Leonard Kessler, M.D. facp


Compassionate care


  • After 40 years of practicing Hematology-Oncology including pain management,  Dr. Kessler is now limiting his medical practice to the use of MEDICAL MARIJUANA for the treatment of eligible conditions under the New York State Compassionate Care Act. No other prescriptions or treatments will be offered.


  • Consultations with close supervision, guidance and certification are provided to eligible patients for the use of MEDICAL MARIJUANA based on the New York State Health Care System Medical Marijuana Program guidelines.  No health insurance plans, including government health plans or private insurance plans, are accepted.


  • You are potentially eligible for MEDICAL MARIJUANA if you have been diagnosed with a specific severe, debilitating or life threatening condition that is accompanied by an associated or complicating condition. Eligible conditions are: cancer, HIV infection or AIDS, amyotrophic lateral sclerosis (ALS), Parkinson's disease, multiple sclerosis, spinal cord injury with spasticity, epilepsy, inflammatory bowel disease, neuropathy, Huntington's disease, post-traumatic sress disorder, chronic pain ( as defined by 10 NYCRR section 1004.2(a)(8)(xi)), pain that degrades health and functional capability as an alternative to opioid use or substance abuse disorder. The severe debilitating or life-threatening condition must also be accompanied by one or more of the following or associated or complicating conditions: cachexia or wasting syndrome, severe or chronic pain, severe nausea, seizures, or severe or persistent muscle spasms, PTSD or opioid use disorder.

Contact Us

Please bring to your initial consultation a copy of only those medical records confirming your diagnosis or diagnoses and associated or complicating eligible medical conditions.

CONTACT US - By Phone.

Leonard Kessler, M.D. FACP

Ryan Medical Arts Building, 2000 N. Village Ave, Suite 312, Rockville Centre, NY 11570

Phone (516) 474-2399, Fax (516) 665-8988


Call for an appointment.