What an Hour Really Costs in a One-Chair Practice

The math most one-chair practices actually use

Ask a solo chiropractor or physical therapist how they arrived at their visit price, and the answer usually involves supplies, a little bit of labor, and a number that felt roughly right compared to competitors down the street. Gloves, table paper, a modality or two, maybe fifteen minutes of an assistant's time. Add those up, tack on a margin, and call it a price.

That number isn't wrong. It's just incomplete. It answers "what does this visit cost to deliver" without answering "what does this hour cost to exist." A one-room practice has rent whether a patient is on the table or not. It has an equipment loan payment on the adjusting table, the dental chair, or the ultrasound unit that comes due on the first of the month regardless of how the schedule filled up. It carries liability insurance, a biller or front-desk person, utilities, software subscriptions, and often a loan for the buildout itself. None of that shows up in a per-visit supply calculation, and all of it has to come from somewhere.

What's missing from the per-visit number

The costs that get left out of a supply-and-labor calculation tend to fall into a few categories:

  • Occupancy: rent or mortgage, property insurance, utilities, maintenance
  • Equipment financing: monthly payments on tables, chairs, imaging or diagnostic equipment, even if the loan itself isn't "per patient"
  • Insurance: malpractice or professional liability, general liability, workers' comp if there's even one employee
  • Administrative labor: front desk, billing, scheduling, whether that's a part-time hire or the owner's own unpaid hours
  • Software and licensing: practice management systems, continuing education, state licensing fees

Industry benchmarking from the Medical Group Management Association tracks exactly this kind of overhead across practices of all sizes, and its data shows operating costs for medical practices have continued climbing, with non-labor overhead now a meaningful and growing share of what it costs to keep a practice open. A one-room operation carries a smaller version of the same structure. The categories don't disappear just because there's only one chair.

Scheduled hours are not billable hours

Here's where the math usually breaks down a second time. A practitioner who schedules eight hours a day assumes those are eight productive hours. They rarely are.

Between patients there's charting, room turnover, a phone call that runs long, a supply restock. No-shows and late cancellations remove entire slots that can't always be refilled on short notice. A slow Tuesday in February looks nothing like a fully booked Thursday in September. Research published in PLOS ONE examining clinic scheduling found that missed appointments can strip a meaningful percentage of a clinic's potential revenue even when the schedule looks full on paper, because the slot itself was never recoverable once the patient didn't show.

The practical result: a practitioner who blocks 40 hours a week for appointments might realistically bill somewhere between 25 and 32 of them, depending on specialty, no-show rate, and how much administrative work leaks into the day. That gap between scheduled and billable hours is exactly the same mechanic that shows up when a full appointment book doesn't guarantee a profitable salon or when a full schedule of plumbing calls still leaves a thin margin. A calendar that looks busy and a calendar that's actually converting into paid, delivered hours are two different documents.

Building the real hourly overhead rate

The U.S. Small Business Administration's break-even formula is built for exactly this kind of question: fixed costs divided by the volume that has to absorb them, which is the standard method the SBA recommends for figuring out what a unit of output actually needs to cover.

To apply it to a one-chair practice, pull together numbers most owners already have on a bank statement or a lease:

  1. List every fixed monthly cost. Rent, equipment loan payments, insurance premiums, software, admin wages, utilities, and any loan payment tied to the buildout. Skip supplies and per-visit labor for now; those get handled separately.
  2. Add them up. A modest example: rent $3,000, equipment financing $600, insurance $400, part-time front desk $2,500, utilities and software $300. Total fixed monthly cost: $6,800.
  3. Estimate realistically billable hours per month, not scheduled hours. If the practice is open 40 hours a week but no-shows, admin time, and slow stretches bring actual billed hours to 25 a week, that's roughly 108 hours a month (25 times 4.33 weeks).
  4. Divide fixed costs by billable hours. $6,800 divided by 108 comes out to about $63 an hour. That's the overhead cost of simply keeping the doors open, before a single glove or minute of hands-on labor is counted.
  5. Add direct costs and margin. Layer in supplies and direct labor per visit, then the profit margin the owner actually wants, and compare the total to what's currently being charged.

Checking the current price against the real number

Once that $63-an-hour figure (or whatever a given practice's version of it is) exists, it becomes a real yardstick. A thirty-minute adjustment priced at $45 is not covering even the overhead share of that half hour, let alone supplies, labor, or profit. A sixty-minute physical therapy session at $90 is closer, but still thin once direct costs are layered in.

The number also moves with the seasons. A slow month drops billable hours without dropping rent or the equipment loan payment, which is why the same fixed costs divided by fewer hours produces a higher true cost per hour in January than in September. Owners who price once a year and never revisit it are often pricing for their busiest month and eating the loss during their slowest one.

The fix isn't necessarily a price increase across the board. Sometimes it's tightening the no-show rate, sometimes it's renegotiating equipment financing, sometimes it's accepting that a $45 visit only works if the schedule genuinely runs at 32 billable hours a week rather than 22. Either way, the number has to exist before any of those decisions can be made on purpose instead of by feel.

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