Malecki Brooks Ford Law Group, LLC | Healthcare Law

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What to know before starting a medical practice in Illinois

On Behalf of | Oct 19, 2026 | Healthcare Law

Opening your own medical practice in Illinois gives you more control over patient care and daily operations. However, starting a practice involves more than finding an office and hiring staff. You must also meet state requirements for business ownership, registration and healthcare compliance.

Understanding these five legal steps can help you prepare for a smoother opening:

1. Choose the right business structure

Physicians have several options for setting up their own businesses. Under the state’s Medical Corporation Act, you can form a medical corporation. Other options include professional service corporations and professional limited liability companies (PLLCs). Each has different rules for taxes, management and protection from certain debts.

2. Check ownership eligibility

State law limits who can own and manage medical practices, including PLLCs. Owners generally must be licensed physicians or certain approved businesses. Some hospitals and related organizations may also qualify. These rules can affect who can invest in or become a co-owner.

3. Complete registration and licensing

Once you choose a structure and settle ownership, you may need to:

  • File business formation papers with the Illinois Secretary of State
  • Register or license your business with the Illinois Department of Financial and Professional Regulation, if required
  • Get an Employer Identification Number (EIN) from the IRS
  • Make sure all physicians hold valid state licenses
  • Register an assumed name if you use a name other than your legal business name

These filings help you meet state and federal rules before opening.

4. Prepare business agreements

Written agreements help define responsibilities and prevent disputes. If your practice has several owners, an operating or shareholder agreement can explain who makes decisions, how profits are shared and what happens when an owner leaves.

Employment contracts can cover pay, job duties and rules for ending employment.

5. Review healthcare regulations

Your practice must follow HIPAA rules that protect patient health records. You must also follow state licensing rules. If you prescribe certain medications, you may need controlled substance registrations. You may also need to enroll in Medicare or Medicaid.

The state does not require all physicians to carry malpractice insurance. However, hospitals and insurance networks may require it before you can work with them.

Make sure your practice is ready to operate

Starting a medical practice involves legal decisions that affect how you manage your business and care for patients. An Illinois healthcare attorney can help you assess ownership restrictions, review agreements and identify requirements specific to your practice. This guidance can give you greater clarity as you prepare to open.