Covered recipient · General Payments record
CHRISTOPHER COLUMBUS CHAPMAN
Allopathic & Osteopathic Physicians Anesthesiology Critical Care Medicine
General Payments · PY2018–2019
$610,274.00
- Reported across 48 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
PY2019 · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Consulting Fee | $247,950.00 | 22 |
By paying entity
PY2019 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Akorn, Inc. | $247,950.00 | 22 |
By program year
All program years on this page · sorted by year
Payment records · PY2019 (22)
Sorted by paying entity, then date · as published by CMS
| Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|
| Akorn, Inc. | $12,000.00 | 01/30/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494095 | CMS |
| Akorn, Inc. | $3,600.00 | 01/31/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494173 | CMS |
| Akorn, Inc. | $6,000.00 | 02/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494179 | CMS |
| Akorn, Inc. | $14,400.00 | 02/28/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494105 | CMS |
| Akorn, Inc. | $5,700.00 | 03/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494109 | CMS |
| Akorn, Inc. | $5,700.00 | 03/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494185 | CMS |
| Akorn, Inc. | $15,000.00 | 03/28/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494115 | CMS |
| Akorn, Inc. | $5,100.00 | 04/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494119 | CMS |
| Akorn, Inc. | $18,900.00 | 04/28/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494125 | CMS |
| Akorn, Inc. | $4,500.00 | 05/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494129 | CMS |
| Akorn, Inc. | $19,200.00 | 05/28/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494133 | CMS |
| Akorn, Inc. | $3,900.00 | 06/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494137 | CMS |
| Akorn, Inc. | $12,000.00 | 06/28/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494141 | CMS |
| Akorn, Inc. | $3,300.00 | 07/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494190 | CMS |
| Akorn, Inc. | $12,600.00 | 07/28/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494147 | CMS |
| Akorn, Inc. | $3,300.00 | 08/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494195 | CMS |
| Akorn, Inc. | $15,000.00 | 08/31/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494151 | CMS |
| Akorn, Inc. | $5,100.00 | 09/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494201 | CMS |
| Akorn, Inc. | $31,200.00 | 09/30/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494155 | CMS |
| Akorn, Inc. | $26,400.00 | 10/31/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494161 | CMS |
| Akorn, Inc. | $4,950.00 | 11/02/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494165 | CMS |
| Akorn, Inc. | $20,100.00 | 11/30/2019 | Consulting Fee | Undisputed | 01/23/2026 | 697494169 | 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
- 2018, 2019
- Source files
- Dataset page · Bulk file · PY2018 , PY2019
- Generated from
- OP_DTL_GNRL_PGYR2019_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.