Covered recipient · General Payments record
TIANZAN ZHOU
Allopathic & Osteopathic Physicians Neurological Surgery
General Payments · PY2021–2024
$11,756.73
- Reported across 81 records
- CMS publication 2026-01-23
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How these totals are 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
PY2024 · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Travel and Lodging | $3,260.47 | 13 |
| Food and Beverage | $1,483.99 | 14 |
By paying entity
PY2024 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Penumbra, Inc. | $3,404.44 | 18 |
| Balt USA, LLC | $1,080.78 | 6 |
| DePuy Synthes Sales Inc. | $134.34 | 2 |
| Stryker Corporation | $124.90 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2024 (27)
Sorted by paying entity, then date · as published by CMS
Program year 2024 202120222023
Record-level detail is published for PY2024; earlier years are summarised in
“By program year”.
| Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|
| Balt USA, LLC | $189.48 | 04/04/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1154347771 | CMS |
| Balt USA, LLC | $41.97 | 04/05/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1154346321 | CMS |
| Balt USA, LLC | $299.19 | 04/05/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1154347927 | CMS |
| Balt USA, LLC | $458.24 | 04/05/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1154347978 | CMS |
| Balt USA, LLC | $45.02 | 04/11/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1154346371 | CMS |
| Balt USA, LLC | $46.88 | 04/11/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1154346413 | CMS |
| DePuy Synthes Sales Inc. | $106.85 | 01/12/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1077807679 | CMS |
| DePuy Synthes Sales Inc. | $27.49 | 05/01/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1077807635 | CMS |
| Penumbra, Inc. | $670.88 | 01/26/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076228438 | CMS |
| Penumbra, Inc. | $396.19 | 01/26/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1076228954 | CMS |
| Penumbra, Inc. | $86.97 | 01/26/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076229492 | CMS |
| Penumbra, Inc. | $82.51 | 01/26/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076229494 | CMS |
| Penumbra, Inc. | $413.20 | 03/18/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076220682 | CMS |
| Penumbra, Inc. | $32.00 | 03/18/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076220684 | CMS |
| Penumbra, Inc. | $55.44 | 03/21/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1076220686 | CMS |
| Penumbra, Inc. | $413.20 | 04/29/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076232696 | CMS |
| Penumbra, Inc. | $458.53 | 04/30/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076220688 | CMS |
| Penumbra, Inc. | $125.98 | 04/30/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1076220690 | CMS |
| Penumbra, Inc. | $45.36 | 04/30/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1095788611 | CMS |
| Penumbra, Inc. | $116.41 | 05/01/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1076220692 | CMS |
| Penumbra, Inc. | $22.50 | 05/01/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1076220694 | CMS |
| Penumbra, Inc. | $132.40 | 05/01/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076220696 | CMS |
| Penumbra, Inc. | $126.02 | 05/02/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1076220698 | CMS |
| Penumbra, Inc. | $36.13 | 05/03/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1076220700 | CMS |
| Penumbra, Inc. | $65.72 | 06/04/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1076220702 | CMS |
| Penumbra, Inc. | $125.00 | 07/29/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1076220704 | CMS |
| Stryker Corporation | $124.90 | 07/04/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1120024608 | CMS |
Source & provenance
- Dataset
- CMS Open Payments — General Payments
- Publisher of source data
- Centers for Medicare & Medicaid Services
- CMS publication date
- 2026-01-23
- Program years on this page
- 2021, 2022, 2023, 2024
- Generated from
- OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
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