Dr. Brian Gisu Chang, MD

Dr. Chang practices at St. Joseph's University Medical Center in Paterson, New Jersey, part of Sisters of Charity of Saint Elizabeth.

Dr. Chang's NPI, 1659803021, was assigned on April 3, 2017. Dr. Chang graduated from American University of the Caribbean School of Medicine in 2016. Dr. Chang's Louisiana license number on file is 327837.

Dr. Chang's primary practice is St. Joseph's University Medical Center, at 703 Main St, Paterson, NJ 07503 in Passaic County. The practice phone is (973) 754-2010.

Dr. Chang's primary practice is St. Joseph's University Medical Center in Paterson, New Jersey, part of Sisters of Charity of Saint Elizabeth. Dr. Chang is also affiliated with St. Tammany Parish Hospital. The medical group on file is Barron Emergency Physicians. Dmand AI also links Dr. Chang to 2 more hospitals and 5 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 4 sites in all. Vendor and product names are available with a free account.

Emergency medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chang is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Chang's licenses on file in 4 states: Louisiana, New Jersey, New York and California.

CMS data shows 389 Medicare services from Dr. Chang across 3 procedure codes in 2024, for 368 Medicare patients. Medicare paid $49,671 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 368 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 118 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 2.26, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 43, with 56% women.

In 2024, Dr. Chang wrote 197 Medicare Part D claims for 156 patients. 97% of them were for generic drugs. CMS names the drug for 90 of them, across 4 drugs with 11 or more claims each, at $1,090 in total drug cost. In 2023, CMS named 58 claims across 3 drugs.

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

Dmand AI links 3 papers to Dr. Chang, published from 2017 to 2021. 2021 was the busiest year, with 2. Dr. Chang has published most often in Plast Reconstr Surg Glob Open. Dr. Chang's most frequent co-authors are Karen Kim Evans, MD, Patrick W. Harbour, MD and Oksana A. Jackson, MD.

CMS Open Payments shows 4 general payments to Dr. Chang from 2 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Mentor Worldwide LLC paid the most, $238.

Dr. Chang graduated from American University of the Caribbean School of Medicine in 2016.

Dr. Chang is in network with 2 carriers, including CMS Medicare and NY State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.