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Dermatologist (skin), Pediatric Specialist
25 years of experience
Accepting new patients
Video profile
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).

Learn more about Dr. Leonard Kristal:

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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 Kristal is Excellent. Dr. Kristal has been reviewed by 33 patients who have provided 8 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.5
Promptness 3.4
Courteous Staff 4.3
Accurate Diagnosis 4.6
Bedside Manner 4.4
Spends Time with Me 4.1
Follows Up After Visit 4.3

Specialties & Research

Dr. Leonard Kristal, MD is board certified in Dermatology and Pediatric Dermatology.

  • He has special expertise in 6 areas:
  • Acne (Acne Vulgaris)
  • Acne Rosacea
  • Melanoma
  • Pediatric Dermatology
  • Psoriasis
  • Skin Cancer

Education & Awards

Dr. Kristal graduated from Rosalind Franklin University, North Chicago. He has 3 awards.

Castle Connolly Top Doctors: New York Metro Area™ (2005 - 2008, 2010 - 2015)
Patients' Choice 5th Anniversary Award (2014)
Patients' Choice Award (2010 - 2014)


Dr. Kristal has 13 hospital affiliations:

  • Stony Brook University Hospital 
  • North Shore University Hospital 


  • Spanish

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Additional Information
Dr. Leonard Kristal MD is a male Dermatologist, has 25 years of experience and practices in Dermatology and Pediatric Dermatology.
Where does Dr. Leonard Kristal practice?
Dr. Leonard Kristal has 1 office location.
Dr. Leonard Kristal practices Dermatology and Pediatric Dermatology near East Setauket, NY.
See East Setauket Dermatologists and East Setauket Pediatric Specialists.