NATHAN T ZWAGERMAN
Allopathic & Osteopathic Physicians|Neurological Surgery MILWAUKEE, WI NPI 1689970543
Browse related groups: Allopathic & Osteopathic Physicians|Neurological Surgery WI Stryker Corporation All categories
General Payments — all program years on this page
$1,323.90
- Category: General Payments
- Program years: PY2022–2023
- Record count: 6
- As of (CMS publication): 2026-01-23
Latest program year (PY2023): $687.28 across 4 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
- General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
Latest program year (PY2023) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Travel and Lodging | $415.81 | 1 |
| Food and Beverage | $271.47 | 3 |
By paying entity
Latest program year (PY2023) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Stryker Corporation | $687.28 | 4 |
By program year
Records — PY2023 (4)
| Record ID | Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Source |
|---|---|---|---|---|---|---|---|
| 1007196175 | Stryker Corporation | $54.96 | 02/24/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1007196183 | Stryker Corporation | $415.81 | 02/24/2023 | Travel and Lodging | Undisputed | 01/23/2026 | View at CMS |
| 1007196187 | Stryker Corporation | $48.86 | 02/24/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1007196191 | Stryker Corporation | $167.65 | 03/10/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2023_P01232026_01102026.csv
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Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.