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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).

Learn more about Dr. William Kessler:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. William Kessler is Excellent. Dr. Kessler has been reviewed by 2 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. William Kessler, MD is board certified in Hematology.

Education & Awards

Dr. Kessler graduated from Yeshiva University, Bronx. He has 1 awards.

Castle Connolly Top Doctors: New York Metro Area™ (2003 - 2008, 2010 - 2014)


Dr. Kessler has 1 hospital affiliations:

  • Trinitas Hospital 


  • English

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Additional Information
Dr. William Warren Kessler MD is a male Hematologist, has 36 years of experience and practices in Hematology.
Where does Dr. William W. Kessler practice?
Dr. William Kessler has 1 office location.
Dr. William Kessler practices Hematology near Elizabeth, NJ.
See Elizabeth Hematologists.