Large service desks run on tiers for a simple reason: not every question deserves the same person's time. Tier one filters and answers the routine stuff. Tier two handles what needs real expertise. Tier three - the specialists, the engineers, the people you don't want fielding a password reset - only sees what actually needs them. The whole structure exists to protect expensive attention.
A two-practitioner clinic obviously isn't running a formal three-tier desk. But it has exactly the same problem in miniature: a finite amount of practitioner time, a mixed stream of enquiries, and no formal system for deciding what deserves it. In practice, "the system" is usually whoever picks up the phone - which means either everything gets treated as urgent, or nothing does.
What tier zero actually is
Bigger service organisations have started calling the layer before tier one "tier zero" - self-serve answers, chatbots, knowledge bases - the stuff that resolves a question before it ever becomes a ticket. For a clinic, tier zero is whatever answers "are you open Saturdays" or "do I need a referral" without a staff member having to stop what they're doing.
Done well, tier zero isn't a lesser version of a receptionist. It's a filter that makes sure the questions that do reach a person are the ones that actually need one - and it should be honest about its own limits, handing off immediately the moment a question gets clinical, sensitive, or genuinely complicated.
What that looks like in practice
We pulled real conversation logs from a practice already running RIKO as its tier zero - the ordinary flow of booking questions, fee questions, and "is there parking" that make up most first contact.
That's not a claim that an AI receptionist never hands off - RIKO is built to escalate immediately the moment a message touches anything clinical, sensitive, or genuinely ambiguous, and it will happily say "I don't know, here's how to reach the team" rather than guess. It's a reflection of what most real front-desk traffic actually is: administrative, not clinical. Tier zero doesn't need to be clever. It needs to be honest about what it can and can't answer, and fast about the part it can.
Where the line should sit
- Tier zero: hours, fees, parking, "do you take new patients," booking logistics, telehealth availability - anything that's true regardless of who's asking.
- A person, immediately: anything clinical, anything distressed, anything that sounds like a complaint, anything the system genuinely isn't sure about. A good tier zero routes these without hesitation rather than attempting an answer.
- The point of the split: not to reduce headcount. It's to make sure a practitioner's attention goes to the five calls that actually needed a practitioner, not the fifty that just needed an answer.