Summary

Dr. Alan Chang is a gastroenterologist with additional expertise in internal medicine and emergency medicine. He earned his medical degree from the University of Hawaii at Manoa and completed his residency at St. Vincent Hospital. With 37 years of experience in medicine, Dr. Chang brings extensive knowledge to his practice. He is fluent in English.

Dr. Chang is affiliated with PeaceHealth Saint Joseph Medical Center, Gundersen Lutheran Medical Center, and CentraCare Saint Cloud Hospital, providing care in Bellingham, Washington. He specializes in treating conditions such as colon polyps, gastritis, and diverticular disease. His procedural expertise includes performing colonoscopies and lower GI endoscopy procedures. Patients have given him an average rating of 5.0 on Vitals.

Overview based on verified provider data

Quick Facts

  • 5
  • 37 years of experience
  • speaks English
  • St Vincent Hospital
  • 1 written review
  • 3 specialties
  • 12 areas of expertise
  • 3 board certifications
  • 3 hospital affiliations
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Alan Gar Yin Chang has 2 locations

Mount Baker Imaging

2930 Squalicum Pkwy Ste 101Bellingham, WA 98225
Mon7:00 am - 6:00 pm
Tue7:00 am - 6:00 pm
Wed7:00 am - 6:00 pm
Thu7:00 am - 6:00 pm
Fri7:00 am - 6:00 pm
Sat8:30 am - 3:30 pm
SunClosed

Peacehealth Saint Joseph Medical Center

2901 Squalicum PkwyBellingham, WA 98225

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Dr. Alan Gar Yin Chang, MDJi Soo Choi, APRNDr. Katherine Palao Chua-GooDr. Josephine Bernice Dy Garcia
GastroenterologyGastroenterologyInternal MedicineInternal Medicine
Accepts New Patients
37 Years of Experience 42 Years of Experience 10 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English
Bellingham , WASACRAMENTO , CABellingham , WABellingham , WA
Med School: University Of Hawaii At Manoa Med School: New York University Med School: Far Eastern University Inst Of Med Nicanor Reyes Medical Foundation Med School: University Of Washington School Of Medicine
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Insurance Plans Accepted by Dr. Alan Gar Yin Chang

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Alan Gar Yin Chang has the following 3 specialties

Specialty Expertise

Dr. Alan Gar Yin Chang has the following 12 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Emergency Medicine
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

37 Years Experience

Dr. Alan Gar Yin Chang holds an expired medical license in the state of Washington.

Medical License

Medical Doctor with an expired medical license in the state of Washington that expired in 2026.

Education & Training

Residency

Completed their residency at St Vincent Hospital.

Medical School

Graduated from University Of Hawaii At Manoa in 1989.

NPI Number

Dr. Chang's NPI number is 1255398285.

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Frequently Asked Questions

Does Dr. Alan Chang accept my insurance?
You can see the insurance plans that Dr. Alan Chang accepts on their Vitals profile.
What languages does Dr. Alan Chang speak?
Dr. Alan Chang speaks English.
Does Dr. Alan Chang accept virtual/telehealth appointments?
Dr. Alan Chang has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Alan Chang affiliated with?
Dr. Alan Chang is affiliated with Peacehealth Saint Joseph Medical Center, Gundersen Lutheran Medical Center, and Centracare Saint Cloud Hospital.
Is Dr. Alan Chang accepting new patients?
Dr. Alan Chang has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.

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