Kent Walker, MD
Dermatology · Ottumwa, IANPI 1376519033
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,168 of the $1,594 with a category attached, or 73.3%. 13 manufacturers reported payments, led by Johnson & Johnson at 33.1% of the total. 2025 is the largest year on record at $481, 3.3 times the $144 reported in 2019.
Across 66 payments — averaging $24.15 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$528
- AbbVie$348
- Novartis$248
- UCB, Inc.$164
- Amgen$55
- Lilly USA, LLC$45
- plus $206 from 7 others
What the payments were for
- Food & beverage$1,16873%
- Education$42627%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Johnson & Johnson | 14 | $528 |
| AbbVie | 19 | $348 |
| Novartis | 11 | $248 |
| UCB, Inc. | 7 | $164 |
| Amgen | 2 | $55 |
| Lilly USA, LLC | 2 | $45 |
| Sun Pharmaceutical Industries Inc. | 3 | $44 |
| Sanofi | 2 | $44 |
| Pfizer | 2 | $31 |
| Organogenesis Inc. | 1 | $25 |
| Boehringer Ingelheim | 1 | $25 |
| Regeneron Healthcare Solutions, Inc. | 1 | $24 |
| Biofrontera Inc. | 1 | $12 |
How this compares
$1,594 in reported general payments places this provider in the 65th percentile of 92 dermatology providers in Iowa.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Dupixent PenDupilumab | 14 | $53,522 |
| Ivermectin | 12 | $3,152 |
| Fluorouracil | 27 | $2,518 |
| Dapsone | 25 | $2,103 |
| ValacyclovirValacyclovir Hcl | 46 | $2,016 |
| Azelaic Acid | 13 | $1,563 |
| Ketoconazole | 74 | $1,451 |
| Clobetasol Propionate | 25 | $1,253 |
| Hydroxychloroquine Sulfate | 31 | $1,210 |
| Metronidazole | 27 | $1,062 |
| Mometasone Furoate | 43 | $1,021 |
| Doxycycline Hyclate | 33 | $768 |
| Doxycycline Monohydrate | 36 | $688 |
| Pentoxifylline | 28 | $615 |
| Imiquimod | 16 | $471 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Ottumwa
- Roger CeilleyWest Des Moines$82K
- David KnutsonCedar Rapids$60K
- Scott GreenFort Dodge$56K
- Timothy AbrahamsonUrbandale$49K
- Ali JabbariIowa City$38K
- Ravindrakumar GangadhariahDavenport$20K
- Somaira NowsheenWaukee$15K
- Laura MyersAnkeny$7K
- Katrina SmithAnkeny$7K
- Kirsten DickinsonClive$6K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.