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Meet Our Medical Cannabis Expert
Aloha! E komo mai to Doctor420Hawaii!
At Doctor420Hawaii, we proudly serve our island with expert guidance and compassionate care for medical cannabis certifications. Our dedicated team is here to make your journey smooth, ensuring you receive the support you need with true Hawaiian hospitality.

Our Medical Marijuana Doctor
Dr. Susan Cauley, MD
Your Trusted Hawaii Medical Marijuana Doctor Dr. Susan has been a cornerstone of our practice since 2003, providing expert evaluations and certifications for patients across Hawai’i. With a deep understanding of the therapeutic benefits of medical cannabis, she is committed to helping patients find relief and improve their quality of life. Dr. Susan’s approach is patient-centered, ensuring that each individual receives personalized care tailored to their unique needs.
Ready to start your journey with medical cannabis?
Our Care Coordinator
Matthew Brittain, LCSW – Supporting Your Wellness Journey
As a Licensed Clinical Social Worker, Matthew provides counseling to ease the anxiety, stigma, and legal concerns that may come with using medical cannabis. A strong advocate since the late ʻ90s, he ensures patients have safe and legal access to medicinal cannabis. Matthew also offers telehealth services for mental health conditions and accepts most medical insurances.
Why Choose Doctor420Hawaii?
- Serving Hawaii's medical cannabis community since 2003
- Helping thousands of patients access legal medical marijuana
- Providing expert care from a trusted Hawaii Medical Marijuana Doctor
- Offering in-person and telehealth consultations
- Supporting patients with personalized, compassionate service
- Conveniently based in Hilo, serving patients statewide

Ready to Start Your Journey?
Frequently Asked Questions
What are the qualifying conditions for a 329 card?
The Hawaii Department of Health recognizes conditions such as cancer, glaucoma, epilepsy, multiple sclerosis, lupus, rheumatoid arthritis, PTSD, HIV/AIDS, and chronic or debilitating illnesses that cause severe pain, nausea, muscle spasms, or seizures.
How do I apply for a medical cannabis card in Hawaii?
Contact our Hilo office to check eligibility and book an appointment. After approval from our Medical Cannabis Doctor, you’ll submit an online application to the Hawaii Department of Health. We’re happy to assist you every step of the way.
Can I use my out-of-state ID to apply?
Yes, if you provide both a local physical and mailing address in Hawaii.
What is the renewal process for the 329 card?
The 329 card requires annual renewal. This includes a medical assessment by our Hawaii Medical Marijuana Doctor and a renewal application with the Department of Health. Contact us to schedule your renewal.
Do you offer telehealth services?
Absolutely! We provide secure, encrypted video consultations so you can complete your certification from the comfort of your home.
Are you authorized to sell medical cannabis products?
No, Doctor420Hawaii is not a dispensary. For medical cannabis products, please visit a state-licensed dispensary in Hawaii.