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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. Ellen Chajson:

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Specialties & Research

Dr. Ellen Chajson, MD is board certified in Internal Medicine.

Education & Awards

Dr. Chajson graduated from Yeshiva University, Bronx.


Dr. Chajson has 2 hospital affiliations:

  • Robert Wood Johnson Univ Hosp 
  • Saint Peter's University Hospital 

> > > > Dr. Ellen Chajson, MD

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Additional Information
Dr. Ellen Sue Chajson MD is a female Internist, has 26 years of experience and practices in Internal Medicine.
Where does Dr. Ellen S. Chajson practice?
Dr. Ellen Chajson has 2 office locations.
Dr. Ellen Chajson practices Internal Medicine near Kendall Park, NJ.
Additional practice locations include: Somerset, NJ.
See Kendall Park Internists.