The Hub-and-Spoke Model: How One Centre Can Reach Hundreds of Thousands

There is a tempting but wrong way to expand healthcare access: build more big centres. It is wrong because big centres are expensive, slow to build, and still require people to travel to them. You end up with a few more dots on a map and the same fundamental distance problem.

The hub-and-spoke model takes a different shape, and it is the shape our work is built around.

The idea

At the hub is a fully equipped, trusted, accredited diagnostic centre — in our case, Anubhav Life Care in Barasat. The hub is where the serious capability lives: confirmatory testing, clinical judgement, quality control, the lab.

The spokes are light. They are screening points that go out into the communities around the hub — community camps, routine screening built into local visits, points where a health worker with a smartphone-powered device can do a painless first look. The spokes do not need to replicate the hub's expensive machinery. They need to do one thing well: find the people who should travel to the hub.

The flow runs both ways. People are screened at the spokes; those who are flagged are referred and supported to reach the hub; the hub confirms, treats, and refers onward what it cannot handle.

Why the economics work

The reason this scales is that the costly part — the hub — is shared across a very large population, while the cheap part — the spokes — is what multiplies. Adding reach means adding more light screening points, not more heavy infrastructure. A non-invasive device that costs under $7 to make and runs off a phone is precisely the kind of "spoke" technology that makes this affordable. You can put a lot of them out there.

Within reach of our hub — Barasat town and the surrounding blocks — sits a population of more than 700,000 people, the majority rural or semi-urban and lower-income. Reaching all of them by asking them to come to one centre is hopeless. Reaching them by pushing painless screening out to where they are, anchored to one trusted hub, is not.

Why the hub has to be trusted

The model only works if the hub is genuinely capable and genuinely trusted. A screening flag is worthless if the place it refers you to cannot be relied on. This is why the accreditation and the established local reputation of the centre are not background details. They are load-bearing. People follow a referral to a place they trust. The whole structure depends on that trust existing at the centre.

What we are building toward

The version we are scaling is exactly this: a strong, accredited hub, and a growing network of light, low-cost screening spokes reaching deeper into North 24 Parganas. The aim is not a handful of impressive buildings. It is a wide, thin, trustworthy net that catches problems early across a whole district, and a strong centre behind it that knows what to do with what the net catches.