GREGG SEAN HALLMAN
Allopathic & Osteopathic Physicians|Urology CAPE GIRARDEAU, MO NPI 1891735890
Browse related groups: Allopathic & Osteopathic Physicians|Urology MO PFIZER INC. All categories
General Payments — all program years on this page
$7,741.46
- Category: General Payments
- Program years: PY2018–2024
- Record count: 348
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $620.91 across 31 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 (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $620.91 | 31 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| PFIZER INC. | $84.77 | 4 |
| UROGEN PHARMA, INC. | $77.79 | 3 |
| ABBVIE INC. | $70.46 | 4 |
| Janssen Biotech, Inc. | $68.70 | 4 |
| Acerta Pharma LLC | $47.20 | 2 |
| SUN PHARMACEUTICAL INDUSTRIES INC. | $38.33 | 2 |
| Astellas Pharma US Inc | $36.84 | 2 |
| INTUITIVE SURGICAL, INC. | $28.00 | 1 |
| Amgen Inc. | $26.47 | 1 |
| BOSTON SCIENTIFIC CORPORATION | $22.65 | 1 |
| Axonics Modulation Technologies, Inc. | $20.90 | 1 |
| Bayer HealthCare Pharmaceuticals Inc. | $18.94 | 1 |
| Dendreon Pharmaceuticals LLC | $17.32 | 1 |
| Ferring Pharmaceuticals Inc. | $16.54 | 1 |
| Merck Sharp & Dohme Corporation | $15.87 | 1 |
| Sumitomo Pharma America, Inc. | $15.36 | 1 |
| Laborie Medical Technologies Corp. | $14.77 | 1 |
By program year
Records — PY2024 (31)
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_PGYR2024_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.