A medical practice can be organized as an LLC in most states, but almost always only as a specific variant called a Professional Limited Liability Company, or PLLC. A handful of states, including California, prohibit licensed professionals from using any LLC form and require a professional corporation instead. So the honest answer to whether a medical practice can be an LLC is: usually yes, but not the standard LLC most business owners are thinking of, and not at all in a few jurisdictions.
The difference matters. Filing the wrong entity type can void contracts with patients and insurers, expose the physician to medical board discipline, and leave the practice without legal standing to operate.
Why a Standard LLC Usually Won’t Work
The obstacle is a rule called the corporate practice of medicine doctrine. Under this doctrine, only a licensed physician can make clinical decisions, employ other physicians to deliver care, or control an entity whose primary purpose is practicing medicine. General business corporations and standard LLCs owned by non-physicians are barred from offering medical diagnosis, treatment, or care.
The doctrine exists to keep profit motives from overriding medical judgment. Most states enforce it in some form, and the consequences of violating it are real: contracts between the practice and patients or insurers can be voided, and the physician involved may face disciplinary action from the state medical board, up to and including loss of licensure.
The doctrine also draws a line around non-physician management companies. A non-physician entity can handle billing, scheduling, and office administration, but it cannot direct clinical staffing, control medical records, or influence treatment plans. Enforcement actions tend to focus on exactly where that line was crossed.
What a PLLC Is
A Professional Limited Liability Company follows the same general formation rules as a standard LLC, then layers professional licensing requirements on top. Most states require physicians to use a PLLC (or a professional corporation) when the primary purpose of the business is delivering medical services. That structure gives the state licensing board continuing oversight of the entity itself, not just its individual physicians.
States differ on the label. Some call the entity a “PLLC,” some a “professional LLC,” and some allow a standard LLC with professional licensing conditions attached. California prohibits the LLC form entirely for licensed professionals. Before filing anything, confirm which structure your state’s business entity statute and medical board rules actually allow.
The entity’s legal name typically has to signal its professional status. Most states require the name to contain “Professional Limited Liability Company,” “PLLC,” or “P.L.L.C.” so clients and regulators can identify the entity type at a glance.
Who Can Own a Medical PLLC
Every state that permits medical PLLCs requires all owners to hold active, unrestricted medical licenses. A non-licensed spouse, investor, or family member cannot hold an equity stake. The rule exists so that every person with ownership authority over the entity is someone the medical board can regulate directly.
Multi-disciplinary practices add complexity. Some states let physicians co-own a practice with certain other licensed providers such as nurse practitioners or physician assistants. Others require physicians to hold the majority interest, or all of it. A structure that works in one state may be illegal in the next.
If the practice will operate in more than one state, each additional state requires the PLLC to register as a foreign entity. That usually means filing an application for a certificate of authority with the new state’s secretary of state, providing a certificate of good standing from the home state, and showing that at least one member holds a valid license in the new state. Foreign qualification adds filing fees and ongoing compliance work everywhere the practice operates.
What Liability Protection a PLLC Actually Gives You
The biggest misconception is that forming a PLLC shields a physician from malpractice liability. It does not. If you are personally negligent in treating a patient, your personal assets are at risk regardless of your business structure.
What the PLLC does protect is your personal exposure to liabilities that aren’t your fault. If your partner commits malpractice, the PLLC keeps that judgment from reaching your personal savings and property. The same applies to general business debts: office leases, equipment financing, vendor contracts. If the practice defaults on a loan, creditors can pursue practice assets but generally cannot come after your personal accounts.
Forming the PLLC
Formation starts with the secretary of state’s office where the practice will be headquartered. The main filing document is the Articles of Organization, called a Certificate of Formation in some states, and it must identify the entity as a professional LLC. Before filing, have the following ready:
- Member license information. The active medical license number and issuing state for every member. Many states require the medical board to approve the formation, either before or after the secretary of state filing.
- A business purpose clause stating that the entity exists to practice medicine. Some states require specific statutory language. Keep it narrow; a PLLC formed to practice medicine generally cannot run unrelated businesses under the same entity.
- A registered agent with a physical address in the state of formation, designated to receive legal documents and government notices.
- An entity name that includes the required professional designation and isn’t deceptively similar to an existing registered entity in the state.
Filing methods vary by state: online portals are fastest, mail and in-person filings are slower. Fees for the Articles of Organization generally run from $50 to $250, with expedited processing and state surcharges pushing the total higher. Online filings are usually processed within a few business days. Mailed filings can take several weeks.
The Operating Agreement Provisions That Matter
Filing the Articles creates the entity. The operating agreement tells everyone inside how to run it. For a medical practice, two provisions carry more weight than they would in an ordinary business.
Clinical Authority
The clinical authority reservation states explicitly that all clinical decisions remain under the exclusive control of licensed physician members, and that no administrative function, management company, or non-clinical member can direct or influence patient care. Courts and regulators look for this language when evaluating whether a practice complies with the corporate practice of medicine doctrine. Without it, the entity is easier to challenge as improperly controlled by non-physicians.
License Loss and Buy-Sell Terms
Medical PLLCs have a trigger most businesses don’t: license revocation. If a member loses their medical license, most states require them to surrender their ownership interest, because an unlicensed person cannot own part of the entity. Many states give the PLLC a limited window, often 90 days, to complete the buyout before the state takes action against the entity itself.
The operating agreement should spell out what happens when a member leaves for any reason: retirement, death, disability, voluntary resignation, or loss of licensure. Typical provisions cover whether the remaining members or the entity buys the departing member’s interest, how the interest is valued (fixed formula, independent appraisal, or book value), and the payment timeline. State default rules generally weren’t drafted with professional licensing triggers in mind, so leaving these details unaddressed invites a crisis. Practices often fund the buyout with life and disability insurance policies so the money is actually there when it’s needed.
How a Medical PLLC Is Taxed
The IRS treats a single-member LLC as a disregarded entity by default, with income flowing through to the owner’s personal return. A multi-member LLC is treated as a partnership, with profits and losses passing through to each member.1IRS. Single Member Limited Liability Companies Either way, net profit is subject to self-employment tax at a combined 15.3%: 12.4% for Social Security on earnings up to the 2026 wage base of $184,500, and 2.9% for Medicare with no cap.2Social Security Administration. Contribution and Benefit Base
Physician-owners earning well above the break-even point often elect S-corporation tax treatment by filing IRS Form 2553. The election splits income into a W-2 salary subject to employment taxes and shareholder distributions that are not. The salary has to meet the IRS’s “reasonable compensation” standard, meaning what you’d realistically pay someone else with similar training to do the same work.3IRS. S Corporation Compensation and Medical Insurance Issues The IRS uses data matching to flag S-corps where distributions dwarf salaries and can reclassify distributions as wages, assessing back payroll taxes.
Form 2553 must be filed no later than two months and 15 days after the start of the tax year (March 15 for calendar-year filers), or any time during the preceding tax year.4IRS. Instructions for Form 2553 Miss it and you wait a year, absent late-election relief. The break-even point where S-corp treatment begins saving money is generally $75,000 to $80,000 in net profit. Below that, the payroll and filing costs eat the savings.
Federal Numbers the Practice Needs
Before the PLLC can hire employees, open a bank account, or bill insurers, it needs two federal identifiers.
The Employer Identification Number is the business’s tax ID. Any LLC with more than one member, or a single-member LLC with employees or excise tax obligations, must obtain one from the IRS.5IRS. When To Get a New EIN The application is free through the IRS website, and most applicants receive the EIN immediately after completing the online form.
The practice also needs a Type 2 (organizational) National Provider Identifier, in addition to the Type 1 (individual) NPI each physician already holds. An incorporated solo physician needs both.6CMS. The Who, What, When, Why and How of NPI The Type 2 NPI is issued through the National Plan and Provider Enumeration System, and the application requires the EIN.7NPPES. Apply for an NPI – NPPES Without a Type 2 NPI, the practice cannot submit claims to Medicare, Medicaid, or most private insurers.
Keeping the PLLC in Good Standing
Formation is the beginning of compliance, not the end. Most states require an annual or biennial report with the secretary of state, along with a fee ranging from under $50 to several hundred dollars. The report typically confirms the current address, registered agent, and member information. Miss the deadline and the entity can lose its good standing or be administratively dissolved.
Medical PLLCs also have to keep every member’s license current and unrestricted. If a member’s license lapses, is suspended, or is revoked, the ownership change has to be addressed promptly under the buy-sell terms discussed above.
State medical boards may impose their own periodic filings on top of the secretary of state requirements. Some states require annual re-registration of the entity with the board; others only require notification when membership changes. Tracking both sets of filings is the administrative task that most often slips in small practices, and it is also the one most likely to threaten the entity’s legal existence if it does.