Carl Chakmakjian, DO
Medical Oncology · Waco, TXNPI 1285675306
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $219,537 of the $272,593 with a category attached, or 80.5%. E.r. Squibb & Sons, L.L.C. accounts for 97.4% of it on its own, with 42 other manufacturers making up the rest. Among medical oncology clinicians in TX with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 294 payments — averaging $927.19 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- E.r. Squibb & Sons, L.L.C.$266K
- Novartis$4K
- Bristol Myers Squibb$654
- Johnson & Johnson$268
- Merck$256
- AstraZeneca$197
- plus $2K from 37 others
Across 131 payments — averaging $4653.22 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.
- Eli Lilly$353K
- E.r. Squibb & Sons, L.L.C.$116K
- GSK$62K
- Seagen Inc.$45K
- AstraZeneca$21K
- Janssen Research & Development, LLC$8K
- plus $5K from 3 others
What the payments were for
- Consulting fees$24,6249%
- Speaking & faculty fees$219,53781%
- Travel & lodging$23,2079%
- Food & beverage$5,0752%
- Education$1500%
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.
How this compares
$272,593 in reported general payments places this provider in the 90th percentile of 495 medical oncology providers in Texas.
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 |
|---|---|---|
| RevlimidLenalidomide | 52 | $837,846 |
| TibsovoIvosidenib | 11 | $364,826 |
| CalquenceAcalabrutinib Maleate | 24 | $349,727 |
| VerzenioAbemaciclib | 20 | $297,786 |
| BrukinsaZanubrutinib | 28 | $267,297 |
| TagrissoOsimertinib Mesylate | 15 | $231,916 |
| AlecensaAlectinib Hcl | 12 | $229,141 |
| JakafiRuxolitinib Phosphate | 12 | $211,918 |
| Lenalidomide | 19 | $184,839 |
| IbrancePalbociclib | 14 | $141,412 |
| Abiraterone Acetate | 24 | $117,204 |
| PomalystPomalidomide | 11 | $116,972 |
| EliquisApixaban | 116 | $85,404 |
| XareltoRivaroxaban | 14 | $10,882 |
| Xtampza ErOxycodone Myristate | 11 | $5,654 |
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 |
|---|---|---|
| Bristol Myers SquibbRevlimid | $654 | $837,84652 claims |
| AstraZenecaCalquence, Tagrisso | $197 | $581,64339 claims |
| Lilly USA, LLCVerzenio, Olanzapine | $77 | $297,88342 claims |
| Beigene USA, Inc.Brukinsa | $16 | $267,29728 claims |
| PfizerIbrance, Eliquis | $116 | $226,816130 claims |
| Incyte CorporationJakafi | $183 | $211,91812 claims |
| E.r. Squibb & Sons, L.L.C.Pomalyst | $265,562 | $116,97211 claims |
| Johnson & JohnsonXarelto | $268 | $10,88214 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 90th percentile of 495 medical oncology providers in Texas.
Other medical oncology in Waco
- Moshe LevyDallas$5.1M
- Suresh RatnamMcAllen$3M
- Roy HerbstHouston$1.9M
- Andrew WhiteleyDallas$1.7M
- Eric NadlerDallas$1.6M
- Vijay GunugantiSan Antonio$1.5M
- Sue EckhardtAustin$1.5M
- Joyce O'ShaughnessyDallas$1.3M
- Ronan KellyDallas$1.1M
- Maen AbdelrahimHouston$999K
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.