Browse Health
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. Christopher Chang:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Christopher Chang is Excellent. Dr. Chang has been reviewed by 9 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.8
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Chang graduated from University of California at San Francisco. He has 1 awards.

Compassionate Doctor Recognition (2014)


Dr. Chang has 4 hospital affiliations:

  • Cedars-Sinai Medical Center 
  • UCLA Medical Center 

> > > > Dr. Christopher Chang, MD, PHD

Similar doctors nearby

Dr. Puja Vora

Internal Medicine
5 years experience
Los Angeles, CA

Dr. Wendy Sacks

Internal Medicine
8 years experience
Los Angeles, CA

Dr. Laura Giffin Audell

29 years experience
Los Angeles, CA

Dr. Puja Mehta

Internal Medicine
9 years experience
Los Angeles, CA

Dr. Chrisandra Shufelt

Internal Medicine
7 years experience
Los Angeles, CA

Dr. Edmund Lonergan

Internal Medicine
Los Angeles, CA
Search All Similar Doctors
Additional Information
Dr. Christopher Han Sheng Chang MD and PHD is a male Internist, has 16 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Christopher H. Chang practice?
Dr. Christopher Chang has 1 office location.
Dr. Christopher Chang practices Internal Medicine and Gastroenterology near Los Angeles, CA.
See Los Angeles Internists and Los Angeles Gastroenterologists.