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About Dr. Elmer Y Chang MD
Dr. Elmer Y Chang, MD is a Doctor primarily located in Mission Viejo, CA, with another office in Santa Rosa, CA. He has 21 years of experience. Dr. Chang is affiliated with Mission Hospital Regional Medical Center and Mission Hospital Regional Medical Center. He speaks English.
Dr. Elmer Y Chang has 2 locations
27871 Medical Center Rd Ste 200
Mission Viejo, CA 92691
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Dr. Elmer Y Chang has the following 11 expertise
- Acid Reflux Disease (GERD)
- Ulcerative Colitis
- Irritable Bowel Syndrome (IBS)
- Inflammatory Bowel Diseases (IBD)
- Peptic Ulcer
- Colon Cancer
- Abdominal Pain
- Celiac Disease
Showing 5 of 5
Very Happy with Dr. Chang
Self-verified patient of Dr. Elmer Y Chang - Posted on August 18th, 2015
I recently had a Colonoscopy and Endoscopy performed by Dr Chang and Staff. I was very nervous leading up to this as I had not been knocked out in 25 years and my anxious mind thinks about all the things that go wrong. Dr. Chang calmed in the weeks leading up to the procedure with statistics of his experiences and how rare problems are. Just in case he also informed me of the equipment and staff qualifications they have just in a worst case scenario. Plus I also like the fact that Mission Hospital is literally a 1/4 mile away. My procedure went very smooth and I met briefly with Dr. Chang after and he went over the finding in a clear concise manner. He also sent me home same day with a report of the findings (minus the biopsies which take time). This was great because I could over the information (I like to do that) and then formulate any question I have for our follow-up appointment. At our follow-up appointment, Dr. Chang was very patient and thorough in explaining all the findings (all minor) and suggested various treatment options. He was very knowledgeable and at the same time keeping an open ear for all my concerns and questions. I see a lot of doctors for various conditions and Dr. Chang is probably the best one I have encountered so far when it comes to communication and explaining things in a way I can understand. I am very happy to have him as my Gastroenterologist.
Best Doctor I've Ever Seen!
Self-verified patient of Dr. Elmer Y Chang - Posted on April 5th, 2014
Dr. Chang is the real deal! He was BEYOND THOROUGH in searching out every possible cause of my ischemic colitis. He called me on several different occasions with results late in the evenings after he had finished his patient appointments. He is caring and compassionate. Nothing gets by Dr. Chang. He is crazy smart and certainly the best out there!
Self-verified patient of Dr. Elmer Y Chang - Posted on March 21st, 2013
Love Dr. Chang
Self-verified patient of Dr. Elmer Y Chang - Posted on November 15th, 2012
Patients' Choice Award (2014, 2015, 2017, 2018)
Patients' Choice recognition reflects the difference a particular physician has made in the lives of his/her patients. The honor is bestowed to physicians who have received near perfect scores, as voted by patients.
Compassionate Doctor Recognition (2018)
Compassionate Doctor certification is granted to physicians who treat their patients with the utmost kindness. The honor is granted based on a physician's overall and bedside manner scores.
On-Time Doctor Award (2018)
Vitals On-Time + Promptness Award recognizes doctors with consistent high ratings for timeliness of appointments. The honor is granted based on a physician's overall and promptness scores.
Top 10 Doctor - City (2014)
Top 10 Doctors are chosen by the millions of patients who visit Vitals each year to find a new doctor and share their experiences by providing ratings and reviews. In order to differentiate highly-regarded doctors from the rest for patients in search of quality care, Vitals awards Top 10 Doctor honors to those physicians within a certain specialty and geographic area who are consistently given top ratings by their patients.
Dr. Chang is affiliated (can practice and admit patients) with the following hospital(s).
21 Years Experience
Northwestern University The Feinberg School Of Medicine
Graduated in 1998
Dr. Elmer Y Chang Accepts the Following Insurance
- Aetna Choice POS II
- Aetna Managed Choice POS Open Access
- Aetna Signature Administrators PPO
Blue Cross California
- BC CA California Care Small Group HMO
- Blue Cross CA PPO Prudent Buyer Small Group
- Blue Cross CA California Care Large Group HMO
- Blue Cross CA PPO Prudent Buyer Individual
- Blue Cross CA PPO Prudent Buyer Large Group
- Blue Cross CA Select HMO
- Blue Cross CA Select PPO
- Blue Cross CA Select Plus HMO
Blue Shield California
- BS CA Platinum 90 PPO
- Blue Shield CA Access Plus HMO
- Blue Shield CA Access Plus Savenet
- Blue Shield CA Bronze 60 PPO SHOP
- Blue Shield CA Bronze Full PPO 4500
- Blue Shield CA Local Access Plus HMO
- Blue Shield CA PPO
- Blue Shield CA Platinum Access+ HMO 25
- Blue Shield CA Platinum Local Access + HMO 25
- Blue Shield CA Silver 70 PPO
- Blue Shield CA Trio ACO HMO
- CIGNA HMO
- CIGNA LocalPlus
- CIGNA Open Access Plus
- CIGNA PPO
- Cigna Southern CA Select
- First Health PPO
- Health Net CA HMO Employer Group
- Health Net CA Individual and Family PPO
- Health Net CA PPO
- Humana Choice POS
- UHC Choice Plus POS
- UHC Options PPO
Locations & Directions
Dr. Elmer Y Chang is similar to the following 4 Doctors near Mission Viejo, CA.