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Marc Ettensohn

Dr. Marc Ettensohn, MD

PsychiatryAddiction Medicine
Accepting New Patients
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Marc Ettensohn

Dr. Marc Ettensohn , MD




Marc Ettensohn, MD graduated from the University of Louisville School of Medicine and completed his psychiatry residency program at the University of Florida School of Medicine, where he served as Chief Resident for the University of Florida Department of Psychiatry.

He also completed an ECT fellowship at Emory University and an administrative fellowship at the American Board of Psychiatry and Neurology. After his training, he became the medical director for the private practice, Actify of South Florida, specializing in the use of intravenous and intranasal ketamine for treatment-resistant anxiety and depressive disorders. Afterwards, he went on to develop his own private practice, Cornerstone Psychiatric Care, which continues to focus on interventional treatment for psychiatric disorders and frequently utilizes ketamine therapy.

Part-time, he provides hospital consultation and psychiatric inpatient care. as a diplomate of the American Board of Psychiatry and Neurology, he serves as an ambassador and committee member for The Board. He is also an active member of the American Psychiatric Association, The Florida Psychiatric Society, and the American Society of Ketamine Physicians.

He has coauthored several peer-reviewed papers in the medical literature, describing the use of ketamine for psychiatric disorders, such as Advances in Psychedelic Medicine: State-of-the-Art Therapeutic Applications and The Rise of Ketamine in Clinical practice.

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Explains conditions and treatments
Takes time to answer my questions
Provides follow-up as needed
Office cleanliness

Based on patient feedback.


Dr. Ettensohn's Rating
Patient Perspective
5.0 Explains conditions and treatments
5.0 Takes time to answer my questions
5.0 Provides follow-up as needed
Office Rating
Showing ratings for:
8895 N Military Trl Suite 300E STE 300E, WEST PALM BEACH, FL, 33410
n/a Average office wait time
5.0 Office cleanliness
5.0 Courteous staff
5.0 Scheduling flexibility
Cornerstone Psychiatric Care
8895 N Military Trl Suite 300E STE 300E
Showing 1-1 of 1 review
"he is the best listener! he got all my meds straighten out. He has a lot of Patience, he's the best!!!!"
  • October 25, 2023


Cornerstone Psychiatric Care
8895 N Military Trl Suite 300E STE 300E
  • Accepting New Patients
Mon8:00 am - 6:00 pm
Tue8:00 am - 6:00 pm
Wed8:00 am - 6:00 pm
Thu8:00 am - 6:00 pm
Fri8:00 am - 6:00 pm
  • Accepting New Patients


Medical School
University Of Louisville School Of Medicine
Graduated 2012
University of Florida School of Medicine


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  • Medicare
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  • Medicare Advantage
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