Ionis Pharmaceuticals, INC.

Reporting payments is a legal requirement; large totals often reflect large product portfolios.

$3.3Mgeneral payments (2019-2025)
$29Kresearch payments (2019-2025)
2,934clinicians paid

General and research payments are shown separately, never blended. Research payments are often institution-directed and tied to clinical trials.

General payments by year

2025 $3.3M

General payments only, as reported to CMS. Research payments are totaled above and not included in these bars.

Products most associated with its payments

Specialties it works with most

Cardiovascular Disease $1.1M
Internal Medicine $997K
Allergy & Immunology $482K
Neurology With Special Qualifications In Child Neurology $132K
Allergy & Immunology (Internal Medicine) $101K
Endocrinology, Diabetes & Metabolism $86K

Clinicians with the largest reported totals

Often long-running consulting, speaking, or advisory relationships, which companies must report by law. A large total is not evidence of anything improper.

ClinicianLocationSpecialtyGeneral payments (2019-2025)
Joseph Loscalzo Boston, MA Cardiovascular Disease $903,928.88
Spencer Berthelsen Sugar Land, TX Internal Medicine $891,083.14
Raffi Tachdjian Santa Monica, CA Allergy & Immunology $111,241.59
Benjamin Philpott Rocky Mount, VA Family Medicine $64,160.00
Joseph Gleeson San Diego, CA Neurology With Special Qualifications In Child Neurology $60,025.00
Seth Baum Boca Raton, FL Cardiovascular Disease $55,751.88
Jon Ruckle Tacoma, WA Internal Medicine $54,705.00
H James Wedner Saint Louis, MO Allergy & Immunology (Internal Medicine) $33,617.79
Autumn Burnette Washington, DC Allergy & Immunology (Internal Medicine) $30,996.14
Michael Rafii La Jolla, CA Neurology (Psychiatry & Neurology) $25,920.00

Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.