Donald Weaver, MD
Pediatric Nephrology · Charlotte, NCNPI 1386851491
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $7,013 of the $7,613 with a category attached, or 92.1%. AstraZeneca accounts for 99.8% of it on its own, with 1 other manufacturer making up the rest. Reporting peaked in 2020 at $7,027 and has fallen 99.7% since, to $20 in 2024.
Across 15 payments — averaging $507.56 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$8K
- Masimo Corporation$12
Across 37 payments — averaging $3047.35 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.
- AstraZeneca$66K
- Rockwell Medical, Inc.$28K
- AbbVie$18K
What the payments were for
- Speaking & faculty fees$7,01392%
- Travel & lodging$4676%
- Food & beverage$1342%
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 |
|---|---|---|
| AstraZeneca | 14 | $7,602 |
| Masimo Corporation | 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.
- ULTOMIRIS$2,738
How this compares
$7,613 in reported general payments places this provider in the 75th percentile of 20 pediatric nephrology providers in North Carolina.
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 |
|---|---|---|
| Prednisone | 14 | $14 |
Paid to pharmacies, not to this prescriber.
Other pediatric nephrology in Charlotte
- Charles McKayCharlotte$134K
- Susan MassengillCharlotte$10K
- Annabelle ChuaCharlotte$1K
- Hailey GaviganCharlotte$46
- Keisha GibsonChapel Hill$17K
- Shashi NagarajDurham$8K
- Eileen ChambersDurham$2K
- Hostensia BengGreenville$1K
- Carol VincentWinston Salem$549
- John ForemanDurham$211
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.