Dr. Cian McCarthy, MD

Dr. McCarthy practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. McCarthy's NPI, 1275988750, was assigned on May 3, 2016. Dr. McCarthy holds Massachusetts license 290288.

Dr. McCarthy's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.

Dr. McCarthy's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. McCarthy is also affiliated with Newton-Wellesley Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. McCarthy to 1 more hospital, 2 group practices and clinics, 1 community health center and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McCarthy practices, 6 sites in all. Vendor and product names are available with a free account.

Cardiovascular disease is Dr. McCarthy's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. McCarthy is licensed in Massachusetts.

CMS data shows 71 Medicare services from Dr. McCarthy across 4 procedure codes in 2024, for 70 Medicare patients. Medicare paid $7,068 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 70 Medicare patients who saw Dr. McCarthy in 2024. The largest group is 65 to 74, with 27 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 2.33, 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. McCarthy's median patient age at 61, with 32% women.

In 2022, Dr. McCarthy wrote 110 Medicare Part D claims. They cover 5 drugs, with $28,471 in total drug cost. In 2021, CMS named 95 claims across 5 drugs.

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

Dmand AI links 113 papers to Dr. McCarthy, published from 2015 to 2025. 2018 was the busiest year, with 17. The most frequent topics are Myocardial Infarction, Cardiovascular Diseases and Acute Coronary Syndrome. Dr. McCarthy has published most often in J Am Coll Cardiol. Dr. McCarthy's most frequent co-authors are James Louis Januzzi, MD, Muthiah Vaduganathan, MD, MPH and Hanna Kim Gaggin, MD, MPH.

CMS Open Payments shows 47 general payments to Dr. McCarthy from 7 drug and device companies from 2021 to 2025. Consulting fees make up the largest share, 82% of the total. Alnylam Pharmaceuticals Inc. paid the most, $11,765.