Skip to main content

Dr. Chang is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
  • Connect with colleagues in the same hospital or clinic.
  • Read the latest clinical news, personalized to your specialty.

See Dr. Chang's full profile

Already have an account?

  • Office

    657 Willow Grove St
    Ste 401
    Hackettstown, NJ 07840
    Phone+1 908-850-7800
    Fax+1 908-850-7802

Education & Training

  • Icahn School of Medicine at Mount Sinai/St Luke’s-Roosevelt Hospital Center
    Icahn School of Medicine at Mount Sinai/St Luke’s-Roosevelt Hospital CenterFellowship, Gastroenterology, 1995 - 1997
  • NYU Grossman School of Medicine
    NYU Grossman School of MedicineResidency, Internal Medicine, 1992 - 1995
  • Northwestern University The Feinberg School of Medicine
    Northwestern University The Feinberg School of MedicineClass of 1992

Certifications & Licensure

  • NJ State Medical License
    NJ State Medical License 1997 - 2025
  • NY State Medical License
    NY State Medical License 1993 - 2007
  • American Board of Internal Medicine Internal Medicine
  • American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

  • CMS Meaningful Use Stage 1 Certification PrimeSUITE EHR, Greenway Health, LLC, 2013

Professional Memberships