Huan J. Chang

Huan Chang practices at University of Illinois Hospital in Chicago, Illinois, part of University of Illinois System.

Huan Chang's NPI, 1336244870, was assigned on September 13, 2006. Huan Chang graduated from Geisel School of Medicine at Dartmouth in 1988. Huan Chang holds Illinois license 036083242.

Huan Chang's primary practice is University of Illinois Hospital, at 1740 West Taylor St Suite 1400, Chicago, IL 60612 in Cook County. The practice phone is (312) 996-3900.

Huan Chang's primary practice is University of Illinois Hospital in Chicago, Illinois, part of University of Illinois System. The medical group on file is University of Illinois Physicians Group (UIPG).

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

Rheumatology is Huan Chang's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Huan Chang is licensed in Illinois.

CMS data shows 287 Medicare services from Huan Chang across 5 procedure codes in 2024, for 94 Medicare patients. Medicare paid $17,946 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 94 Medicare patients who saw Huan Chang in 2024. The largest group is 65 to 74, with 33 patients. 75% of them have arthritis, and 75% have high blood pressure. 74% are also on Medicaid. Their average risk score is 2.11, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Huan Chang's median patient age at 65, with 76% women.

In 2024, Huan Chang wrote 1,494 Medicare Part D claims for 160 patients. 72% of them were for generic drugs. CMS names the drug for 1,290 of them, across 29 drugs with 11 or more claims each, at $2,102,945 in total drug cost. In 2023, CMS named 978 claims across 26 drugs.

Huan Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 10 papers to Huan Chang, published from 2010 to 2023. 2022 was the busiest year, with 2. The most frequent topics are Macrophages and Arthritis, Rheumatoid. Huan Chang has published most often in JAMA. Huan Chang's most frequent co-authors are Shiva Arami, Robert Matthew Golub, MD and Pim Jetanalin, MD.

CMS Open Payments shows 23 general payments to Huan Chang from 5 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 98% of the total. Amgen Inc. paid the most, $371.

Huan Chang graduated from Geisel School of Medicine at Dartmouth in 1988.