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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 (3)

The overall average patient rating of Dr. Alan Nissenbaum is Excellent. Dr. Nissenbaum has been reviewed by 16 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.3
Courteous Staff 4.8
Accurate Diagnosis 5.0
Bedside Manner 4.8
Spends Time with Me 4.8
Follows Up After Visit 5.0

Education & Awards

Dr. Nissenbaum graduated from Rheinisch-Westfalische Technische Hochschule Aachen. He has 2 awards.

Patients' Choice Award (2014 - 2015)
Compassionate Doctor Recognition (2014 - 2015)


Dr. Nissenbaum has 7 hospital affiliations:

  • Beth Israel Medical Center Petrie Division 
  • Maimonides Medical Center 


  • Arabic
  • Hebrew
  • Yiddish
  • German
  • French
  • Russian
  • Spanish
  • Polish
  • English

> > > > Dr. Alan Nissenbaum, MD

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Additional Information
Dr. Alan Leon Nissenbaum MD is a male Internist, has 29 years of experience and practices in Internal Medicine and Nephrology.
Where does Dr. Alan L. Nissenbaum practice?
Dr. Alan Nissenbaum has 2 office locations.
Dr. Alan Nissenbaum practices Internal Medicine and Nephrology near Brooklyn, NY.
See Brooklyn Internists and Brooklyn Nephrologists.