Dr. Ian Cheng-Yi Chang, MD

Dr. Chang practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.

Dr. Chang's NPI, 1538451802, was assigned on May 5, 2011. Dr. Chang graduated from National Yang Ming University Medical College in 2009. Dr. Chang holds Minnesota license 57185.

Dr. Chang's primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.

Dr. Chang's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dr. Chang is also affiliated with MedStar Washington Hospital Center. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Chang to 4 more medical groups, 1 group practice or clinic and 1 hospice, 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.

Cardiovascular disease is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Chang is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Chang's licenses on file in 4 states: Minnesota, District of Columbia, Iowa and Maryland.

Dmand AI lists atrial fibrillation and flutter, cardiac catheterization, cerebrovascular disease, chronic hypertension, circulation problems, congestive heart failure, coronary artery disease and heart attack among the conditions Dr. Chang treats.

CMS data shows 827 Medicare services from Dr. Chang across 15 procedure codes in 2024, for 510 Medicare patients. Medicare paid $36,882 for them.

CMS counts 510 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 238 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.87, 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 72, with 39% women.

In 2024, Dr. Chang wrote 445 Medicare Part D claims for 58 patients. 32% of them were for generic drugs. CMS names the drug for 400 of them, across 10 drugs with 11 or more claims each, at $4,378,587 in total drug cost. In 2023, CMS named 78 claims across 4 drugs.

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

Dmand AI links 26 papers to Dr. Chang, published from 2011 to 2025. 2021 was the busiest year, with 4. The most frequent topics are Amyloidosis, Atrial Fibrillation and Echocardiography. Dr. Chang has published most often in Amyloid. Dr. Chang's most frequent co-authors are Martha Grogan, MD, Angela Dispenzieri, MD and John P. Bois, MD.

Dr. Chang graduated from National Yang Ming University Medical College in 2009. Dr. Chang is a member of ACC, ISA and SCMR.

Dr. Chang is in network with 19 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 12. Check the plan with the practice before a visit.