See All Hematologists in Rockville Centre, NY
Dr. Leonard Kessler, MD

Dr. Leonard Kessler, MD

Age 70 Hematology M
(13) 13 reviews


Dr. Leonard Kessler, MD is a hematology specialist in Rockville Centre, NY. Dr. Kessler completed a residency at Mem Sloan Kettering Cancer Center. He currently practices at S Shore Hem/Onc Associates and is affiliated with Mount Sinai South Nassau. Dr. Kessler is board certified in Hematology.


  • Mem Sloan Kettering Cancer Center, Residency Hospital
  • Montefiore M C H&l Moses Division, Residency Hospital

Insurance Accepted

  • Cigna
  • EmblemHealth
  • Humana

* Please verify this information when scheduling an appointment.


  1. S Shore Hem/Onc Associates

    1. 1
      S Shore Hem/Onc Associates
      242 Merrick Rd Ste 301, Rockville Centre, NY 11570 Existing Patients: (516) 536-1455

Patient Satisfaction

Likelihood to recommend Dr. Kessler
Based on 13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Leave a review

How likely are you to recommend Dr. Kessler?

(Select your rating)
Excellent, Caring doctor, very Intelligent, the best of the best
— Sep 16, 2018
See more reviews on Healthgrades
Photo: Dr. Leonard Kessler, MD
Dr. Leonard Kessler, MD
  • Likelihood of recommending Dr. Kessler to family and friends

Dr. Kessler's Office & Staff

  • Ease of scheduling urgent appointments
  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Kessler

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Spends appropriate amount of time with patients

Tell Us About Yourself

  • Your gender:
  • Your age group:
  • Number of office visits you've had in the last 2 years:

Finish Here

  • How would you like to confirm your survey information?
    Standard text messaging and data rates may apply.
Thank you for sharing your feedback about Dr. Leonard Kessler, MD.

Frequently Asked Questions

Dr. Kessler frequently treats Anemia, Vitamin B Deficiency, and Bleeding Disorders.  

Find contact information here to make an appointment.

Hospital Affiliations

  • Mount Sinai South Nassau