Bobbie Head, PhD
Medical Oncology · Greenbrae, CANPI 1053412403
Payments from drug & device makers
What this record shows
9 manufacturers reported payments, led by Pfizer at 49.2% of the total. Reporting peaked in 2021 at $66 and has fallen 55.3% since, to $30 in 2025. That places this record below the midpoint for medical oncology clinicians in CA, where the typical reported total is $4,042.
Across 16 payments — averaging $16.55 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$130
- Medtronic$35
- AbbVie$16
- Boston Scientific$16
- EMD Serono, Inc.$15
- Acrotech Biopharma Inc.$14
- plus $39 from 3 others
Across 11 payments — averaging $23,545 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$253K
- Puma Biotechnology, Inc.$6K
What the payments were for
- Food & beverage$10941%
- Education$15659%
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 |
|---|---|---|
| Pfizer | 8 | $130 |
| Medtronic | 1 | $35 |
| AbbVie | 1 | $16 |
| Boston Scientific | 1 | $16 |
| EMD Serono, Inc. | 1 | $15 |
| Acrotech Biopharma Inc. | 1 | $14 |
| Tempus AI, Inc | 1 | $14 |
| Bristol Myers Squibb | 1 | $13 |
| Gilead | 1 | $12 |
How this compares
$265 in reported general payments places this provider in the 20th percentile of 379 medical oncology providers in California.
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 |
|---|---|---|
| TagrissoOsimertinib Mesylate | 38 | $591,575 |
| VerzenioAbemaciclib | 27 | $450,781 |
| KisqaliRibociclib Succinate | 21 | $211,289 |
| IbrancePalbociclib | 13 | $182,445 |
| Lenalidomide | 12 | $83,775 |
| EliquisApixaban | 33 | $26,948 |
| XareltoRivaroxaban | 13 | $12,069 |
| Letrozole | 213 | $7,588 |
| Tamoxifen Citrate | 204 | $5,890 |
| Anastrozole | 240 | $5,851 |
| Exemestane | 17 | $2,442 |
| Estradiol | 18 | $1,950 |
| Alendronate Sodium | 60 | $994 |
| Venlafaxine Hcl ErVenlafaxine Hcl | 47 | $892 |
| Hydroxyurea | 19 | $644 |
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 |
|---|---|---|
| PfizerIbrance, Eliquis | $130 | $209,39346 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 20th percentile of 379 medical oncology providers in California.
Other medical oncology in Greenbrae
- Stephen SherwinSan Francisco$6.9M
- Noam DrazinBeverly Hills$1.4M
- Farshid DayyaniOrange$1.2M
- April TeitelbaumSan Diego$1.1M
- Przemyslaw TwardowskiSanta Monica$995K
- Ann LowePalo Alto$923K
- Marin XavierSan Diego$919K
- Munveer Bhangoola Jolla$804K
- Stephen LiuLos Angeles$750K
- Jacek PinskiLos Angeles$672K
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.