Networking for Pharmacies and Dental Clinics

Pharmacies and dental clinics share a problem that rarely gets discussed: they hold the most sensitive data any small business handles, health data, in a room whose network is laid out like an ordinary shop. One provider-supplied router, one password everybody uses, and a card terminal riding on the same network as patients' phones. This guide reorders things, starting with what matters most.

Who uses the network

• The prescription or records computer. Many are now web-based, so an internet outage means service stops.
• Card terminal and QRIS. Must stay responsive at peak hours, and must not share a network with unknown devices.
• Imaging equipment, especially in dental clinics: panoramic X-rays and intraoral sensors send tens of megabytes to the dentist's computer.
• CCTV cameras, usually pointed at the controlled-medicine shelves and the till.
• Waiting patients' phones. The most numerous users, and the least known.

First step: separate, don't speed up

The first temptation when a network feels slow is to upgrade the plan. For a clinic, the right order is to separate first. Create at least two networks:

• A clinical network for the records computer, imaging equipment, prescription printer, and card terminal. Its password is known only to staff, and never taped to a wall.
• A guest network for waiting patients, capped at 3 to 5 Mbps per device and with no access to the clinical network.

The steps are in separating a guest network, and the specific needs of payment terminals in networks for tills and card terminals. Clinics already running business-class equipment can go further with VLANs, which separate traffic at the hardware level rather than just by Wi-Fi name.

Whatever stays put, put on cable

The prescription computer, the X-ray unit, and the CCTV recorder don't move. Cabling them gives you three things at once: speed that doesn't fluctuate, one fewer device competing for air, and one fewer wireless way in. For a small room, an eight-port switch is plenty; guidance in choosing a network switch and choosing LAN cable.

Backup internet isn't a luxury

A pharmacy that can't open its prescription system can't serve anyone, and a queue can't be asked to wait for a technician. A dual-WAN router with a data SIM as backup switches traffic automatically when fibre drops. See backup internet for businesses. Add a UPS for the router, switch, and ONT so a power flicker doesn't cut a transaction in progress.

Patient data: obligations, not suggestions

Health data counts as specific personal data, and the rules around it are stricter than for ordinary data. Several points bear directly on the network:

• The records computer must not be on the guest network. The most commonly broken rule, and the easiest to fix.
• Cameras must not point at the prescription screen or at examination areas. The rules are in CCTV and privacy, and securing the cameras themselves in Wi-Fi CCTV security.
• The prescription printer keeps copies of what it prints. Set an admin password and enable secure print where available. See securing a network printer.
• If the guest Wi-Fi login page collects patient numbers, that is personal data collection with all the duties attached. Read rules on collecting customer data and the Personal Data Protection Law. For most pharmacies, collecting nothing is the most restful option.

Placement in a room full of metal

Pharmacies are full of metal shelving, and dental clinics have treatment chairs, instrument cabinets, and X-ray rooms with partly lead-lined walls. All of it reflects and blocks signal. Put the router in the middle of the room and as high as practical, away from metal shelving and hot equipment. A lead-lined X-ray room is effectively impenetrable to Wi-Fi; if something inside needs the network, run a cable. General guidance in router placement and Wi-Fi interference.

Guest Wi-Fi worth the waiting time

Pharmacy patients wait five to fifteen minutes, dental patients often longer, and waiting patients are frequently anxious. Simple guest Wi-Fi is enough: one QR code on the waiting table, a password changed periodically, and a speed cap so one person can't take the lot. No login page needed, no data collection needed.

The order to follow

Separate the clinical network from guests before upgrading the plan. Cable the prescription computer, imaging equipment, and CCTV. Arrange backup internet and a UPS, because service can't stop. Treat patient data as specific data: not on the guest network, not on camera, not left in the printer. Simple guest Wi-Fi is enough.

Frequently asked questions