Wells Messersmith, MD
Medical Oncology · Aurora, CONPI 1760431472
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $16,000 of the $16,557 with a category attached, or 96.6%. Amgen accounts for 73.1% of it on its own, with 3 other manufacturers making up the rest. 2024 is the largest year on record at $5,500, 2.1 times the $2,657 reported in 2019.
Across 23 payments — averaging $719.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$12K
- Taiho Oncology, Inc.$3K
- Pfizer$2K
- Natus Medical Incorporated$13
Across 234 payments — averaging $26,926 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.
- Merck$2.6M
- Exelixis Inc.$905K
- Bristol Myers Squibb$884K
- Pfizer$883K
- AstraZeneca$344K
- Beigene, Ltd.$259K
- plus $377K from 6 others
What the payments were for
- Consulting fees$16,00097%
- Travel & lodging$3692%
- Food & beverage$1871%
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 |
|---|---|---|
| Amgen | 16 | $12,100 |
| Taiho Oncology, Inc. | 5 | $2,644 |
| Pfizer | 1 | $1,800 |
| Natus Medical Incorporated | 1 | $13 |
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.
- TAS-102$2,626
How this compares
$16,557 in reported general payments places this provider in the 80th percentile of 96 medical oncology providers in Colorado.
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 |
|---|---|---|
| FruzaqlaFruquintinib | 18 | $464,318 |
| WeliregBelzutifan | 11 | $95,620 |
| EliquisApixaban | 12 | $20,952 |
| Fentanyl | 20 | $3,798 |
| Everolimus | 13 | $3,586 |
| Prochlorperazine Maleate | 14 | $181 |
| Ondansetron Hcl | 20 | $180 |
| Mirtazapine | 13 | $63 |
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 |
|---|---|---|
| PfizerEliquis | $1,800 | $20,95212 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 80th percentile of 96 medical oncology providers in Colorado.
Other medical oncology in Aurora
- David CamidgeAurora$648K
- Paul BunnAurora$354K
- Sapna PatelAurora$186K
- Sunnie KimAurora$81K
- Virginia BorgesAurora$68K
- Erin SchenkAurora$63K
- Karl LewisAurora$62K
- Jose PachecoAurora$50K
- Leonard GlodeAurora$49K
- Robert DoebeleAurora$38K
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.