Patient-Owned Health Infrastructure

Your complete health story.
One secure record.
Available wherever care happens.

CareUmbrella turns scattered health information into one secure, patient-owned health record. Medical records, medications, lab results, wearable data, AI conversations, and caregiver notes are organized on your device and instantly shareable with the people you trust.

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Private by architecture

Share in seconds

Built for families and care circles

Ready anywhere and anytime

Patient-owned
The individual or trusted carer controls the record

On-device AI
Intelligence without a central data store

Peer-to-peer sharing
Permissioned access that can be revoked

Aging first
Designed for complex, fragmented care

Why CareUmbrella

One record. Many supports connected.

Health information is scattered across hospitals, clinics, pharmacies, paper folders and family group chats. CareUmbrella brings it together so the right person can see the right information at the right time.

Organize everything

Add records from portals, PDFs, photos, and trusted sources. On-device AI helps turn them into a clear personal health record.

Secure and private

Your data stays on your device. You decide who can see it, what they can see and for how long.

Share instantly

Give loved ones, caregivers or clinicians secure peer-to-peer access through a simple QR scan.

Built around the person

Designed for patients, aging adults, kids with special needs, families and the professionals who support them.

How it works

Four simple steps to better care, everywhere.

Collect

Bring together discharge summaries, medication lists, lab reports, photos, notes and other health information.

Organize

CareUmbrella structures the information into a clear, chronological record stored securely on the device.

Share and approve

A caregiver or clinician scans a QR code and requests access. The record owner approves or refuses the request.

Use it when it matters

Carry an emergency-ready summary and a fuller history into new hospitals, clinics, home care and travel.

From scattered records to one view

Turn fragmented health information into a practical personal record that travels with the individual.

Secure peer-to-peer sharing

Share with loved ones, caregivers and clinicians without placing the entire record in a central CareUmbrella database.

Add a caregiver with a scan

Access requests appear directly on the record owner’s device, where they can be approved, limited or refused.

Emergency-ready information

Make allergies, medications, major conditions, devices and key contacts easier to find when every minute matters.

Privacy by architecture

Your health information should belong to you.

CareUmbrella is designed around patient ownership. The record is encrypted and stored on the user’s device, while sharing occurs peer to peer. On-device AI provides organization and insight without requiring the medical record to be held in a central CareUmbrella database.

Stored on your device
Your record stays under your control.

Permission-based sharing
Approve, limit or revoke access when you choose.

On-device intelligence
Organize information without surrendering the record.

The care community

One person, surrounded by the right people.

Aging care often involves family, physicians, nurses, personal support workers, emergency teams and community providers. CareUmbrella helps each trusted person work from the same patient-owned source of truth.

Older adult surrounded by family and care professionals

Why now

Care moved everywhere. The record did not.

Aging adults now move between hospitals, specialists, rehabilitation, home care, travel and family caregivers. Their information remains fragmented across institutional systems. At the same time, on-device AI and secure peer-to-peer technology now make a truly patient-owned record practical.

A massive coordination problem

Families are already acting as the integration layer between disconnected providers, portals, PDFs and paper records.

A focused entry market

We start with aging adults and caregivers, where missing information creates immediate clinical, emotional and operational costs.

A platform, not another portal

The personal record becomes the coordination layer through which families, clinicians and care organizations collaborate.

Privacy as infrastructure

Local storage and peer-to-peer sharing reduce dependence on a central repository of identifiable health information.

CareUmbrella founders Hayman Buwan and Nisten Tahiraj

Built by caregivers

Two careers converging on the same problem.

One founder spent decades understanding where healthcare loses continuity. The other has built frontier AI infrastructure and products at scale.

Hayman Buwaneswaran Buwan, MD

Co-founder and CEO · Rehabilitation & Geriatric physician · Aging and home-care expert

More than two decades across geriatric rehabilitation, eHealth, telemedicine, home care strategy and clinical research. Founded COVIDRehab and CommunitySOS, advised largest home care agency in Canada, led the 2014 UK DementiaHack Grand Challenge-winning team, and turned years coordinating other's and his father's complex medical care into the insight behind CareUmbrella.

X ↗GitHub ↗

Nisten Tahiraj

Co-founder and CTO · Frontier AI engineer

Built distributed inference and GPU orchestration for generative-video systems, helped build and scale DoctorGPT to more than 500,000 users, contributed models and datasets to Hugging Face, helped run an early CPU mixture-of-experts model, published work on on-device medical AI, and won NVIDIA Spark Toronto and NASA Space Apps Ontario hackathons.

Hugging Face ↗GitHub ↗X ↗

“The Personal Health Record is just the beginning. The future of health and home care is patient-owned, AI-enabled care coordination.”

Early access

Help shape the future of patient-owned health records.

Join families, caregivers, clinicians, care organizations and early partners helping shape a safer, patient-owned future for health information.