Natalia Colocci, MD
Medical Oncology · Palo Alto, CANPI 1215948484
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (58.9%), food and beverage and education — rather than concentrated in one kind of arrangement. Bayer accounts for 60.3% of it on its own, with 8 other manufacturers making up the rest. 2025 is the largest year on record at $1,157, more than ten times the $24 reported in 2019. That places this record below the midpoint for medical oncology clinicians in CA, where the typical reported total is $4,042.
Across 20 payments — averaging $75.60 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Bayer$912
- AstraZeneca$361
- Daiichi Sankyo Inc.$98
- Pfizer$55
- GSK$27
- Iovance Biotherapeutics, Inc.$21
- plus $38 from 3 others
Across 188 payments — averaging $1230.69 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.
- Pfizer$133K
- Novartis$98K
- Merck$96
What the payments were for
- Consulting fees$89059%
- Food & beverage$52935%
- Education$936%
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 |
|---|---|---|
| Bayer | 2 | $912 |
| AstraZeneca | 5 | $361 |
| Daiichi Sankyo Inc. | 4 | $98 |
| Pfizer | 4 | $55 |
| GSK | 1 | $27 |
| Iovance Biotherapeutics, Inc. | 1 | $21 |
| Acrotech Biopharma Inc. | 1 | $14 |
| Seagen Inc. | 1 | $12 |
| Gilead | 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.
How this compares
$1,512 in reported general payments places this provider in the 35th 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 |
|---|---|---|
| XtandiEnzalutamide | 43 | $573,163 |
| ErleadaApalutamide | 33 | $485,111 |
| TukysaTucatinib | 14 | $342,006 |
| IbrancePalbociclib | 14 | $242,035 |
| CreonLipase/Protease/Amylase | 13 | $33,872 |
| Abiraterone Acetate | 32 | $32,870 |
| EliquisApixaban | 14 | $13,815 |
| Anastrozole | 212 | $3,759 |
| Exemestane | 30 | $3,570 |
| Tamoxifen Citrate | 79 | $1,732 |
| Dexamethasone | 23 | $676 |
| Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine | 16 | $563 |
| Letrozole | 18 | $510 |
| Prochlorperazine Maleate | 40 | $373 |
| Ondansetron Hcl | 28 | $291 |
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 |
|---|---|---|
| Seagen Inc.Tukysa | $12 | $342,00614 claims |
| PfizerIbrance, Eliquis | $55 | $255,85028 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 35th percentile of 379 medical oncology providers in California.
Other medical oncology in Palo Alto
- Ann LowePalo Alto$923K
- Millie DasPalo Alto$152K
- Milana DolezalPalo Alto$135K
- Curtis ChongPalo Alto$99K
- Stephen SherwinSan Francisco$6.9M
- Noam DrazinBeverly Hills$1.4M
- Farshid DayyaniOrange$1.2M
- April TeitelbaumSan Diego$1.1M
- Przemyslaw TwardowskiSanta Monica$995K
- Marin XavierSan Diego$919K
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.