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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).

Learn more about Dr. Leonard Cohen:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (8)

The overall average patient rating of Dr. Leonard Cohen, Allergist & Immunologist is Average. Dr. Cohen has been reviewed by 12 patients who have provided 8 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 2.5
Promptness 3.1
Courteous Staff 2.6
Accurate Diagnosis 4.0
Bedside Manner 3.7
Spends Time with Me 3.7
Follows Up After Visit 3.1

Specialties & Research

Dr. Leonard Cohen, FAAAAI, MD, PHD is board certified in Allergy & Immunology.

  • He has special expertise in 8 areas:
  • Asthma
  • Food Allergy (Hypersensitivity)
  • Hay Fever (Seasonal Allergic Rhinitis)
  • Hereditary Angioedema
  • Hives (Urticaria)
  • Immunotherapy
  • Nasal Allergy (Rhinitis)
  • Sinus Infection (Sinusitis)

Education & Awards

Dr. Cohen graduated from New York University. He has 1 awards.

Dr. Cohen was selected as "Best Docs in America" from 1995 thru 2013


Dr. Cohen has 8 hospital affiliations:

  • St Francis Hospital & Medical Center 
  • University of Connecticut Health Center 


  • English

> > > > Dr. Leonard Cohen, FAAAAI, MD, PHD

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Additional Information
Dr. Leonard Cohen FAAAAI, MD, and PHD is a male Allergist & Immunologist, has 34 years of experience and practices in Allergy & Immunology.
Where does Dr. Leonard Cohen practice?
Dr. Leonard Cohen has 1 office location.
Dr. Leonard Cohen practices Allergy & Immunology near West Hartford, CT.
See West Hartford Allergists.