An Illinois-licensed health care professional can certify your qualifying condition for the IDPH Medical Cannabis Patient Program. Here's what's different if you're 18 to 20, or a student.
Illinois's Medical Cannabis Patient Program is run by the Illinois Department of Public Health (IDPH).
An Illinois-licensed physician, APRN, or physician assistant certifies that you have a qualifying condition.
Apply online with ID and proof of Illinois residency, and choose a one-, two-, or three-year card.
After you apply, IDPH issues a provisional registration so you can buy at medical dispensaries during review.
Show it on your phone or print it, along with photo ID.
Illinois's adult-use market starts at 21, but the medical program starts at 18. A few rules follow from that.
Illinois residents 18 and older can register as medical patients.
A licensed health care professional must certify a condition on Illinois's list. The card isn't a way around the age limit.
Patients under 21 can't buy adult-use products, and home growing is limited to patients 21 and older.
IDPH registration requires Illinois residency. Students from other states generally can't register unless they're Illinois residents.
On campus: universities that receive federal funding, including Northwestern, generally prohibit cannabis on campus and in residence halls — even for registered patients. Check your student policies before assuming anything is allowed.
One-year card ($25 reduced)
Three-year card ($75 reduced)
Patient state tax rate, with no cannabis excise tax
Per 14 days for registered patients
Fees from IDPH. Reduced fees apply to qualifying veterans and SSI or SSDI recipients. The certification visit is separate.
IDPH recognizes dozens of debilitating conditions. A sample:
Plus: any condition for which an opioid has been or could be prescribed. See the full list from IDPH.
Downtown near the Davis Street CTA and Metra station, serving registered medical patients as well as adult-use customers 21+. Bring your IDPH registration and photo ID.
Not every Illinois dispensary serves patients — check the state's dispensary list.
Beaches, parks, and a lakeside path stretching up toward the Grosse Point Lighthouse — Evanston's best long walk.
“I'm 20 with Crohn's. My GI records made the certification straightforward, and I shop at the medical counter.”
— Noah F., Evanston“I'm from Wisconsin, so I learned I couldn't register as a student. Good to know before I booked anything.”
— Priya S., EvanstonYes, if you're an Illinois resident and a licensed health care professional certifies a qualifying condition.
No. Adult-use sales require being 21 or older. Your card covers medical purchases at dispensaries that serve patients.
IDPH requires Illinois residency, so students from other states generally can't, unless they're Illinois residents.
Generally no. Universities that receive federal funding typically prohibit cannabis on campus, including residence halls.
On the IDPH Medical Cannabis pages.
Evanston, just north of Chicago on Lake Michigan, is home to Northwestern University, the Grosse Point Lighthouse, and miles of lakefront parks. It also became one of the first U.S. cities to fund a local reparations program, using revenue from its municipal cannabis tax. Evanston residents follow the same statewide rules as every patient in Illinois's Medical Cannabis Patient Program.
The medical program operates under the Compassionate Use of Medical Cannabis Program Act (410 ILCS 130). Adult-use sales for those 21 and older began in 2020 under the Cannabis Regulation and Tax Act.
Public use is prohibited and driving impaired is illegal. Federally, state-licensed medical cannabis moved to Schedule III in 2026, but it remains a controlled substance, and adult-use cannabis remains in Schedule I. See IDPH for current rules.
Appointments with Illinois-licensed health care professionals.