnerships at YouTube
Vishaal started his career as an NHS doctor, and subsequently transitioned into healthcare strategy consulting. He worked in strategy consulting for four years, with a particular focus on due diligence for private equity firms, and corporate strategy for hospitals and medical technology companies.
He then chose to pursue a longstanding interest in leveraging digital health to meaningfully improve patient outcomes - initially as business development and client success lead at Ada Health, a venture-backed AI health technology company; and then managing digital health solutions for a FTSE 100 consumer healthcare company that owns global brands such as Durex, Nurofen and Dettol. Vishaal now works at YouTube, where he is building out the brand new Health offering to empower millions of YouTube users and NHS organisations across the UK and beyond.
Vishaal is also a co-founder of Doctorpreneurs, the world’s largest community of medical innovators, governor of the Royal Free NHS Trust, guest lecturer on digital health at London Business School and UCL Global Business School for Health, advisor to various health tech startups, and serves on the Our Future Health Technology Advisory Board.

Renate Samson, Data and AI consultant
Renate has an extensive background in digital, data and AI policy and advocacy and has worked at the cutting edge of critical data and internet policy issues over the past 15 years in Westminster, Whitehall and civil society including at Which? Open Data Institute and the Ada Lovelace Institute. She was CEO of the organisation Big Brother Watch. Her work has including campaigning for enhanced digital rights and greater protection online, researching the impact of data and AI on education, health, justice and social care, and developing policy relating to facial biometrics, digital identity and online fraud and scams.

Tamara Rajah, Former CEO of Holland & Barrett Wellness Solutions
Tamara Rajah is an experienced entrepreneur, executive, board director, and mother to Otto (6) and Heidi (3).
Most recently, she served on the Group Executive Board of Holland & Barrett for 5 years, as CEO of Wellness Solutions and Chief Transformation Officer. At H&B, Tamara drove the science-led transformation of the brand and its customer proposition, and led the creation of digital preventative health programmes for customers to build healthy habits in nutrition, fitness, sleep and emotional wellbeing.
She currently serves on the Boards of Nationwide and of parkrun Global and has previously been a non-executive director of Holland & Barrett, the ScaleUp Institute, London & Partners and Entrepreneur First.
Earlier in her career, Tamara was one of the youngest Partners at McKinsey & Company, spending over a decade in its European and North American healthcare practices. She went on to found and scale an award-winning, venture-capital backed global consumer healthcare platform supporting those living with chronic conditions.
Tamara received an MBE for services to Technology and Entrepreneurship in the 2020 Queen's Birthday Honours.

Leonora Weil, Public Health Consultant, UK Health Security Agency
Dr Leonora Weil has over 20 years’ Public Health experience underpinned by early clinical practice as a hospital doctor with a longstanding commitment to health equity, applied academic research and system-wide improvement. She has worked across national, regional, and local levels including senior roles at the UK Health Security Agency, the Department of Health and Social Care, NHS England and local government. As Director of the London NHSE Legacy and Health Equity Partnership, she delivered an innovative initiative focused on closing the equity gap in immunisations, screening and access to health. Most recently she held the role of Deputy Director for Health Equity and Inclusion Health at UKHSA with a portfolio that included inclusion health, children, adult social care, prisons and community engagement, working to ensure that no community is left behind. She is an established author and experienced public communicator, known for combining frontline clinical and research insight with strategic leadership, health system innovation and cross sector collaboration.
Huge thanks to our hosts, the Harley Street Health District, and Hale House – the district’s new home for HealthTech innovators for helping make this event possible.
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