Piyush Aggarwal, MD
Colon & Rectal Surgery · Walnut Creek, CANPI 1700070273
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (30.3%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 63.4% of it on its own, with 22 other manufacturers making up the rest. Reporting peaked in 2019 at $4,006 and has fallen 99.2% since, to $33 in 2025.
Across 69 payments — averaging $128.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$6K
- Medtronic$1K
- Axonics, Inc.$787
- AbbVie$198
- BD$171
- Conmed Corporation$140
- plus $559 from 17 others
Across 55 payments — averaging $1596.26 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.
- Biontech SE$88K
What the payments were for
- Speaking & faculty fees$2,20025%
- Travel & lodging$2,69230%
- Food & beverage$2,00123%
- Education$2,00022%
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 |
|---|---|---|
| Intuitive Surgical | 13 | $5,635 |
| Medtronic(2 entities) | 16 | $1,405 |
| Axonics, Inc. | 8 | $787 |
| AbbVie | 5 | $198 |
| BD | 2 | $171 |
| Conmed Corporation | 2 | $140 |
| Janssen Scientific Affairs, LLC | 1 | $99 |
| Johnson & Johnson(2 entities) | 3 | $60 |
| Coloplast | 2 | $52 |
| Stryker | 1 | $42 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $39 |
| Pfizer | 2 | $37 |
| Davol Inc. | 1 | $33 |
| Shionogi Inc | 2 | $29 |
| Gilead | 1 | $27 |
| Tesaro, Inc. | 1 | $25 |
| Braintree Laboratories, Inc. | 1 | $22 |
| Baxter Healthcare | 1 | $17 |
| Edwards Lifesciences | 1 | $17 |
| Avanos Medical | 1 | $17 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $16 |
| Merck | 1 | $12 |
| Boston Scientific | 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.
- Da Vinci Surgical System$5,348
- INTERSTIM$1,019
- Bulkamid$653
- Axonics$653
How this compares
$8,893 in reported general payments places this provider in the 65th percentile of 176 colon & rectal surgery 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 |
|---|---|---|
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 24 | $1,556 |
| Neomycin Sulfate | 25 | $133 |
| Metronidazole | 27 | $31 |
| Ondansetron Hcl | 18 | $26 |
| Tramadol Hcl | 14 | $18 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Walnut Creek
- Ran KimWalnut Creek$24K
- Poornima VanguriWalnut Creek$12K
- Sang LeeLos Angeles$2.4M
- Pamela LeeSan Diego$544K
- Elizabeth RaskinSacramento$126K
- Shohrat AnnaberdyevRoseville$101K
- Alessio PigazziLos Angeles$100K
- Joseph CarmichaelOrange$99K
- Phillip FleshnerWest Hollywood$95K
- Zuri MurrellBeverly Hills$86K
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.