Browse Health
Primary Care Doctor, Family Practitioner
28 years of experience
Accepting new patients
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. John Chang is Excellent. Dr. Chang has been reviewed by 10 patients who have provided 5 comments. The rating is 4.5 out of 5 stars.

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

Education & Awards

Dr. Chang graduated from University of New England, Biddeford. He has 2 awards.

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


Dr. Chang has 4 hospital affiliations:

  • Caritas Holy Family Hospital & Medical Center 
  • Lawrence General Hospital 


  • Chinese
  • Spanish

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Additional Information
Dr. John Vincent Chang DO and MD is a male Family Practitioner, has 28 years of experience and practices in Family Medicine.
Where does Dr. John V. Chang practice?
Dr. John Chang has 1 office location.
Dr. John Chang practices Family Medicine near Lawrence, MA.
See Lawrence Primary Care Doctors.