Feature design

B2B2C Healthcare

COVID-19 Response

Telemedicine

Medstar & Medcard24

Medstar & Medcard24

Building a Telehealth Ecosystem

Building a Telehealth Ecosystem

Two healthcare platforms. No remote-care workflows. Six weeks to change that.
Two healthcare platforms. No remote-care workflows. Six weeks to change that.

Medcard24 was the patient-facing platform for finding doctors, booking appointments and managing care. Medstar supported doctors and clinics with clinical workflows and patient information. They had no connected remote-care workflow.

Appointments

120K

per day through the scheduling flow
Appointments

120K

per day through the scheduling flow
Offline visits

-48%

reduction
Offline visits

-48%

using the interface I designed

Physicians

37K+

working daily in the doctor dashboard
Physicians

37K+

working daily in the doctor dashboard
App Store

4.8

rating for the patient-facing app
partner clinics across major cities
App Store

4.8

partner clinics across major cities
Context

When healthcare suddenly had to move online

Medstar and Medcard24 were two established healthcare platforms supporting doctors, clinics and patients — but they were not connected around remote care.

Patients couldn't consult doctors remotely, request prescriptions online or communicate with healthcare providers outside physical appointments.

When COVID-19 lockdowns began, this became critical.

Doctors were seeing extremely high patient volumes, while elderly and high-risk patients needed to avoid unnecessary visits.

The business needed to establish remote healthcare quickly — without yet knowing what the right telehealth model should look like.

The obvious answer was:

Build video consultations.

But I wanted to understand one thing first:

Would video actually work for the people who needed remote healthcare most?

COVID-19 Crisis Impact

COVID-19 Crisis Impact

When COVID-19 made in-person care unsafe, the gap between the two platforms became critical. Patients needed remote access to doctors, while clinics needed a way to deliver and manage care remotely.

The initial brief was simple: build video consultations in six weeks.

The Challenge

We had six weeks — and a lot we didn't know

My Role

I owned the end-to-end design process, from research and problem framing through to product decisions, interaction design, testing and developer handoff.

User research

User flows

Information architecture

Prototyping

High-fidelity Design

Usability testing

Developer handoff

Constraint

Phase 1 had to be researched, designed and delivered in six weeks.

There was no time for a traditional:

Research

Design

Development

sequence.

We had to identify the riskiest assumptions quickly, test them, and use the evidence to decide what was worth building.

 My Team

Sole Product Designer

Sole Designer

1 Product Manager

1 Business Analyst

4 Developers

1 QA Engineer

The challenge wasn't only speed.

We also had to determine what remote care should actually look like.

The team initially assumed video would be the primary consultation channel. I needed to validate that assumption and decide what to build before we scaled the solution.

Research

The initial assumption was video

We needed to test whether video could serve patients, doctors and clinics effectively.

What we needed to learn
  1. Access
Access

Could patients actually access video consultations?

  1. Accessibility
Accessibility

Would video work for elderly and accessibility-constrained users?

  1. Operations
Operations

What would doctors and clinics need to deliver remote care?

What research revealed
Research revealed the gap before we built the wrong thing.
Clinics
District clinics without cameras
At the start of lockdown, nearly a third of clinics hadn't upgraded their hardware. Doctors couldn't go on video either.
29%
of district clinics
Population 65+
Needed a different access path
Standard interfaces weren't accessible. We added phone call consultations and family account access in the app.
17%
of the population
Accessibility
Chat — the only viable channel
Patients with hearing impairments couldn't use phone or video. Chat became their only consultation option — unplanned until research.
+1
channel added, unplanned

A video-first experience would have excluded the patients who needed remote care most. Chat had to become a first-class channel, not a fallback.

Research synthesis & Ideation

Mapping insights to Action

Consolidating primary clinical insights from over 40 user interviews to prioritize product features for the remote care platform launch.

Research Finding

User Need

Design Opportunity

Many patients didn't have webcams or struggled with video technology.

Access care in a way that works for them, not just video.

Offer chat consultation alongside video as an equal option.

Elderly patients needed simpler, less technical experiences.

An experience that feels easy, safe and guided.

Simplify flows with clear guidance at each step.

Doctors were overwhelmed with in-person visits and repetitive follow-ups.

Spend more time on patients who truly need in-person care.

Enable effective virtual consultations and follow-ups.

Remote care created scheduling complexity for clinics.

Coordinate availability and manage capacity smoothly.

Introduce admin tools to manage availability & confirm schedules.

Patients needed prescriptions and care continuity without visiting the clinic.

Receive prescriptions and continue care remotely.

Digital prescriptions, access to care & history in one place.

Criteria

Insight

Webcam or good device required

Webcam or good device required

Chat works for patients without webcams or with low-tech devices.

Chat works for patients without webcams or with low-tech devices.

Chat works for patients without webcams or with low-tech devices.

Low bandwidth / unstable connection

Low bandwidth / unstable connection

Chat is more reliable in poor network conditions.

Chat is more reliable in poor network conditions.

Complex or sensitive consultations

Complex or sensitive consultations

Video is better for assessments where visual cues matter.

Video is better for assessments where visual cues matter.

Quick follow-up / simple questions

Quick follow-up / simple questions

Chat is faster and less intrusive for short conversations.

Chat is faster and less intrusive for short conversations.

Accessibility (hearing, motor, etc.)

Accessibility (hearing, motor, etc.)

Chat can be more accessible in many situations.

Chat can be more accessible in many situations.

No single channel works for every patient or every consultation type. We designed both.

No single channel works for every patient or every consultation type. We designed both.

The Product Decision

Video-first wasn't enough

The research changed the direction of the product. Instead of treating video as the default and other channels as secondary, I advocated for a multi-channel model.

Research shifted the product direction from:

How do we put a consultation on video?

to:

How do we make essential healthcare accessible remotely through different channels?
Video + Chat

Video worked well for consultations where visual interaction mattered.

Chat provided a lower-friction alternative for users without suitable hardware, poor connectivity, accessibility constraints or simple follow-ups.

No single channel worked for every patient or every consultation type. We designed both.

The problem was bigger than the consultation

Remote healthcare wasn't only a patient–doctor problem

As I mapped the wider journey, another gap became visible. Patients needed to book and attend consultations. Doctors needed to manage those consultations. But someone also needed to coordinate schedules and operational workflows.

The original concept was primarily focused on:

Patient
Doctor

I introduced the need for a third workflow:

Patient
Administrator
Doctor
The product evolved through three shifts
The product evolved through three shifts
Patient + Administrator + Doctor
Video-first
Video + Chat
Patient + Administrator + Doctor
Patient + Administrator
+ Doctor

A connected telehealth ecosystem

We connected the patient and clinical platforms and introduced the missing admin workflow to support the complete remote-care journey.

Patient

Find doctor

Book appointment

Video / Chat consultation

Receive prescription

Follow-up care

Medcard24

(Patient App)

Search & discover

Manage appointments

Video / Chat interface

Messages

Prescriptions

Secure data

Sync

Medstar

(Clinical Platform)

Patient records

Clinical context

Consultation outcomes

Prescriptions

Analytics

Doctors

View schedule

Consult patient

Create prescription

Follow up

Clinic Admin

Manage availability

Confirm schedules

Coordinate care

ECOSYSTEM EXPANSION

IDIS2GO (Remote Diagnostics)

Show2Doc (Doctor–Patient Communication)

Additional products I designed to extend the remote-care ecosystem.

What I Designed

Connecting the experience across the ecosystem

I led design of the core end-to-end workflows across the patient, doctor and administrator experiences, translating the product strategy into a shippable experience across Medcard24 and Medstar.

From booking to prescription
From service logic to product interfaces
Designing Under Pressure

Research, design and development happened together

With only six weeks for Phase 1, research, design and development happened in parallel.

I worked directly with the team to test the highest-risk assumptions and adapt the design as technical constraints emerged.

My role was therefore not only to produce screens.

I decided what not to build, what needed to change, and what had to be prioritised first.

Every decision balanced:
User needs
Healthcare workflows
Technical feasibility
Six-week delivery constraint
Patient experience — Medcard24
Booking and managing appointments from the patient side.
Clinical experience — Medstar
Managing the consultation and patient workflow from the doctor side.
Clinical experience — Medstar
Impact

From emergency response to a scalable remote-care service

The immediate goal was to establish remote healthcare during lockdown. The solution became part of a wider ecosystem connecting patients, doctors and clinics across Medcard24 and Medstar.

Product scale

37K+

physicians on platform

120K

appointments at peak

Product outcomes

4.8

App Store rating

48%

reduction in offline visits

The biggest product change was not adding video. It was creating a connected remote-care model across patients, doctors and clinics.

What I Would Do Differently

Validate the riskiest assumptions earlier

The project moved extremely quickly, but several important discoveries happened after the initial direction had already been established.

Today, I would front-load three areas.

01 — Device access

Validate hardware and connectivity constraints before committing to a video-first concept.

02 — Accessibility

Include elderly users and low-tech scenarios as explicit research criteria from the beginning.

03 — Operational workflows

Map administrators and clinic operations alongside patient and doctor journeys from day one.

The Takeaway

I didn't just design a telehealth feature. I redefined the problem.

The project started with a request to build video consultations. Research showed that the real challenge was broader: making remote care accessible and operationally viable across patients, doctors and clinics.
I shifted the team from a video consultation feature to a connected telehealth ecosystem. Six-week Phase 1 delivery window

Med: Crisis-Driven Innovation

Med: Crisis-Driven Innovation

A platform built in 6 weeks to keep healthcare accessible when clinics couldn't safely open their doors.

A platform built in 6 weeks to keep healthcare accessible when clinics couldn't safely open their doors.

6-week launch

Rapid MVP Deployment

Core consultation flow designed and shipped during active lockdown

💬

Video + Chat

Two consultation modes so no patient gets excluded


👥

Multi-User Platform

Coordinated workflows for patients, doctors, and administrators

⚖️

Legal compliance

Healthcare Compliance

Medical regulations shaped every flow from the start


Accessibility Focus

Accessibility Focus

WCAG 2.1 compliant design for users across all age groups and abilities

🎯

Admin persona added

Crisis Response Design

Scheduling ownership removed from overloaded doctors


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Let's connect

If you think we might be a good fit — let's talk.
nataliiayarko.pd@gmail.com

+44 78 6724 1715

© Nataliia Yarko, 2026