Colin Weekes, MD
Medical Oncology · Baltimore, MDNPI 1043366750
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $77,995 of the $89,242 with a category attached, or 87.4%. It is spread thinly across 14 manufacturers, the largest accounting for just 23.1%. Reporting peaked in 2019 at $32,731 and has fallen 53.1% since, to $15,337 in 2025.
Across 75 payments — averaging $1189.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Ipsen Biopharmaceuticals, Inc$21K
- E.r. Squibb & Sons, L.L.C.$15K
- GSK$14K
- Bristol Myers Squibb$10K
- Eli Lilly$10K
- Novartis$6K
- plus $13K from 8 others
Across 357 payments — averaging $6886.33 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.
- Deciphera Pharmaceuticals Inc.$1.1M
- Novartis$442K
- E.r. Squibb & Sons, L.L.C.$425K
- Genentech, Inc.$245K
- Mirati Therapeutics, Inc.$182K
- AstraZeneca$32K
- plus $62K from 3 others
What the payments were for
- Consulting fees$77,99587%
- Speaking & faculty fees$6,5707%
- Travel & lodging$2,8163%
- Food & beverage$1,7742%
- Education$430%
- Gifts$440%
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 |
|---|---|---|
| Ipsen Biopharmaceuticals, Inc | 17 | $20,581 |
| E.r. Squibb & Sons, L.L.C. | 11 | $15,099 |
| GSK | 1 | $14,000 |
| Bristol Myers Squibb | 4 | $10,290 |
| Eli Lilly | 23 | $9,904 |
| Novartis | 2 | $6,004 |
| Exelixis Inc. | 5 | $4,903 |
| Genentech, Inc. | 3 | $3,513 |
| Merck | 2 | $2,745 |
| Ipsen Bioscience Inc. | 2 | $1,904 |
| Histosonics, Inc. | 1 | $150 |
| Deciphera Pharmaceuticals Inc. | 2 | $62 |
| Tesaro, Inc. | 1 | $44 |
| AstraZeneca | 1 | $43 |
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
$89,242 in reported general payments places this provider in the 85th percentile of 180 medical oncology providers in Maryland.
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 |
|---|---|---|
| CreonLipase/Protease/Amylase | 24 | $65,748 |
| Prochlorperazine Maleate | 19 | $527 |
| Dexamethasone | 20 | $209 |
Paid to pharmacies, not to this prescriber.
Other medical oncology in Baltimore
- Mario EisenbergerBaltimore$2.9M
- David SidranskyBaltimore$520K
- Carole MillerBaltimore$331K
- Mark LevisBaltimore$323K
- Tanguy Lim-SeiwertBaltimore$301K
- Shruti ChaturvediBaltimore$265K
- Sandy KotiahBaltimore$247K
- Bruce SmithBaltimore$235K
- Evan LipsonBaltimore$228K
- Nilofer AzadBaltimore$143K
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.