Chang C.Y. Michael

C.Y. Michael Chang, MD


  • Specialty: Gastroenterology
  • Clinical Interests: Colon Cancer Screening, Colonoscopy, Esophageal Disease, Hepatitis, Inflammatory Bowel Disease, Liver Disease, Video Capsule Endoscopy
  • Languages: English, Taiwanese, Mandarin Chinese, Interpreters Available
  • Gender: Male


Dr. Chang graduated cum laude from UCLA where he double majored in microbiology and economics. He received his medical degree from Baylor College of Medicine and completed his internal medicine residency at the University of California, Irvine. Dr. Chang pursued advanced training in gastroenterology and hepatology at Mount Sinai Medical Center in New York and joined Gastroenterology Specialists of Oregon in 2002.

Dr. Chang is board certified in internal medicine and gastroenterology and is proficient in all endoscopic procedures including capsule endoscopy. Dr. Chang serves on the Medical Care Advisory Board at Willamette Falls Hospital and the Medical Executive Committee at Legacy Meridian Park Hospital.

Education and Certification

  • Medical School: Baylor College of Medicine
  • Residency: University of California - Irvine, CA
  • Internship: University of California - Irvine, CA
  • Fellowship: Mount Sinai Medical College - NY

Personal Interests

Spending time with family, Traveling, Golfing, Tennis

Contact Information

  • Practice Name: Gastroenterology Specialists of Oregon

Office Locations

  1. Primary Address
    Gastroenterology Specialists of Oregon
    • 19250 SW 90th Ave
    • Tualatin, OR, 97062
    • Phone: 503 692-3750
    • Fax: 503 691-2324
    • Clinic Hours:
    • Weekdays
  2. Secondary Address
    Gastroenterology Specialists of Oregon
    • 1508 Division St, Ste 15
    • Oregon City, OR, 97045
    • Phone: 503 692-3750
    • Fax: 503 657-6502

Hospital Locations

  1. Primary Address
    Legacy Meridian Park Medical Center
    • 19300 SW 65th Avenue
    • Tualatin, Oregon, 97062
    • Phone: 503-692-1212