Donna Claes, MD
Pediatric Nephrology · Kansas City, MONPI 1073704797
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $770 of the $1,245 with a category attached, or 61.8%. Amgen accounts for 97.5% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2019 at $1,078 and has fallen 86.3% since, to $148 in 2024. That places this record below the midpoint for pediatric nephrology clinicians in MO, where the typical reported total is $1,245.
Across 11 payments — averaging $113.17 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$1K
- Covidien LP$18
- Outset Medical Inc$12
Across 32 payments — averaging $8611.12 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.
- Bayer$134K
- AstraZeneca$89K
- Amgen$51K
- Covidien LP$1K
What the payments were for
- Travel & lodging$77062%
- Food & beverage$47538%
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 |
|---|---|---|
| Amgen | 9 | $1,214 |
| Covidien LP | 1 | $18 |
| Outset Medical Inc | 1 | $12 |
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.
- KRYSTEXXA$148
How this compares
$1,245 in reported general payments places this provider in the 50th percentile of 26 pediatric nephrology providers in Missouri.
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 |
|---|---|---|
| Losartan Potassium | 12 | $22 |
Paid to pharmacies, not to this prescriber.
Other pediatric nephrology in Kansas City
- Bradley WaradyKansas City$61K
- Tarak SrivastavaKansas City$28K
- Uri AlonKansas City$22K
- Judith VansickleKansas City$18K
- Laurel WilligKansas City$17K
- Vimal ChadhaKansas City$2K
- Heather MorgansKansas City$2K
- Darcy WeidemannKansas City$259
- Naile Tufan PekkucuksenKansas City$48
- Nathan BeinsKansas City$22
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.