Covered recipient · General Payments record
CARSTEN ROBERT HAMANN
Allopathic & Osteopathic Physicians Dermatology
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General Payments · PY2023 · Entire year
$23,083.45
136 records · 0 disputed
Other CMS categories — not shown on this page
Ownership and Investment Interests
CMS also publishes Ownership and Investment Interests as a separate dataset. This site does not currently mirror it, and no ownership figure is shown on this page. This provider appears in that dataset.
Ownership and investment interests are reported as the value of an interest held, not as a payment received. They are a different measure from the payment total on this page and are never combined with it.
These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗
“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”
— Centers for Medicare & Medicaid Services, Open Payments
A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.
These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.
A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.
How these totals are calculated
- This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
- Methodology & Data — sourcing, labeling, and limitations.
Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗
By nature of payment
PY2023 · entire year · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Consulting Fee | $16,262.00 | 4 |
| Food and Beverage | $3,667.38 | 118 |
| Travel and Lodging | $3,013.08 | 12 |
| Education | $140.99 | 2 |
By paying entity
PY2023 · entire year · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $14,008.57 | 30 |
| GENZYME CORPORATION | $6,340.05 | 12 |
| Dermavant Sciences, Inc. | $480.13 | 11 |
| PFIZER INC. | $442.10 | 14 |
| Incyte Corporation | $307.88 | 7 |
| Janssen Biotech, Inc. | $288.30 | 16 |
| ABBVIE INC. | $234.77 | 15 |
| E.R. Squibb & Sons, L.L.C. | $181.17 | 9 |
| Lilly USA, LLC | $162.97 | 6 |
| Janssen Scientific Affairs, LLC | $141.66 | 1 |
| UCB, Inc. | $125.00 | 1 |
| ARGENX US, INC. | $108.02 | 1 |
| Arcutis Biotherapeutics, Inc. | $53.85 | 3 |
| Novartis Pharmaceuticals Corporation | $30.18 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $29.54 | 1 |
| Biofrontera Inc. | $29.31 | 2 |
| Kyowa Kirin, Inc. | $23.88 | 1 |
| Blueprint Medicines Corporation | $22.84 | 1 |
| Almirall LLC | $21.23 | 1 |
| Fresenius Kabi USA, LLC | $19.77 | 1 |
| LEO Pharma Inc. | $17.68 | 1 |
| Sun Pharmaceutical Industries Inc. | $14.55 | 1 |
Payment records · PY2023
Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them
General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30
136 matching records · $23,083.45 reported total · 0 disputed
Nature of payment: All payment types
Records imported here (UTC).
CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.
Showing records 1–50 of 136.
| Paying entity | Amount | Date | Nature of payment | Dispute status | Publication flags | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|---|
| PFIZER INC. | $2.88 | 12/23/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1050610767 | CMS |
| Arcutis Biotherapeutics, Inc. | $18.90 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1044667591 | CMS |
| Dermavant Sciences, Inc. | $15.73 | 12/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 991196599 | CMS |
| UCB, Inc. | $125.00 | 12/13/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1021996925 | CMS |
| ABBVIE INC. | $34.82 | 12/08/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 997423687 | CMS |
| Biofrontera Inc. | $23.40 | 12/06/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017354371 | CMS |
| Janssen Biotech, Inc. | $7.48 | 12/05/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169779 | CMS |
| Dermavant Sciences, Inc. | $4.61 | 12/03/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 991196595 | CMS |
| Dermavant Sciences, Inc. | $25.17 | 12/02/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 991196591 | CMS |
| Janssen Biotech, Inc. | $6.89 | 11/28/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169819 | CMS |
| E.R. Squibb & Sons, L.L.C. | $6.03 | 11/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1014920913 | CMS |
| Dermavant Sciences, Inc. | $10.17 | 11/18/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 991196587 | CMS |
| GENZYME CORPORATION | $6.49 | 11/15/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1049774882 | CMS |
| ABBVIE INC. | $19.71 | 11/14/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 997423685 | CMS |
| Regeneron Healthcare Solutions, Inc. | $309.62 | 11/12/2023 | Travel and Lodging | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201937 | CMS |
| Regeneron Healthcare Solutions, Inc. | $65.15 | 11/12/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201940 | CMS |
| Regeneron Healthcare Solutions, Inc. | $42.00 | 11/12/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201944 | CMS |
| Regeneron Healthcare Solutions, Inc. | $74.15 | 11/12/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201949 | CMS |
| Regeneron Healthcare Solutions, Inc. | $22.25 | 11/12/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201953 | CMS |
| Regeneron Healthcare Solutions, Inc. | $149.66 | 11/10/2023 | Travel and Lodging | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201929 | CMS |
| Regeneron Healthcare Solutions, Inc. | $159.66 | 11/10/2023 | Travel and Lodging | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201933 | CMS |
| Janssen Biotech, Inc. | $6.09 | 11/09/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169847 | CMS |
| Regeneron Healthcare Solutions, Inc. | $7.84 | 11/08/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201925 | CMS |
| Regeneron Healthcare Solutions, Inc. | $722.80 | 11/01/2023 | Travel and Lodging | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201917 | CMS |
| Regeneron Healthcare Solutions, Inc. | $35.25 | 11/01/2023 | Travel and Lodging | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201921 | CMS |
| GENZYME CORPORATION | $121.21 | 10/30/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1049774907 | CMS |
| ABBVIE INC. | $18.15 | 10/27/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 997423683 | CMS |
| Janssen Biotech, Inc. | $7.08 | 10/24/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169877 | CMS |
| PFIZER INC. | $20.20 | 10/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1049408785 | CMS |
| Incyte Corporation | $84.56 | 10/18/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1044529725 | CMS |
| ABBVIE INC. | $10.34 | 10/17/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 997423681 | CMS |
| Janssen Biotech, Inc. | $72.00 | 10/13/2023 | Education | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169769 | CMS |
| Regeneron Healthcare Solutions, Inc. | $4,872.00 | 10/10/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201905 | CMS |
| Regeneron Healthcare Solutions, Inc. | $4,872.00 | 10/10/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201909 | CMS |
| Regeneron Healthcare Solutions, Inc. | $812.00 | 10/10/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 999201913 | CMS |
| GENZYME CORPORATION | $6.99 | 10/04/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1049774871 | CMS |
| E.R. Squibb & Sons, L.L.C. | $14.41 | 10/03/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1014920859 | CMS |
| Janssen Biotech, Inc. | $22.30 | 09/30/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169799 | CMS |
| Janssen Biotech, Inc. | $9.40 | 09/28/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169789 | CMS |
| Lilly USA, LLC | $32.20 | 09/28/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1031303045 | CMS |
| Incyte Corporation | $6.49 | 09/26/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1044529675 | CMS |
| ABBVIE INC. | $23.02 | 09/22/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 997423677 | CMS |
| ABBVIE INC. | $6.62 | 09/22/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 997423679 | CMS |
| Dermavant Sciences, Inc. | $133.34 | 09/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 991196583 | CMS |
| Janssen Biotech, Inc. | $6.20 | 09/12/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169827 | CMS |
| Blueprint Medicines Corporation | $22.84 | 09/11/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1051283747 | CMS |
| E.R. Squibb & Sons, L.L.C. | $6.18 | 09/11/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1014920763 | CMS |
| Janssen Biotech, Inc. | $20.53 | 08/31/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169867 | CMS |
| Janssen Biotech, Inc. | $21.71 | 08/30/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 988169839 | CMS |
| Lilly USA, LLC | $32.34 | 08/24/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1031289823 | CMS |
By program year
All program years on this page · sorted by year
Source & provenance
- Dataset
- CMS Open Payments — General Payments
- Publisher of source data
- Centers for Medicare & Medicaid Services
- CMS publication date
- 2026-06-30
- Program years on this page
- 2021, 2022, 2023, 2024, 2025
Source files and profile matching
- Generated from
- OP_DTL_GNRL_PGYR2025_P06302026_06032026.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.
Cite this record.
Permalink https://industrypayments.org/provider/npi-1538546957
- Plain
- CARSTEN ROBERT HAMANN, NPI 1538546957. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1538546957.
- APA 7
- IndustryPayments. (2026). CARSTEN ROBERT HAMANN, NPI 1538546957 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1538546957
- Bluebook
- CARSTEN ROBERT HAMANN, NPI 1538546957, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1538546957.
Source: Centers for Medicare & Medicaid Services, Open Payments.