Model the surgery center before you build it.
Converting an office-based surgical suite into a licensed, Medicare-certified ASC is a capital decision with a reimbursement question underneath it. This is the financial model that answers it: eligible case volume, facility fee economics net of the professional fee stepdown, the real cost to run the rooms, and the ownership structure, taken to a go or no-go before you spend on the conversion.
The conversion question usually arrives already half-decided.
A developer, a partner, or a broker has run rough numbers. The model behind those numbers is what nobody has checked.
You already own the rooms
An accredited office-based suite is running, and the question is whether licensure and Medicare certification pay for themselves on your actual case mix.
Outside surgeons want block time
Other physicians would bring cases. What that is worth, and what it costs to serve them, has to be priced before anything is promised.
Someone proposed a syndication
An ownership structure is on the table with per-unit economics attached, and nobody independent has tested the assumptions under them.
The pro forma came from a vendor
A developer or equipment partner built the projection. A model built by someone with nothing to sell you reads differently.
Six inputs decide the answer.
Each is built from your own case log, payer detail, and financials rather than from a benchmark spreadsheet.
Eligible case volume
Your historical cases sorted by CPT and payer into what an ASC can actually be paid for. Medicare pays a facility fee only for procedures on the covered list (CMS), so the eligible slice is the starting number.
Facility fee economics, net
An office cannot bill a separate facility fee; a Medicare-certified ASC is paid one under a system linked to hospital outpatient rates (MedPAC, CMS). The model nets that new line against the professional fee stepdown from non-facility to facility rates, which is the part vendor pro formas tend to leave out.
Commercial payer position
What your commercial contracts would pay a licensed center, where a separate facility contract has to be negotiated, and which payers realistically move.
Cost to run the rooms
Staffing built off the block schedule, supplies and implants per case, accreditation and licensure carrying costs, and the fixed cost of keeping the rooms open on light days.
Conversion capital and the gap
Build-out, equipment, survey and licensure timeline, and the working capital that covers the ramp between shutdown and the first clean facility claim.
Ownership and distribution scenarios
Sole ownership, an outside partner, or a syndicate, each modeled to per-unit economics, distribution waterfall, and what the facility itself would be worth as a separate asset.
Three paths, priced side by side.
| Comparison criteria | Stay office-based | Convert and own it | Convert and syndicate |
|---|---|---|---|
| Revenue effect | Professional fee at non-facility rates, no separate facility fee | Facility fee on covered cases, professional fee steps down | Facility fee shared, plus case volume from other surgeons |
| Capital required | None | Build-out, equipment, licensure, and ramp working capital | Same, partly funded by partner buy-in |
| Who fills the rooms | You | You, and the utilization risk is yours | You plus the owner-surgeons, who have reason to bring cases |
| Complexity | Lowest | Licensure, survey, accreditation, payer contracting | All of that, plus entity structure and counsel |
| Best when | Covered volume is thin or the case mix is mostly cash-pay | Your own insured volume carries the rooms | Outside surgeon demand is real and documented |
A model you can re-run, and a memo you can hand to your attorney.
The model
A working file with the assumptions exposed, so the answer can be re-run when case volume, rates, or the build estimate change.
The walkthrough
A live session on the scenarios and what drives them. Physician owners want the answer and the number, not a fifty-page report.
The decision memo
The go or no-go, the assumptions it depends on, and the open items with an owner and a date attached to each.
The engagement is a flat, fixed advisory fee, scoped and priced in writing before it starts. Typical turnaround is two to four weeks once the source package is in hand, and the date is set after the sources are reviewed, since data quality drives it.
Scope boundary. This is financial modeling and structuring analysis. Licensure, survey readiness, and clinical operations sit with your ASC development and regulatory partners, and the legal work sits with your counsel. Ownership interests in a surgery center are securities; Healthcare M&AI does not facilitate, broker, or intermediate securities transactions, and takes no fee contingent on a syndication closing.
Match the scope to the question.
ASC conversion economics (this page)
One question, modeled deep: does the conversion pencil, and under what assumptions.
Fractional CFO
The standing seat after the decision: monthly numbers, cash planning, and the calls that come next.
Practice valuation
An indicative value range for internal planning, including what a facility asset adds to it.
Common questions about ASC conversion.
What does an ASC feasibility analysis include?
Eligible case volume by CPT and payer, facility fee revenue net of the professional fee stepdown, staffing and supply cost built from the schedule rather than a percentage, conversion capital and timeline, and the ownership and distribution scenarios. It ends in a go or no-go with the assumptions each answer depends on.
When does converting an office-based surgical suite make financial sense?
It turns on covered case volume. An office cannot bill a separate facility fee, while a licensed and Medicare-certified ASC can, so the upside sits on insured and medically necessary cases, not cash-pay cosmetic work. Volume, case mix, and whether outside surgeons will bring cases are what decide it.
Does a cash-pay cosmetic practice benefit from ASC licensure?
Not on the fee side. Pure cash cosmetic work sees no payer facility fee regardless of licensure. The case for converting a cosmetic-heavy suite rests on insured volume, outside surgeon utilization, and the separately valued facility asset, and it is worth testing before spending on the conversion.
Can you help with ASC syndication?
On the modeling and structuring side: unit economics per owner, buy-in pricing ranges for internal planning, distribution waterfalls, and the questions your counsel needs answered. Healthcare M&AI does not facilitate, broker, or intermediate securities transactions, and the fee is flat regardless of whether a syndication happens.
How long does the analysis take?
Typically two to four weeks once the source data is in hand: case log, payer detail, financials, staffing schedule, and lease. The timeline moves with data quality, and any date is set after the sources are reviewed rather than before.
Find out whether it pencils before you spend on it.
Send the case log and the financials. You get the model, the scenarios, and a straight answer on whether the conversion earns its capital.