Kenneth Mankowski
Neurology · Columbus, OHNPI 1942261243
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $1,077,367 of the $1,406,406 with a category attached, or 76.6%. 36 manufacturers reported payments, led by Biogen at 40.0% of the total. Reporting peaked in 2023 at $315,815 and has fallen 58.3% since, to $131,737 in 2025. Among neurology clinicians in OH with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 1,486 payments — averaging $946.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Biogen$562K
- EMD Serono, Inc.$415K
- TG Therapeutics, Inc.$207K
- Sanofi$108K
- Genentech USA, Inc.$51K
- Amgen$31K
- plus $32K from 30 others
Across 65 payments — averaging $2425.91 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Adamas Pharmaceuticals, Inc.$100K
- Biogen$37K
- Roche Products Limited$11K
- EMD Serono, Inc.$9K
- Mallinckrodt Hospital Products Inc.$1K
What the payments were for
- Consulting fees$98,2197%
- Speaking & faculty fees$1,077,36777%
- Travel & lodging$190,45114%
- Food & beverage$40,0043%
- Education$3650%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Biogen | 559 | $562,392 |
| EMD Serono, Inc. | 479 | $414,504 |
| TG Therapeutics, Inc. | 143 | $207,401 |
| Sanofi | 128 | $108,242 |
| Genentech USA, Inc. | 45 | $50,704 |
| Amgen(2 entities) | 52 | $31,143 |
| Novartis | 26 | $7,419 |
| Cardinal Health 110 LLC | 4 | $6,806 |
| Sandoz | 1 | $5,875 |
| Banner Life Sciences, LLC | 2 | $5,310 |
| Ares Trading SA | 1 | $2,780 |
| Bristol Myers Squibb | 6 | $2,481 |
| Genentech, Inc. | 8 | $305 |
| AbbVie | 4 | $179 |
| Lilly USA, LLC | 1 | $103 |
| Procept Biorobotics Corporation | 2 | $103 |
| Mallinckrodt Hospital Products Inc. | 1 | $102 |
| Sanofi-aventis U.S. LLC | 1 | $91 |
| Cardinal Health Inc | 2 | $91 |
| Acorda Therapeutics, Inc | 3 | $50 |
| Acadia Pharmaceuticals Inc | 3 | $48 |
| ANI Pharmaceuticals, Inc. | 1 | $46 |
| Mallinckrodt Enterprises LLC | 1 | $24 |
| Akcea Therapeutics, Inc. | 1 | $22 |
| Alnylam Pharmaceuticals Inc. | 1 | $21 |
| Greenwich Biosciences, Inc. | 1 | $21 |
| SK Life Science, Inc. | 1 | $20 |
| MDD US Operations, LLC | 1 | $19 |
| Kyowa Kirin, Inc. | 1 | $16 |
| Tanabe Pharma America, Inc. | 1 | $16 |
| Jazz Pharmaceuticals Inc. | 1 | $14 |
| Avanir Pharmaceuticals, Inc. | 1 | $13 |
| Vertical Pharmaceuticals, LLC | 1 | $12 |
| Zyla Life Sciences, Inc. | 1 | $12 |
| AstraZeneca | 1 | $12 |
| Adamas Pharmaceuticals, Inc. | 1 | $11 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$1,406,406 in reported general payments places this provider in the 95th percentile of 702 neurology providers in Ohio.
Other neurology in Columbus
- Aaron BosterColumbus$1.2M
- Jacqueline NicholasColumbus$743K
- Geoffrey EubankColumbus$508K
- Jerry MendellColumbus$315K
- Andrew SmithColumbus$254K
- Douglas ScharreColumbus$191K
- Aristide MerolaColumbus$133K
- Miriam FreimerColumbus$105K
- Allison JordanColumbus$98K
- Aram ZabetiCincinnati$1.6M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.