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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. Stephen Witanowski:

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  1. Qualifications
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Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Stephen Witanowski is Good. Dr. Witanowski has been reviewed by 7 patients who have provided 3 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.3
Courteous Staff 3.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Stephen Witanowski, MD is board certified in Internal Medicine.

Education & Awards

Dr. Witanowski graduated from Universite De Liege.


Dr. Witanowski has 3 hospital affiliations:

  • St Catherine Of Siena Medical Center 
  • Mt Sinai Hospital 
  • North Shore/Long Island Jewish Hospital System - Huntington Hospital 


  • Spanish
  • French

> > > > Dr. Stephen Witanowski, MD

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Additional Information
Dr. Stephen John Witanowski MD is a male Internist, has 30 years of experience and practices in Internal Medicine.
Where does Dr. Stephen J. Witanowski practice?
Dr. Stephen Witanowski has 6 office locations.
Dr. Stephen Witanowski practices Internal Medicine near Nesconset, NY.
Additional practice locations include: Huntington Station, NY and Hauppauge, NY.
See Nesconset Internists.