Wentzville · Western St. Charles County

A growing city deserves easy medical access.

See a Missouri-licensed physician or nurse practitioner about medical marijuana. If you qualify, your state card lasts three years and saves you tax on every purchase.

Your Checklist

Five boxes between you and a card

Missouri runs the patient program online, so most of this happens from home.

1

Book with a certifying provider

Choose a Missouri-licensed MD, DO, or nurse practitioner registered with the state.

A few minutes
2

Complete your evaluation

Your provider reviews your history and, if you qualify, fills out the state certification form.

One visit
3

Gather ID and a photo

A legible government photo ID and a clear, recent color photo of your face.

Before applying
4

Apply in the state registry

Submit within 30 days of your provider's signature date.

Within 30 days
5

Download your card

After approval, print it at home. It's valid for three years.

Up to 30-day review

Telemedicine evaluations are allowed when the standard of care doesn't require an in-person visit. Your provider will let you know which applies.

Savings Estimator

See what a patient card saves you

Medical purchases carry a 4% state tax. Adult-use purchases carry 6%, and cities and counties can add up to 3% more. Enter a typical monthly spend to compare.

$
Saved per month$4–$10
Saved per year$48–$120

Range reflects no local marijuana tax up to the maximum 3% local rate. Estimate only; regular sales tax applies to both.

For Families

How caregivers and parents fit in

Missouri's program has specific roles for the people who help patients.

Parents of minors

Patients under 18 can qualify, but a parent or legal guardian must serve as their caregiver and be involved in the process.

Adult caregivers

A patient can designate up to two caregivers, each at least 21, who can purchase and transport on the patient's behalf.

Growing at home

With a separate cultivation card, patients or their caregivers can grow up to six flowering plants per patient in a locked space.

Local Stories

From our neighbors

“I put in ten-hour shifts at the plant and my shoulders pay for it. The provider asked the right questions, and the application was simpler than I expected.”

DKDave K., Wentzville

“I'm my mom's caregiver, so I pick things up for her. Knowing exactly how the caregiver card works made it easy.”

SLSarah L., Lake Saint Louis
Questions

Answers for western St. Charles County

What conditions qualify in Missouri?

The constitution lists conditions such as cancer, epilepsy, glaucoma, intractable migraines, PTSD, HIV/AIDS, terminal illness, and chronic pain or spasms, plus other chronic or debilitating conditions in a provider's professional judgment.

Who can certify me?

A physician (MD or DO) or nurse practitioner licensed and in good standing in Missouri and registered with the Department of Health and Senior Services.

How long is my card good for?

Three years. Renewing requires a new certification, and the renewal window opens 60 days before expiration.

How much can I buy?

Up to 6 ounces of dried marijuana, or its equivalent, in a rolling 30-day period, unless your provider certifies a higher amount.

What does the state charge?

An application fee that's adjusted each year for inflation — see the DHSS fee schedule.

Where are the official rules?

Published by the Missouri Department of Health and Senior Services on its patient FAQ page.

Dispensary in Wentzville

Root 66 Wentzville

1163 Wentzville Pkwy, Wentzville, MO 63385

A licensed dispensary on Wentzville Parkway with online ordering for in-store pickup. Listings show it serving both medical and adult-use customers — ask about medical pricing when you visit, and confirm hours before you go.

Around Town

Quail Ridge Park

A large county park just off I-70 with paved trails, a fishing lake, and open meadows — easy on sore joints and close to home.

Wentzville, Missouri

A crossroads city and Missouri's program

Where I-70 meets I-64

Wentzville sits where Interstates 70 and 64 meet in western St. Charles County and has become one of the fastest-growing cities in the St. Louis region, now home to more than 40,000 people. It's known for its large automotive assembly plant, a historic downtown along the railroad, and a long association with rock-and-roll pioneer Chuck Berry, who made his home nearby. Residents follow the same statewide medical marijuana process as all Missourians.

The rules behind the program

Article XIV of the Missouri Constitution authorizes medical and adult-use marijuana. The Division of Cannabis Regulation at the Department of Health and Senior Services licenses patients, caregivers, and dispensaries and issues patient cards online.

Medical alongside adult-use

Lower tax, higher limits, caregiver privileges, and access for 18- to 20-year-olds keep the medical program worthwhile. Details are posted by DHSS Cannabis Patient Services.

Get your three-year card started.

Visits with Missouri-licensed physicians and nurse practitioners.

Book Your Visit