Summary

Dr. Elmer Chang is a gastroenterologist who specializes in diagnosing and treating conditions affecting the digestive system. He completed fellowship training at UCLA Medical Center in 2007, followed by additional fellowship training at UCSF Medical Center at Parnassus in 2008. Dr. Chang speaks English and brings specialized expertise to help patients with complex gastrointestinal concerns.

Dr. Chang practices at Providence Mission Hospital and sees patients at the Providence Center for Digestive Health in Mission Viejo, California. He treats conditions such as colon polyps, hemorrhoids, and GERD. His procedures include colonoscopy and lower GI endoscopy to help diagnose and monitor digestive health issues. Patients rate Dr. Chang 4.4 out of 5 stars on average.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4.4
  • 27 insurance plans accepted
  • speaks English
  • UCSF Medical Center at Parnassus
  • 4 written reviews
  • 2 specialties
  • 12 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

Providence Center for Digestive Health - Mission Viejo

27799 Medical Center Road Suite 320Mission Viejo, CA 92691

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Dr. Elmer Yeong-Shin Chang, MDAshley Anderson, APRNJi Soo Choi, APRNChimdi Mfebe, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
Virtual Visit Available Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
Mission Viejo , CASACRAMENTO , CASACRAMENTO , CALittle Rock , AR
Med School: East Tennessee State University - Quillen College of Medicine Med School: New York University Med School: Chamberlain University College of Nursing
Current Profile
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Insurance Plans Accepted by Dr. Elmer Yeong-Shin Chang

  • Accepts Medicare
  • Aetna - HMO
  • Aetna Medicare Advantage HMO
  • Aetna Medicare Advantage PPO
  • Aetna PPO
  • Anthem Blue Cross HMO
  • Anthem Blue Cross Medicare Advantage
  • Anthem Blue Cross Medicare PPO
  • Anthem Blue Cross PPO
  • Blue Shield of CA HMO
  • Blue Shield of CA HMO - Trio
  • Blue Shield of CA Medicare Advantage
  • Blue Shield of CA PPO
  • Cigna HMO
  • Cigna PPO
  • Coventry/First Health PPO
  • Health Net - HMO
  • Health Net - Medicare Advantage
  • Health Net PPO
  • HealthSmart (Interplan) PPO
  • Multiplan PPO
  • Providence Health Plan - Medicare Advantage
  • SCAN Medicare Advantage
  • TriWest - Tricare
  • United Healthcare HMO
  • United HealthCare PPO
  • US Family Health Plan - TriCare
  • Vivity by Anthem Blue Cross

Medical Specialties

Dr. Elmer Yeong-Shin Chang has the following 2 specialties

Specialty Expertise

Dr. Elmer Yeong-Shin Chang has the following 12 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colon Cancer
  • Colonoscopy
  • Constipation
  • Gastroenterologist
  • Hemorrhoids
  • Inflammatory Bowel Diseases (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Peptic Ulcer
  • Ulcerative Colitis

Certifications, License, & Education

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Fellowship

UCSF Medical Center at Parnassus2008
UCLA Medical Center2007

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Frequently Asked Questions

Does Dr. Elmer Chang accept my insurance?
You can see the insurance plans that Dr. Elmer Chang accepts on their Vitals profile.
Which hospitals is Dr. Elmer Chang affiliated with?
Dr. Elmer Chang is affiliated with Providence Mission Hospital.
Does Dr. Elmer Chang accept virtual/telehealth appointments?
Yes, Dr. Elmer Chang accepts virtual/telehealth appointments. Click the virtual visit button on their Vitals profile.
What languages does Dr. Elmer Chang speak?
Dr. Elmer Chang speaks English.
Is Dr. Elmer Chang accepting new patients?
Dr. Elmer Chang is accepting new patients on Vitals. View Dr. Elmer Chang's profile on Vitals to make an appointment.

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