William Oneill, MD
Nephrology · Atlanta, GANPI 1215049648
Payments from drug & device makers
What this record shows
Abiomed accounts for 81.8% of it on its own, with 1 other manufacturer making up the rest. That places this record below the midpoint for nephrology clinicians in GA, where the typical reported total is $1,554.
Across 7 payments — averaging $78.57 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abiomed$450
- Mallinckrodt Hospital Products Inc.$100
Across 4 payments — averaging $70,040 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.
- Fresenius USA Marketing, Inc.$280K
What the payments were for
- Travel & lodging$31157%
- Food & beverage$23943%
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 |
|---|---|---|
| Abiomed | 6 | $450 |
| Mallinckrodt Hospital Products Inc. | 1 | $100 |
How this compares
$550 in reported general payments places this provider in the 30th percentile of 388 nephrology providers in Georgia.
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.
Other nephrology in Atlanta
- Sheldon ShoreAtlanta$474K
- Christina KleinAtlanta$137K
- Mary MuonekeAtlanta$119K
- Frederic Rahbari OskouiAtlanta$88K
- Tarik LalwaniAtlanta$69K
- Haimanot WasseAtlanta$60K
- Janice LeaAtlanta$21K
- Vandana NiyyarAtlanta$11K
- Gautham ViswanathanAtlanta$10K
- Lara WatkinsAtlanta$8K
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.