Dr. Sean C. Halligan, MD

Dr. Halligan practices at Avera Heart Hospital in Sioux Falls, South Dakota, part of Avera Health.

Dr. Halligan's NPI, 1174504658, was assigned on November 10, 2005. Dr. Halligan graduated from University of Nebraska College of Medicine in 1997. Dr. Halligan holds South Dakota license 5802.

Dr. Halligan's primary practice is Avera Heart Hospital, at 4500 W 69th St, Sioux Falls, SD 57108 in Lincoln County. The practice phone is (605) 977-7000.

Dr. Halligan's primary practice is Avera Heart Hospital in Sioux Falls, South Dakota, part of Avera Health. Dr. Halligan is also affiliated with Avera McKennan Hospital & University Health Center. The medical group on file is Avera McKennan Hospital & University Health Center. Dmand AI also links Dr. Halligan to 3 more hospitals, 7 medical groups and 3 group practices and clinics, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Halligan practices, 8 sites in all. Vendor and product names are available with a free account.

Interventional cardiology is Dr. Halligan's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dmand AI has Dr. Halligan's licenses on file in 2 states: South Dakota and Wisconsin.

CMS data shows 1,710 Medicare services from Dr. Halligan across 22 procedure codes in 2024, for 1,008 Medicare patients. Medicare paid $93,961 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 1,008 Medicare patients who saw Dr. Halligan in 2024. The largest group is 65 to 74, with 430 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Halligan's median patient age at 69, with 45% women.

In 2024, Dr. Halligan wrote 2,237 Medicare Part D claims for 365 patients. 92% of them were for generic drugs. CMS names the drug for 2,102 of them, across 27 drugs with 11 or more claims each, at $114,985 in total drug cost. In 2023, CMS named 1,288 claims across 23 drugs.

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

Coronary angioplasty and stenting: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 1 paper to Dr. Halligan. Dr. Halligan's most frequent co-authors are Khaldoon Alaswad, MD, Raymond H. Allen, MD and Subhash Banerjee, MD.

CMS Open Payments shows 329 general payments to Dr. Halligan from 14 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 48% of the total. Abbott Laboratories paid the most, $45,206.

Dr. Halligan graduated from University of Nebraska College of Medicine in 1997.