Patient, Participant and Referral Concentration in Healthcare Valuations

What does concentration mean in a healthcare valuation?

Concentration is the degree to which earnings depend on a small number of sources. In a healthcare business those sources are rarely just customers: they include the patients or participants, the practitioners or agencies that send them, the scheme that pays, and the intermediary that decides where the funding is spent.

Value rests on maintainable earnings, being the profit the business can reasonably be expected to repeat under normal conditions. Concentration does not usually make this year's profit smaller. It changes the confidence that the same profit will be there next year, particularly once the current owner has left. That confidence is most of what a capitalisation multiple, the figure applied to maintainable earnings to reach a value, is measuring.

A buyer prices that risk whether the valuation went looking or not. It sits in enterprise value, being the business and its operating assets independent of how they are funded, and flows through to equity value once borrowings are deducted and surplus assets added. Market value, the price a willing but not anxious buyer would agree with a willing but not anxious seller at arm's length, is not the same as a price actually paid, which may reflect one buyer's position or a structure that parks the risk in an earnout.

The types of concentration that matter in healthcare

Grouping every dependency under "customer concentration" hides the differences that decide how a buyer reacts. Five types matter, and one business often carries several.

• Patient or participant concentration, a large share of revenue from a few individuals, is uncommon in general practice and ordinary in supported independent living, paediatric therapy and complex care, where one person absorbs many funded hours a week.
• Referrer concentration is revenue arising from patients sent by a few practitioners or organisations. Specialist practices, diagnostic businesses and much of allied health sit downstream of someone else's decision.
• Payer or contract concentration is dependence on a few funding sources: Medicare, the NDIS, a workers compensation insurer, the Department of Veterans' Affairs, a private health fund or a corporate contract. The payer sets the price and the rules.
• Intermediary concentration is dependence on those who direct funded work: NDIS support coordinators and plan managers, aged care case managers, insurer case managers and employee assistance program administrators. They neither pay nor receive the service, but they decide who gets it.
• Practitioner concentration, covered in how practitioner dependence affects business value, is dependence on one clinician who personally holds the relationships. Diversified patients plus one indispensable principal is still concentrated.

How is concentration measured?

The core analysis is revenue by source, ranked on each external dimension: by patient or participant, by referrer, by payer and by contract. The share held by the largest source, the largest five and the largest ten is read off each ranking. Ranking revenue rather than visits matters, because appointment counts hide the difference between many short consultations and a few long funded ones. Four refinements do the rest of the useful work.

• A defined period and stated definitions. A rolling twelve month window smooths seasonality and school terms, and repeating it for two or three periods shows whether the concentration is stable, worsening or a one off. An "active patient" count means little unless the definition is stated.
• Churn and retention. A practice whose top referrers change every period has a diversified list and an unstable business; a small stable list with long tenure is concentrated and predictable. Measure sources retained, gained and lost, with the revenue attaching to each.
• Contribution, not just revenue. The largest source by turnover is often not the largest source of earnings, because rostered supported independent living hours, scheme priced work and discounted contract work each carry a thinner margin than private billing.
• Terms. Normalisation, being the adjustment of reported profit to what the business would earn on commercial terms under normal ownership, matters more when revenue is concentrated: a large account priced below market, a related party arrangement or a rate a buyer could not repeat is adjusted before the earnings are capitalised.

Payer concentration also shows on the balance sheet: a single scheme concentrates the debtors ledger, so working capital, being the debtors, stock and prepayments less trade creditors needed to trade normally, has to reflect how slowly that payer pays and how often claims are reworked.

Where a system cannot produce these rankings they are rebuilt from billing records, and the valuation says so. What information is needed covers the wider request.

Why a referral stream is not a contract

Referral concentration is often treated as customer concentration. The regulatory position is weaker.

Services Australia states that a practitioner referring a patient for specialist treatment under Medicare does not need to refer to a specific specialist or consultant physician, that patients can choose where to present the referral, that a general practitioner referral lasts twelve months from the specialist's first meeting with the patient unless a different duration is noted, and that a specialist to specialist referral is valid for three months unless the patient is admitted. The referral is portable, it expires, and the referring practitioner controls the flow.

The pattern repeats across the funded allied health programs. Services Australia states that a patient with a general practitioner chronic condition management plan may be eligible for up to five individual allied health services per calendar year, that the referring practitioner decides whether the patient would benefit, and that the provider must report to the referrer after the first and last service. The general practitioner is the gate, the episode is capped, and continuation is decided outside the practice.

For mental health, the Department of Health, Disability and Ageing states that under the Better Access initiative eligible patients with a clinically diagnosed mental disorder can claim a Medicare benefit for up to ten individual and ten group mental health treatment services per calendar year, on a referral from a general practitioner or prescribed medical practitioner at the practice where they are enrolled for MyMedicare or from their usual medical practitioner, with direct referrals from psychiatrists and paediatricians also accepted. A psychology practice built on a handful of referring practices is exposed at the referrer and at the annual cap.

Sector patterns

NDIS providers

Supported independent living produces the most acute participant concentration in Australian healthcare: a few participants in a few homes can carry most of the revenue. The NDIS Quality and Safeguards Commission states that participants must not be automatically moved to a new owner and need to be able to find a new provider if they want to, and that a change of ownership notification should say how many participants receive supports and how they are being informed and supported to exercise choice and control.

Nor does the registration travel freely. The Commission states that a registration is linked to a single ABN and is not transferable, so whether the entity holding it is the entity being sold is part of the analysis. It also states that for changes of ownership from 1 July 2026 it must be notified as soon as possible, and that a buyer of a business delivering high risk or complex supports must start an audit no later than three months after the purchase where the change significantly affects the organisation or its governance.

Intermediary concentration sits alongside, and at the time of writing it is being redesigned. The Department of Health, Disability and Ageing states that from 1 October 2027 only providers on a panel set up by the National Disability Insurance Agency will be allowed to deliver plan management, and that from 1 July 2028 support coordination will not be funded individually in participant plans, with the Agency appointing providers directly through a merit based process. It also states that from 1 January 2028 access will rest on a standardised assessment of functional capacity, and that children aged eight and under with developmental delay or autism and low to moderate support needs will move to Thriving Kids. What reduces the value of an NDIS business covers the wider effect.

Specialist medical practices

A specialist practice can have thousands of patients and still be concentrated, because the patients are the output and the referrers are the input. Where most new episodes come from a few general practices, one corporate medical centre or one hospital, the valuation examines the tenure of those relationships and whether they follow the specialist or the practice. Where the specialists are contractors billing through a service entity, the referral relationships and the service agreements usually rest with the same few individuals, so concentration and contractor arrangements are read together. How to value a medical practice in Australia goes further.

Physiotherapy and other insurer funded practices

Payer concentration is clearest in a practice weighted to compensable work. WorkSafe Victoria publishes a physiotherapy services fee schedule setting a maximum payment rate for each item, with restricted consultations available only on prior approval, and it issues a schedule with effect from 1 July. That revenue is not priced by the practice, its volume depends on claim numbers and insurer decisions, and a scheme review can reset both. How to value a physiotherapy practice covers the rest.

Psychology practices

Psychology practices commonly hold two concentrations at once: a small group of referring general practices feeding the Better Access caseload, and a contracted program such as an employee assistance arrangement or an insurer panel. Contracted work looks like diversification because it is not a single patient, but a contract that can be re-tendered is a single source, so the valuation reads the term, the notice period, whether the benefit is assignable and what a change of control triggers. Psychology practice valuations sets out the sector view.

Pharmacy, dental and veterinary practices

Community pharmacy shows low patient concentration and material prescriber concentration: a pharmacy whose script volume largely originates from one co-located medical centre depends on that centre's lease, doctor roster and succession. The approval is tied to the site. The Department of Health, Disability and Ageing states that under section 90 of the National Health Act 1953 a pharmacist must apply for approval to establish a new pharmacy or change the ownership of an approved pharmacy, and that PBS medicines may only be supplied at or from the approved premises listed in the approval. General dental practice is nearly the opposite, with a broad self-referring patient base, while orthodontic, periodontal and oral surgery practices sit downstream of the general dentists who refer. Veterinary practice has almost no third party payer, so client concentration is low in a companion animal clinic, although a referral hospital carries referrer risk and a mixed practice with two or three large livestock accounts is concentrated.

Home and community care

The client is an individual while the funding, the entry pathway and the price are set centrally. At the time of writing the Department of Health, Disability and Ageing states that Support at Home started on 1 November 2025, replacing the Home Care Packages Program and the Short-Term Restorative Care Programme, that ongoing services are funded through eight classifications and that participant contributions are set by government. Revenue per client is capped by classification rather than by what the provider charges. Government funding exposure and healthcare business value follows that thread.

How does a valuer reflect concentration in the conclusion?

The first place is maintainable earnings, adjusted only where something has already happened or is known: a major referrer has retired, a contract has been given notice, or a funding setting has been announced as changing. Speculation belongs in the risk assessment, not the earnings line. What is maintainable earnings explains the normalisation that produces the figure.

The second is the capitalisation multiple or the discount rate. Under capitalisation of future maintainable earnings, the earnings are multiplied by a factor reflecting the risk and growth prospects of the business, and concentration is one of the inputs that moves it. Under a discounted cash flow, which values forecast cash flows at a rate reflecting their risk, the same information affects the rate and can be modelled by running the forecast with and without the largest source. Healthcare business valuation methods compares the approaches.

The third is goodwill, being the value of a business above its identifiable net assets. Personal goodwill attaches to an individual and cannot be sold; transferable, or commercial, goodwill attaches to the business through systems, staff, documented arrangements and relationships held with the organisation rather than the person. Concentration is often the clearest evidence of which is which: where the largest referrers deal with the principal by name, the goodwill is personal to a significant degree, and restraints and handover periods are attempts to carry part of it across. Does a medical practice have transferable goodwill works through that assessment.

A net asset approach, valuing the identifiable assets less liabilities, often decides the outcome where little goodwill would survive a change of owner. It is not a floor in every case, because a business earning less than a commercial return on its assets can be worth more realised than continued. Market evidence, being prices paid for comparable businesses, is adjusted rather than applied, since a comparable sale rarely carries the same concentration.

Where the interest is a parcel of shares, concentration compounds the position, because a holder without control cannot broaden the referrer base, renegotiate a contract or change the intake. In a share valuation that shows in the treatment of control, either a discount for a minority interest or the absence of the premium a buyer would pay for control.

Purpose matters too. An interest valued for a sale meets the transfer question directly, while the same business valued for an internal transaction between continuing owners may not. A valuation for a family law matter or a tax or restructure purpose is prepared at a specified valuation date, being the date at which value is assessed, so the same concentration can properly be weighed differently. How that applies to your matter should be confirmed with your lawyer or accountant.

Reducing concentration, described neutrally

Concentration is a fact about a business rather than a fault, and some of it is structural: a regional specialist practice cannot manufacture more referring general practices. What can usually change is how much of it depends on one person and how well it is evidenced. Broadening the referrer base, rotating clinicians so more than one is known to a major referral source, documenting service agreements, formalising intake so referrals arrive at the practice rather than at an individual, and producing the ranked reports on demand all reduce the uncertainty a buyer prices. Changes of this kind take periods, not weeks, to show.

None of that is advice about what a particular owner should do, and the commercial and tax consequences of restructuring relationships or contracts should be confirmed with your accountant and lawyer. Preparing a healthcare business for sale covers the same material ahead of a transaction.

Concentration is one of the few value drivers an owner can measure without a valuer, since the ranked lists come out of most practice management systems. What a valuation adds is the translation into earnings, multiple and goodwill, alongside the other value drivers and the clinical workforce. To have it applied to your business, request a valuation and we will confirm the scope, the information required and the valuation date.

This article is general information only and is not legal, taxation or financial advice.