Meet with a Missouri-licensed physician or nurse practitioner about whether medical marijuana fits your health needs. If you qualify, your state patient card stays valid for three years.
Missouri's Division of Cannabis Regulation handles patient cards online. Here's the order things happen.
A Missouri-licensed MD, DO, or nurse practitioner reviews your health history and, if you qualify, completes the state's electronic certification form.
Submit your application through the state's online registry within 30 days of the practitioner's signature date.
A legible copy of your government-issued photo ID and a clear, color digital photo of your face.
The state has 30 days to review applications. Approved cards are downloaded and printed from the registry — nothing is mailed.
Missouri allows certification by telemedicine when the standard of care doesn't require an in-person exam. Your practitioner will let you know if an in-person visit is needed.
Adults 21+ can buy at any dispensary with a photo ID. A medical card changes the tax rate, the limits, and who can qualify.
| Medical patient | Adult-use consumer | |
|---|---|---|
| Minimum age | 18 (younger with a parent or guardian as caregiver) | 21 |
| State marijuana tax | 4% | 6%, plus up to 3% local |
| Purchase limit | 6 oz per 30 days (more if certified) | 3 oz per transaction |
| Possession limit | 60-day supply | 3 oz |
| Caregiver can buy for you | Yes, up to 2 caregivers | No |
Regular sales tax applies to both. Details summarized from the Missouri Constitution, Article XIV, and DHSS guidance — confirm current rules with the state.
By Mid Rivers Mall, serving both medical patients and adult-use customers, with online ordering for in-store pickup. Several other licensed dispensaries operate around St. Charles County.
A large park built around a lake, with walking paths along the shoreline — an easy place for low-impact exercise close to home.
“Three years on one card is the real selling point. I did the visit, uploaded my ID and photo, and had my card to download a few weeks later.”
— Brian K., St. Peters“My daughter is 19 and has epilepsy. The medical program was the only legal route for her, and her practitioner walked us through every step.”
— Carol S., CottlevilleMissouri's constitution names conditions such as cancer, epilepsy, glaucoma, intractable migraines, PTSD, HIV/AIDS, terminal illness, and chronic conditions causing severe pain or muscle spasms. It also lets a physician or nurse practitioner certify other chronic or debilitating conditions using their professional judgment.
A physician (MD or DO) or nurse practitioner who is licensed and in good standing in Missouri and registered with the Department of Health and Senior Services.
Three years from approval. Renewal requires a new certification, and the renewal window opens 60 days before your card expires.
There's a state application fee that's adjusted each year for inflation. Current amounts are on the DHSS fee schedule. Your practitioner's evaluation fee is separate.
Yes, with a separate patient cultivation card. Approved cultivators can grow up to six flowering plants per patient in an enclosed, locked space.
The Missouri Department of Health and Senior Services publishes them on its patient FAQ page.
St. Peters sits along I-70 about 30 miles west of downtown St. Louis and grew quickly in the late twentieth century into one of St. Charles County's largest cities. Mid Rivers Mall, the St. Peters Rec-Plex, and 370 Lakeside Park anchor daily life here. Residents follow the same statewide medical marijuana process as everyone in Missouri.
Medical and adult-use marijuana are both authorized by Article XIV of the Missouri Constitution. The Division of Cannabis Regulation within the Department of Health and Senior Services licenses patients, caregivers, and dispensaries, and issues patient cards digitally through its online registry.
Since adult-use sales began, the medical program has remained the only legal route for 18- to 20-year-olds and carries a lower state tax and higher purchase limits. See DHSS Cannabis Patient Services for current guidance.
Visits with Missouri-licensed physicians and nurse practitioners.