Erin Cobain, MD
Medical Oncology · Ann Arbor, MINPI 1093949745
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $29,259 of the $38,289 with a category attached, or 76.4%. 8 manufacturers reported payments, led by AstraZeneca at 33.4% of the total. 2025 is the largest year on record at $13,745, 6.1 times the $2,272 reported in 2019.
Across 65 payments — averaging $589.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$13K
- Gilead$6K
- Lilly USA, LLC$5K
- Novartis$5K
- Daiichi Sankyo Inc.$4K
- Athenex Pharmaceutical Division, LLC$3K
- plus $3K from 2 others
Across 32 payments — averaging $61,022 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.
- Novartis$1.8M
- Genmab U.S., Inc.$58K
- AstraZeneca$54K
- Pfizer$10K
What the payments were for
- Consulting fees$29,25976%
- Speaking & faculty fees$5,60015%
- Travel & lodging$1,5404%
- Food & beverage$1,8785%
- Education$120%
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 |
|---|---|---|
| AstraZeneca | 36 | $12,801 |
| Gilead | 8 | $5,520 |
| Lilly USA, LLC | 3 | $5,200 |
| Novartis | 4 | $4,720 |
| Daiichi Sankyo Inc. | 5 | $4,361 |
| Athenex Pharmaceutical Division, LLC | 7 | $3,022 |
| Astrazeneca UK Limited | 1 | $1,665 |
| Immunomedics, Inc. | 1 | $1,000 |
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.
- Trodelvy$5,333
- KISQALI$4,659
- Truqap$3,675
- Oral Paclitaxel$2,500
- Encequidar$2,500
- LYNPARZA$1,665
- Enhertu$1,110
How this compares
$38,289 in reported general payments places this provider in the 85th percentile of 170 medical oncology providers in Michigan.
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 |
|---|---|---|
| Exemestane | 15 | $6,273 |
| Anastrozole | 108 | $2,846 |
| Letrozole | 17 | $508 |
Paid to pharmacies, not to this prescriber.
Other medical oncology in Ann Arbor
- Harry ErbaAnn Arbor$1.1M
- Frank WeinbergAnn Arbor$195K
- Francis WordenAnn Arbor$142K
- Maha HussainAnn Arbor$114K
- Moshe TalpazAnn Arbor$83K
- Vaibhav SahaiAnn Arbor$80K
- Howard TerebeloAnn Arbor$47K
- Angel QinAnn Arbor$41K
- Phillip PalmbosAnn Arbor$37K
- Rashmi ChughAnn Arbor$33K
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.