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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (13)

The overall average patient rating of Dr. Lyle Dennis, Neurologist is Good. Dr. Dennis has been reviewed by 32 patients who have provided 13 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.3
Promptness 3.3
Courteous Staff 3.0
Accurate Diagnosis 3.4
Bedside Manner 3.5
Spends Time with Me 3.6
Follows Up After Visit 3.2

Specialties & Research

Dr. Lyle Dennis, MD is board certified in Neurology and Vascular Neurology.

  • He has special expertise in 5 areas:
  • Alzheimer's Disease
  • Epilepsy
  • Full service neurologic consultations and management of neurological diseases
  • Migraine Disorders
  • Multiple Sclerosis (MS)

Education & Awards

Dr. Dennis graduated from Yeshiva University, Bronx.


Dr. Dennis has 12 hospital affiliations:

  • New York Presbyterian Hospital / Columbia 
  • NewYork-Presbyterian / Weill Cornell 


  • Polish
  • French
  • English
  • Spanish

> > > > Dr. Lyle Dennis, MD

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Additional Information
Dr. Lyle James Dennis MD is a male Neurologist, has 17 years of experience and practices in Neurology, Clinical Neurophysiology, and Vascular Neurology.
Where does Dr. Lyle J. Dennis practice?
Dr. Lyle Dennis has 4 office locations.
Dr. Lyle Dennis practices Neurology, Clinical Neurophysiology, and Vascular Neurology near West Nyack, NY.
Additional practice locations include: Mahwah, NJ and Hackensack, NJ.
See West Nyack Neurologists.