Christopher Manus, MD
Hematology & Oncology · Bartlesville, OKNPI 1629282389
Payments from drug & device makers
Across 188 payments — averaging $476.01 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$87K
- Pfizer$699
- E.r. Squibb & Sons, L.L.C.$381
- AstraZeneca$184
- Sanofi$155
- Amgen$113
- plus $1K from 24 others
What the payments were for
- Food & beverage$1,85069%
- Education$84231%
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.
| Company | Payments | Total |
|---|---|---|
| Merck | 60 | $86,823 |
| Pfizer | 54 | $699 |
| E.r. Squibb & Sons, L.L.C. | 6 | $381 |
| AstraZeneca | 5 | $184 |
| Sanofi | 7 | $155 |
| Amgen | 5 | $113 |
| Gilead | 7 | $101 |
| Exelixis Inc. | 1 | $82 |
| Daiichi Sankyo Inc. | 3 | $77 |
| Bristol Myers Squibb | 4 | $77 |
| Janssen Scientific Affairs, LLC | 1 | $77 |
| Regeneron Healthcare Solutions, Inc. | 3 | $75 |
| Seagen Inc. | 4 | $71 |
| Bayer | 3 | $67 |
| AbbVie | 3 | $61 |
| Taiho Oncology, Inc. | 2 | $51 |
| Lilly USA, LLC | 3 | $50 |
| Myovant Sciences Inc. | 2 | $48 |
| Astellas Pharma US Inc | 2 | $45 |
| EMD Serono, Inc. | 2 | $42 |
| Genentech USA, Inc. | 2 | $33 |
| Boehringer Ingelheim | 1 | $32 |
| Johnson & Johnson | 1 | $28 |
| Eisai Inc. | 1 | $23 |
| Puma Biotechnology, Inc. | 1 | $19 |
| Pharmacyclics LLC, An Abbvie Company | 1 | $18 |
| Agios Pharmaceuticals, Inc. | 1 | $16 |
| Ipsen Biopharmaceuticals, Inc | 1 | $16 |
| Sun Pharmaceutical Industries Inc. | 1 | $15 |
| Acrotech Biopharma Inc. | 1 | $12 |
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.
- OPDIVO$315
How this compares
$89,489 in reported general payments places this provider in the 75th percentile of 118 hematology & oncology providers in Oklahoma.
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 |
|---|---|---|
| CalquenceAcalabrutinib Maleate | 49 | $729,781 |
| TasignaNilotinib Hcl | 25 | $479,810 |
| PomalystPomalidomide | 22 | $387,608 |
| ImbruvicaIbrutinib | 27 | $353,113 |
| IbrancePalbociclib | 22 | $340,744 |
| RevlimidLenalidomide | 20 | $295,166 |
| Lenalidomide | 11 | $182,159 |
| Abiraterone Acetate | 44 | $151,639 |
| XtandiEnzalutamide | 11 | $80,055 |
| EliquisApixaban | 45 | $45,619 |
| XareltoRivaroxaban | 25 | $23,723 |
| VenclextaVenetoclax | 12 | $13,986 |
| Atovaquone | 26 | $10,162 |
| Anastrozole | 446 | $8,592 |
| Enoxaparin Sodium | 12 | $7,080 |
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 |
|---|---|---|
| AstraZenecaCalquence | $184 | $729,78149 claims |
| E.r. Squibb & Sons, L.L.C.Pomalyst | $381 | $387,60822 claims |
| PfizerIbrance, Eliquis | $699 | $386,36367 claims |
| Pharmacyclics LLC, An Abbvie CompanyImbruvica | $18 | $353,11327 claims |
| Bristol Myers SquibbRevlimid | $77 | $295,16620 claims |
| Janssen Scientific Affairs, LLCAbiraterone Acetate | $77 | $151,63944 claims |
| Astellas Pharma US IncXtandi | $45 | $80,05511 claims |
| Johnson & JohnsonXarelto | $28 | $23,72325 claims |
| AbbVieVenclexta | $61 | $13,98612 claims |
| Lilly USA, LLCOlanzapine | $50 | $19125 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 118 hematology & oncology providers in Oklahoma.
Other hematology & oncology in Bartlesville
- Susanna UlahannanPonca City$8.3M
- Adam AschOklahoma City$2M
- Adanma Anji Ayanambakkam AttanathiOklahoma City$1.9M
- Kevin WeibelTulsa$1.7M
- Hassan HatoumOklahoma City$1.4M
- Abdul Rafeh NaqashOklahoma City$1.1M
- Sami IbrahimiOklahoma City$1M
- Scott ColeTulsa$644K
- Carrie YuenOklahoma City$564K
- Than AyeLawton$461K
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.