Dr. Joseph C. Hannan, MD

Dr. Hannan practices at Saint Vincent Hospital in Worcester, Massachusetts, part of Tenet Healthcare.

Dr. Hannan's NPI, 1275513822, was assigned on January 19, 2006. Dr. Hannan graduated from State University of New York Downstate Medical Center in 1988. Dr. Hannan holds Massachusetts license 205941.

Dr. Hannan's primary practice is Saint Vincent Hospital, at 123 Summer Street, Worcester, MA 01608 in Worcester County. The practice phone is (508) 363-5000.

Dr. Hannan's primary practice is Saint Vincent Hospital in Worcester, Massachusetts, part of Tenet Healthcare. Dr. Hannan is also affiliated with UMass Memorial Health - Harrington Hospital. The medical group on file is Reliant Medical Group. Dmand AI also links Dr. Hannan to 1 more hospital and 1 hospital outpatient department, each named with a free account.

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

Interventional cardiology is Dr. Hannan's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Hannan is licensed in Massachusetts.

CMS data shows 1,308 Medicare services from Dr. Hannan across 23 procedure codes in 2024, for 423 Medicare patients. Medicare paid $155,875 for them.

CMS counts 423 Medicare patients who saw Dr. Hannan in 2024. The largest group is 65 to 74, with 170 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.92, 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. Hannan's median patient age at 76, with 39% women.

In 2024, Dr. Hannan wrote 2,900 Medicare Part D claims for 434 patients. 82% of them were for generic drugs. CMS names the drug for 2,756 of them, across 28 drugs with 11 or more claims each, at $443,306 in total drug cost. In 2023, CMS named 2,532 claims across 29 drugs.

Dr. Hannan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hannan as offering telehealth. CMS counts 34 procedures of coronary angioplasty and stenting by Dr. Hannan, more than 71% of the clinicians it reports for that procedure.

Pacemaker insertion or repair: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 117 general payments to Dr. Hannan from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 65% of the total. Abbott Laboratories paid the most, $1,887.

Dr. Hannan graduated from State University of New York Downstate Medical Center in 1988.