Dr. Joseph Yun Jo Chang, MD

Dr. Chang practices at Altru Hospital in Grand Forks, North Dakota, part of Altru Health System.

Dr. Chang's NPI, 1417968256, was assigned on August 10, 2006. Dr. Chang graduated from Boston University School Of Medicine in 2005. Dr. Chang's Colorado license number on file is DR.0070441.

Dr. Chang's primary practice is Altru Hospital, at 1200 S Columbia Rd, Grand Forks, ND 58201 in Grand Forks County. The practice phone is (701) 780-5000.

Dr. Chang's primary practice is Altru Hospital in Grand Forks, North Dakota, part of Altru Health System. The medical group on file is Altru Health System.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices. Vendor and product names are available with a free account.

Gastroenterology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chang is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Chang's licenses on file in 6 states: Colorado, South Dakota, Hawaii, Washington, North Dakota and Oregon.

Dmand AI lists colonoscopy, gastrointestinal bleeding and upper GI endoscopy among the conditions Dr. Chang treats.

CMS data shows 426 Medicare services from Dr. Chang across 6 procedure codes in 2024, for 290 Medicare patients. Medicare paid $40,782 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 290 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 156 patients. 73% of them have high cholesterol, and 70% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 72, with 56% women.

In 2024, Dr. Chang wrote 67 Medicare Part D claims for 38 patients. 97% of them were for generic drugs. CMS names the drug for 57 of them, across 3 drugs with 11 or more claims each, at $1,468 in total drug cost. In 2023, CMS named 103 claims across 4 drugs.

Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 422 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Chang, more than 98% of the clinicians it reports for that procedure.

Dmand AI links 13 papers to Dr. Chang, published from 2009 to 2018. 2010 was the busiest year, with 3. The most frequent topics are Irritable Bowel Syndrome, Minnesota and Anti-Inflammatory Agents. Dr. Chang has published most often in Neurogastroenterol Motil. Dr. Chang's most frequent co-authors are Neil R. Brummond, MD, Sunanda V. Kane, MD and Joseph Larson.

CMS Open Payments shows 126 general payments to Dr. Chang from 16 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 66% of the total. Allergan Inc. paid the most, $19,695.

Dmand AI lists 1 award for Dr. Chang, most recently CMS Stage 1 EHR in 2013.

Dr. Chang graduated from Boston University School Of Medicine in 2005.

Dr. Chang is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.