CHRISTOPHER D TUMPKIN
Allopathic & Osteopathic Physicians|Allergy & Immunology FORT CARSON, CO NPI 1528068558
Browse related groups: Allopathic & Osteopathic Physicians|Allergy & Immunology CO GENZYME CORPORATION All categories
General Payments — all program years on this page
$4,200.24
- Category: General Payments
- Program years: PY2018–2023
- Record count: 229
- As of (CMS publication): 2026-01-23
Latest program year (PY2023): $206.87 across 8 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 |
|---|---|---|
| Food and Beverage | $206.87 | 8 |
By paying entity
Latest program year (PY2023) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| GENZYME CORPORATION | $96.83 | 3 |
| CSL Behring | $30.46 | 1 |
| Regeneron Healthcare Solutions, Inc. | $28.41 | 1 |
| Kaleo, Inc. | $20.31 | 1 |
| Amgen Inc. | $16.63 | 1 |
| Genentech USA, Inc. | $14.23 | 1 |
By program year
Records — PY2023 (8)
| Record ID | Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Source |
|---|---|---|---|---|---|---|---|
| 1013023061 | kaleo, Inc. | $20.31 | 01/25/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1019864437 | Amgen Inc. | $16.63 | 01/04/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1040329487 | Genentech USA, Inc. | $14.23 | 03/23/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1043002383 | CSL Behring | $30.46 | 01/18/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1049728217 | GENZYME CORPORATION | $35.10 | 01/19/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1049728242 | GENZYME CORPORATION | $32.43 | 02/16/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1049728255 | GENZYME CORPORATION | $29.30 | 03/13/2023 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 999503031 | Regeneron Healthcare Solutions, Inc. | $28.41 | 03/08/2023 | 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
One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.
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.