Cancer and medical marijuana in Oregon: do you qualify?
Yes. The Oregon Medical Marijuana Program (OMMP) lists Cancer as a qualifying condition. An Oregon-licensed provider still has to evaluate you and agree that cannabis is appropriate.
About cancer
Cancer and its treatment — chemotherapy, radiation, surgery — can cause pain, nausea, vomiting, appetite loss and trouble sleeping.
Stronger evidence. The National Academies found conclusive evidence that oral cannabinoids prevent and treat chemotherapy-induced nausea and vomiting. There is not enough evidence that cannabis treats or cures cancer.
Symptoms Oregon patients most often hope to ease:
- Nausea and vomiting from chemotherapy
- Loss of appetite and unwanted weight loss
- Cancer-related pain
- Burning or tingling nerve pain from chemotherapy
- Trouble sleeping
Before you start. CBD can affect liver enzymes that process some chemotherapy and targeted drugs, so your oncology team must know about any cannabis you use. A few small studies have raised questions about whether cannabis use may affect how well immunotherapy works, which is worth discussing with your oncologist.
Read more: medical marijuana for cancer.
How to get certified in Oregon
- Confirm you are an Oregon resident with a condition on the OMMP list.
- See an eligible Oregon attending provider who has primary responsibility for your care and will complete an Attending Provider Statement after a physical exam and records review.
- Within 90 days of the provider's signature, create an account in the Oregon Medical Marijuana Online System (OMMOS).
- Upload your Attending Provider Statement, government ID, proof of Oregon residency, and any reduced-fee proof.
- Choose whether you will grow yourself, name a grower, or not grow, and designate a caregiver if needed.
- Pay the fee; keep your receipt letter, which works as a temporary card for 30 days until your card arrives by mail.
Oregon allows the evaluation by telehealth, so you can see an Oregon-licensed provider by video. Our evaluation starts at $79 and is charged only if you're approved.
Costs and timeline
- State fee: $200 ($60 with SNAP, $50 with Oregon Health Plan, $20 with SSI, $20 for military veterans, $0 for veterans with a 50%+ service-connected disability rating)
- Card lasts: 1 year
- Processing: Cards mailed within 7 to 10 business days of a complete application; a 30-day receipt letter serves as a temporary card
- Patient limit: 24 oz of usable marijuana, plus plants grown at a registered grow site
- Home grow: Up to 6 mature plants per patient at a registered grow site; a residential site may hold no more than 12 mature and 24 immature plants total
- Recreational sales: Legal for adults 21+
- First visit online: Yes
See the full Oregon cost breakdown and Oregon program overview.
Other qualifying conditions in Oregon
- Cachexia & wasting syndrome
- Chronic pain
- Epilepsy & seizures
- Glaucoma
- HIV/AIDS
- Nausea & appetite loss
- PTSD
- Severe muscle spasms & spasticity
Cancer in nearby states
Frequently asked questions
Do I need medical records for cancer?
Helpful records include: pathology or imaging reports confirming your cancer diagnosis; recent notes from your oncologist describing your stage and current treatment plan; a full list of medicines, including chemotherapy, anti-nausea drugs, pain medicines and blood thinners. Many patients are still evaluated on their history alone, and your Oregon provider will tell you if more is needed.
How long does certification take in Oregon?
The provider visit takes about 15 minutes. Cards mailed within 7 to 10 business days of a complete application; a 30-day receipt letter serves as a temporary card.
Can I renew online in Oregon?
In most cases, yes. Cards expire one year after issue and OMMP mails a renewal notice 60 to 90 days ahead. You must submit an updated Attending Provider Statement within 90 days of your expiration date, and your registration lapses if the renewal is not complete by then.
Sources
- Oregon Medical Marijuana Program - Oregon Health Authority
- Attending Providers - Oregon Health Authority
- Frequently Asked Questions - Oregon Health Authority
- OMMP Cardholder Fees - Oregon Health Authority
- Medical Marijuana - Oregon Medical Board
- Patients: Renewing Your Registration - Oregon Health Authority
- National Academies — The Health Effects of Cannabis and Cannabinoids (2017)
This guide is general information, not medical or legal advice. Laws change — confirm details with your state agency. State facts last checked October 7, 2026.