Mathew Lonberg, MD
Hematology · Nyack, NYNPI 1235186065
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $6,967 of the $7,910 with a category attached, or 88.1%. It is spread thinly across 52 manufacturers, the largest accounting for just 12.7% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $3,197 and has fallen 70.2% since, to $952 in 2025.
Across 416 payments — averaging $19.01 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$1K
- Johnson & Johnson$750
- Pfizer$633
- E.r. Squibb & Sons, L.L.C.$599
- AstraZeneca$472
- Amgen$409
- plus $4K from 46 others
Across 5 payments — averaging $5194.08 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Helsinn Healthcare SA$16K
- E.r. Squibb & Sons, L.L.C.$10K
What the payments were for
- Food & beverage$6,96788%
- Education$94312%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- NUWIQ$103
How this compares
$7,910 in reported general payments places this provider in the 75th percentile of 157 hematology providers in New York.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ImbruvicaIbrutinib | 47 | $695,213 |
| PomalystPomalidomide | 38 | $662,224 |
| RevlimidLenalidomide | 44 | $584,543 |
| JakafiRuxolitinib Phosphate | 28 | $475,147 |
| CalquenceAcalabrutinib Maleate | 30 | $332,798 |
| VenclextaVenetoclax | 27 | $191,593 |
| XtandiEnzalutamide | 12 | $147,484 |
| PegasysPeginterferon Alfa-2a | 33 | $137,311 |
| LumakrasSotorasib | 12 | $129,227 |
| EliquisApixaban | 130 | $106,339 |
| CotellicCobimetinib Fumarate | 13 | $43,714 |
| Imatinib Mesylate | 13 | $39,158 |
| XareltoRivaroxaban | 33 | $32,373 |
| Exemestane | 16 | $2,735 |
| Anastrozole | 59 | $846 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Pharmacyclics LLC, An Abbvie CompanyImbruvica | $160 | $695,21347 claims |
| E.r. Squibb & Sons, L.L.C.Pomalyst | $599 | $662,22438 claims |
| Bristol Myers SquibbRevlimid | $158 | $584,54344 claims |
| Incyte CorporationJakafi | $78 | $475,14728 claims |
| AstraZenecaCalquence | $472 | $332,79830 claims |
| AbbVieVenclexta | $143 | $191,59327 claims |
| Astellas Pharma US IncXtandi | $56 | $147,48412 claims |
| AmgenLumakras | $409 | $129,22712 claims |
| PfizerEliquis | $633 | $106,339130 claims |
| Johnson & JohnsonXarelto | $750 | $32,37333 claims |
| Teva Pharmaceuticals USA, Inc.Acyclovir | $69 | $17128 claims |
| Lilly USA, LLCOlanzapine | $88 | $6613 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 75th percentile of 157 hematology providers in New York.
Other hematology in Nyack
- Bradley CohenNyack$9K
- Barry CollerNew York$7.9M
- Allyson OceanNew York$1.4M
- Ahmed SawasNew York$618K
- Jeffrey ZwickerNew York$561K
- Dan DouerNew York$477K
- Ran ReshefNew York$468K
- Faith DaviesNew York$307K
- Michael MauroNew York$229K
- Richard FurmanNew York$208K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.