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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 (5)

The overall average patient rating of Dr. Stuart Leff is Excellent. Dr. Leff has been reviewed by 15 patients who have provided 5 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 4.7
Courteous Staff 4.8
Accurate Diagnosis 4.3
Bedside Manner 4.4
Spends Time with Me 4.2
Follows Up After Visit 4.3

Specialties & Research

Dr. Stuart Leff, DO is board certified in Internal Medicine.

  • He has special expertise in 2 areas:
  • Allergy
  • Asthma

Education & Awards

Dr. Leff graduated from Des Moines University. He has 2 awards.

Patients' Choice Award (2015)
On-Time Doctor Award (2014 - 2015)


Dr. Leff has 7 hospital affiliations:

  • St Barnabas Medical Center 
  • Overlook Hospital 


  • English

> > > > Dr. Stuart Leff, DO

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Additional Information
Dr. Stuart Jay Leff DO is a male Internist, has 34 years of experience and practices in Internal Medicine.
Where does Dr. Stuart J. Leff practice?
Dr. Stuart Leff has 1 office location.
Dr. Stuart Leff practices Internal Medicine near Roselle Park, NJ.
See Roselle Park Internists.