Matthew Weinger, MD
Anesthesiology · Nashville, TNNPI 1477640597
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $50,560 of the $53,905 with a category attached, or 93.8%. Every reported general payment came from a single manufacturer, Fresenius Kabi USA, LLC. 2025 is the largest year on record at $42,167, more than ten times the $3,173 reported in 2022. Among anesthesiology clinicians in TN 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 40 payments — averaging $1347.63 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Fresenius Kabi USA, LLC$54K
Across 3 payments — averaging $34,961 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.
- Merck$105K
What the payments were for
- Consulting fees$50,56094%
- Travel & lodging$2,9405%
- Food & beverage$4051%
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 |
|---|---|---|
| Fresenius Kabi USA, LLC | 40 | $53,905 |
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.
- Ivenix Infusion System$53,497
How this compares
$53,905 in reported general payments places this provider in the 95th percentile of 772 anesthesiology providers in Tennessee.
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 anesthesiology in Nashville
- Jeffery BalserNashville$952K
- Michael StabileNashville$37K
- Adam KingeterNashville$13K
- Bryan MarascalchiNashville$8K
- Huong leNashville$7K
- Warren SandbergNashville$5K
- Benjamin MacdougallNashville$3K
- William ChangNashville$3K
- Bantayehu SileshiNashville$3K
- Truitt EllisNashville$3K
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.