Summary

Dr. Elmer Chang is a gastroenterologist who specializes in diagnosing and treating conditions affecting the digestive system. He completed his fellowship training at UCLA Medical Center in 2007, followed by an additional fellowship at UCSF Medical Center at Parnassus in 2008. This dual fellowship experience has provided him with comprehensive expertise in gastroenterology care. Dr. Chang communicates with patients in English.

Dr. Chang practices at Providence Mission Hospital and sees patients at the Providence Center for Digestive Health in Mission Viejo, California. He treats patients with colon polyps, hemorrhoids, and GERD. His procedural expertise includes performing colonoscopies and lower GI endoscopy procedures. Dr. Chang also utilizes pathology tests to help diagnose digestive conditions. Patients have given him an average rating of 4.4 out of 5 on Vitals.

Overview based on verified provider data

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

Patients’ Perspective

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

Office Location

Providence Center for Digestive Health - Mission Viejo

27799 Medical Center Road Suite 320Mission Viejo, CA 92691

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Elmer Yeong-Shin Chang, MD
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Elmer Yeong-Shin Chang, MDBhavana Akotia, PA-CChimdi Mfebe, APRNJi Soo Choi, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
Mission Viejo , CATempe , AZLittle Rock , ARSACRAMENTO , CA
Med School: Charles R Drew University Med School: Chamberlain University College of Nursing Med School: New York University
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Insurance Plans Accepted by 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

Elmer Yeong-Shin Chang has the following 2 specialties

Specialty Expertise

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

Elmer Yeong-Shin Chang holds an active medical license in the state of California.

Medical License

Medical Doctor with an active medical license in the state of California that expires in 2026.

Education & Training

Fellowship

Completed their fellowship at UCSF Medical Center at Parnassus in 2008 and UCLA Medical Center in 2007.

NPI Number

Elmer Yeong-Shin Chang's NPI number is 1912083353.

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Frequently Asked Questions

Does Elmer Chang accept my insurance?
You can see the insurance plans that Elmer Chang accepts on their Vitals profile.
Where is Elmer Chang's office located?
Elmer Chang's office is located at 27799 Medical Center Road Suite 320, Mission Viejo, CA, 92691.
What languages does Elmer Chang speak?
Elmer Chang speaks English.
How can I make an appointment with Elmer Chang?
You can find contact information for Elmer Chang here on Vitals.
Which hospitals is Elmer Chang affiliated with?
Elmer Chang is affiliated with Providence Mission Hospital.

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