Professional Corporation (PC) vs. LLC for Medical and Dental Practices in Massachusetts

Current as of: September 19, 2026 Business Formation (LLC, Corp, Partnerships) Massachusetts
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In Massachusetts, licensed healthcare professionals cannot simply open a standard LLC. To protect patients and maintain ethical standards, doctors, dentists, and physical therapists must legally form a Professional Corporation (PC) or a Professional LLC (PLLC), which requires specific licensing board approvals before you can file with the state.

Understanding Entity Options for Healthcare Providers

Opening your own medical, dental, or therapeutic practice in Massachusetts is a massive achievement. However, navigating the corporate structuring is vastly different from opening a standard retail business. The state heavily regulates how licensed professionals can conduct business. Choosing between a Professional Corporation (PC) and a Professional Limited Liability Company (PLLC) impacts your taxes, your liability, and your professional license. Because an error here can result in practicing without a proper corporate license, you should use our US Lawyers Directory to hire a corporate attorney experienced in healthcare law.

Chapter 156A Statutory Requirements

Under Mass. Gen. Laws ch. 156A, § 2, the state established the Professional Corporation Act. This law mandates that specific licensed professionals-including physicians, dentists, optometrists, and veterinarians-must form a PC if they incorporate. Alternatively, under Mass. Gen. Laws ch. 156C, § 6, you may form a Professional LLC (PLLC). The defining rule for both structures is that all owners (shareholders or members) must be legally licensed in the specific profession the company offers. You cannot bring in a non-doctor business investor as a co-owner of your medical practice.

Liability Shielding: Medical Malpractice vs. Business Debts

A critical misunderstanding among young doctors is how liability shields work. Forming a PC or PLLC provides excellent protection against general business debts. If your practice breaks a commercial lease or a vendor sues you for unpaid medical supplies, your personal bank accounts and home are protected. However, under Mass. Gen. Laws ch. 156A, § 6, incorporating does absolutely nothing to shield you from your own personal medical malpractice. If you commit negligence that harms a patient, you are personally liable. However, the corporate veil does protect you from the malpractice committed by your partners within the same PC.

Micro-Niche Guide for MA Practitioners

Optometrists and Vision Centers

Optometrists frequently open joint practices. When setting up a vision center, all partners must be licensed by the state. You will need to obtain a Certificate of Good Standing from your specific regulatory body before you can file Form PC, Massachusetts, Secretary of the Commonwealth, Articles of Organization for a Professional Corporation with the Secretary of the Commonwealth, Corporations Division, Boston.

Physical Therapists and Rehab Clinics

Physical therapy clinics often employ numerous support staff, including massage therapists and administrative assistants. It is vital to note that while support staff can be employees, only licensed Physical Therapists can be official members of the PLLC or shareholders of the PC. If you attempt to give ownership equity to an unlicensed office manager, the state can revoke your corporate status.

Dental Specialists and Orthodontists

Dentists face immense regulatory oversight. Before the state will accept your incorporation documents, you must receive explicit approval from the Board of Registration in Dentistry, Boston. The same applies to medical doctors who must seek a certificate from the Board of Registration in Medicine, Boston. This step proves to the Secretary of State that everyone listed as an owner is currently in good standing and has no pending disciplinary actions.

How Much Does it Cost to Incorporate?

Forming a professional entity carries slightly higher administrative costs than a standard business:

Professional Corporation (PC)$275 onlineVaries (usually $50 - $100 per owner)
Professional LLC (PLLC)$520 onlineVaries (usually $50 - $100 per owner)

Attorney fees for drafting specialized PC bylaws or a PLLC operating agreement that complies with Chapter 156A generally range from $1,500 to $3,500, depending on the number of medical partners involved.

How Long Does it Take?

While standard LLCs can be formed in Massachusetts in 24 hours online, Professional Entities take longer. Obtaining the mandatory approval certificate from your specific medical board (like the Board of Registration in Medicine) can take 2 to 4 weeks. Once that certificate is in hand, the actual filing with the Secretary of the Commonwealth takes only a few days.

Frequently Asked Questions (FAQ)

Can a doctor and a dentist co-own a single PC together?

Generally, no. Under Massachusetts law, a Professional Corporation must render a specific, single professional service. All owners must be licensed in that exact same profession, with very few statutory exceptions.

What happens to the practice if one partner loses their license?

If a shareholder loses their professional license, they are legally disqualified from owning shares in the PC. Your corporate bylaws must contain a mandatory buyout clause to immediately purchase their shares and remove them from ownership.

Is a PLLC taxed differently than a PC?

Yes. A PLLC defaults to pass-through taxation (like a partnership), while a PC is taxed as a C-Corporation unless you specifically file an S-Corp election with the IRS. Your CPA will guide this decision based on your revenue.

Do I still need malpractice insurance if I incorporate?

Absolutely. A PC or PLLC does not protect your personal assets from claims of your own medical negligence. Comprehensive medical malpractice insurance is both legally and practically mandatory.


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