Dr. Lewis K. Jassey, D.O.
Specialist in Medical Marijuana & Cannabis Evaluations
Experienced board-certified pediatrician providing professional medical evaluations through secure telehealth consultations. With over 30 years of clinical practice and a national reputation in pharmacogenetics and pharmacology, Dr. Jassey is dedicated to delivering patient-focused cannabis care through convenient and confidential online appointments.
Medical Credentials
All credentials are publicly verifiable through the NPPES NPI Registry maintained by the U.S. Department of Health & Human Services.
Education & Credentials
Verifiable credentials backing every clinical evaluation Dr. Jassey conducts.
Nassau University Medical Center
Residency, Pediatrics, 1994 - 1997
NYIT College Of Osteopathic Medicine
Class of 1994
Licensed in 4 U.S. States
Dr. Jassey holds active medical licenses across U.S. states, enabling him to evaluate patients through secure telehealth consultations. Each license number below is publicly verifiable through that state's medical board.
Maine
Maryland
Oklahoma
License - 6920
Washington DC
About Dr. Lewis K. Jessey, D.O.
Dr. Lewis K. Jassey is a board-certified Doctor of Osteopathic Medicine registered as an active provider in the National Provider Identifier (NPI) Registry. Over his 30+ year career, Dr. Jassey has run a pediatric practice serving over 15,000 patients, maintained staff privileges at five major hospitals, and developed a specialized niche in pharmacogenetics, pharmacology, and care for patients on the autism spectrum and with a variety of mental health conditions. He lectures on a national level and has served as Medical Director for Pediatric Medicine at Leafwell, a leading cannabis telemedicine platform.
My Role at My MMJ Doctor
As a physician working with My MMJ Doctor, I conduct secure online medical evaluations using a HIPAA-compliant telehealth platform designed to make access simple and convenient for patients. My approach focuses on delivering personalized consultations that prioritize patient comfort and evidence-based care in a fully virtual environment. During consultations, I carefully review each patient's medical history, discuss individual health concerns, and determine whether appropriate treatment options may support their medical needs. My goal is to provide a straightforward telehealth experience that maintains high standards of care while helping patients navigate their evaluation process with clarity and confidence.
Conditions Dr. Jassey Evaluates
Dr. Jassey evaluates patients for the medical conditions recognized by each state where he is licensed. Eligibility varies by state - the badges below show which states recognize each condition.
Chronic Pain
All 4 states
PTSD
All 4 states
Seizures / Epilepsy
All 4 states
Cancer-Related Symptoms
All 4 states
Muscle Spasms
All 4 states
Severe Nausea
All 4 states
Parkinson’s Disease
All 4 states
Cachexia
All 4 states
Trust & Verification
Dr. Lewis K. Jassey is a verified and licensed healthcare provider whose credentials are publicly accessible and regularly maintained.
30+ Years of Experience
Dr. Jassey brings over three decades of diverse clinical experience.
HIPAA-Compliant Platform
All evaluations are conducted through encrypted, fully compliant technology.
Last Updated
Doctor credentials and licensing information last verified: May, 2026.
Verified Profiles
Doximity • NPIDB • Healthcare Pro • Linkedin
Frequently Asked Questions
Specific to consultations with Dr. Jassey. For general questions, see our main FAQ.
Which states can Dr. Jassey evaluate patients in?
Dr. Jassey is licensed in 4 states - Maine, Maryland, Oklahoma, and Washington D.C. He can conduct telehealth evaluations for patients located in any of these states.
What conditions does Dr. Jassey evaluate?
Dr. Jassey evaluates patients for a range of medical conditions including chronic pain, PTSD, cancer-related symptoms, epilepsy/seizures, multiple sclerosis, severe nausea, inflammatory bowel disease, Parkinson's disease, autism spectrum disorder, and cachexia, among others recognized by each licensed state.
How long does an evaluation with Dr. Jassey take?
Evaluations are typically brief and efficient - most consultations are completed within 15–30 minutes via secure video call.
Is the video consultation private?
Yes. All consultations with Dr. Jassey are conducted through a HIPAA-compliant, fully encrypted telehealth platform to ensure your privacy and confidentiality.
Are Dr. Jassey's medical credentials verifiable?
Yes. Dr. Jassey's NPI number (1740343847) is publicly listed in the NPPES registry maintained by the U.S. Department of Health & Human Services, and his state licenses are verifiable through each state's medical board.
What happens if Dr. Jassey isn't available when I request him?
If Dr. Jassey is unavailable at your requested time, our support team will assist you in scheduling an appointment at the earliest available slot or connect you with another qualified physician on our platform.
Still have questions? Our team is here to help.
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