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The MSO-PC structure separates the clinical entity (the PC, owned by a clinician) from a management company (the MSO) that owns the non-clinical assets and runs operations for a fee. It’s how practices scale across clinicians, locations, and states, and how non-clinical owners and capital participate without violating CPOM. If you’re a non-physician building this from scratch rather than converting, start with Owning a practice when you’re not a physician.
This page is the on-ramp. The deep treatment, state rules, management agreements, fee structures, payer and lender views, lives at the companion MSO-PC Wiki. And none of this is legal advice: the conversion is a healthcare-attorney project from day one.

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When it’s worth it

The structure earns its overhead when at least one of these is true: you’re adding locations or states faster than one owner can personally hold them; you want employees, capital partners, or a future buyer to own economics without owning the medicine; or your state’s CPOM rules block the simpler thing you’d rather do. One clinician, one location, no outside capital? You almost certainly don’t need it yet.

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The conversion

Design before documents. With healthcare counsel: which entity keeps the clinical contracts, who owns each entity, and the management fee model (flat, cost-plus, or percentage, states differ on what’s permissible; see the fee-splitting discussion). The entity split. Form the MSO, then move the non-clinical assets, equipment, lease, brand, non-clinical staff, into it by contribution or sale. The management services agreement is the load-bearing document: fee, services, term, and the clinical-control carve-outs that keep it CPOM-compliant. The money re-pointing. Payer contracts and clinical revenue stay with the PC; the MSO invoices its fee. That means separate bank accounts per entity, an intercompany flow you actually follow, and books that survive a payer or state audit (structure). People and vendors. Non-clinical staff move to the MSO; clinicians stay with (or contract with) the PC. Vendor contracts, malpractice, and benefit plans get reassigned to match. The payers. If the PC (TIN) survives unchanged, payer disruption is minimal. If TINs change, treat it as full re-enrollment, contracting, credentialing, and EFT/ERA updates per payer, sequenced so deposits never stop, with the same discipline as switching banks.

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What changes day to day

Two sets of books, an intercompany invoice that must actually be paid, payroll in two entities, and a discipline requirement: the MSO manages, the PC practices. The fastest way to lose the structure’s legal protection is to run both entities like one checkbook.