
Washington, DC’s Favorite
Medical Cannabis Dispensary
Where Nature Meets Nurture
Serving the Washington, DC community, Green Theory offers premium medical marijuana products, expert guidance, and fast delivery. Our experienced team is here to help you find relief, rest, or relaxation — naturally.
Need a medical cannabis card?
DC Residents and Non-residents alike are eligible, and adults 21+ can self-certify! You’ll receive a temporary medical cannabis card which you can use to shop immediately.
Have an out-of-state medical card?
DC has reciprocity with all states with a regulated medical cannabis program! Bring your ID and medical card into the store and our team will be happy to help.

Why Choose Green Theory?
Family-Owned & Operated
We’re proud to be one of the only locally owned medical cannabis dispensaries in Washington, DC. You’ll find an owner on-site nearly every day, making sure every patient receives thoughtful, personalized care.
Expert Guidance, Patient First
Whether you’re new to cannabis or a seasoned patient, our friendly and knowledgeable team is here to help you find what works best for your wellness goals. We take the time to listen — and it shows.
Easy Medical Access
DC residents can self-certify online in minutes, and out-of-state visitors can apply in-store for a temporary Medical Cannabis Card with just an ID.
Always Legal, Always Discreet
Green Theory is a licensed medical dispensary, offering fully compliant cannabis products in a secure and welcoming environment. No loopholes. No confusion. Just legal peace of mind.
FAQs
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Yes, but it’s easier than you think. DC allows self-certification, which means you can get a medical cannabis card online in just a few minutes — no doctor’s visit required.
Out-of-state visitors can also apply for a temporary DC Medical Cannabis Card right in our store with just a valid government-issued ID. Whether you're a DC resident or visiting, our team is happy to walk you through the quick sign-up process so you can start shopping right away.
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Getting a DC medical cannabis card is fast and easy. Just visit the ABCA website or come into Green Theory and we’ll help walk you through the self-certification process. You’ll need a valid ID showing you’re 21 or older. The temporary digital card is active immediately, so you can shop with us right away.
Sign up for your DC Resident med card.
Sign up for your Non-DC Resident med card. -
Yes! Visitors from out of state can apply for a 3-day temporary DC medical card using just their ID — no need to be a resident. Green Theory also accepts valid out-of-state medical cannabis cards from dozens of jurisdictions. Whether you’re here for a weekend or longer, we’ve got you covered.
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At Green Theory, we carry a wide selection of premium medical cannabis products including flower, edibles, pre-rolls, concentrates, vapes, tinctures, topicals, and accessories. Whether you’re looking for fast relief or long-lasting effects, our knowledgeable team can help you find the right option for your needs.
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Yes — cannabis is legal in DC for adults 21 and over, but purchases can only be made through licensed medical dispensaries. At Green Theory, we are fully licensed under DC’s medical cannabis program, which means all our products are legal, tested, and compliant with local regulations. To shop, you’ll need a valid DC medical marijuana card or a qualifying out-of-state card — or you can self-certify as a patient right from your phone.
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