Brian McGuinness, MD
Colon & Rectal Surgery · Walnut Creek, CANPI 1891870770
Payments from drug & device makers
Across 51 payments — averaging $27.92 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$192
- Integra Lifesciences Corporation$134
- Solventum Corporation$111
- Vertex$102
- Davol Inc.$96
- Johnson & Johnson$84
- plus $706 from 17 others
What the payments were for
- Food & beverage$1,424100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| AbbVie(2 entities) | 9 | $192 |
| Integra Lifesciences Corporation | 5 | $134 |
| Solventum Corporation | 1 | $111 |
| Vertex | 3 | $102 |
| Davol Inc. | 3 | $96 |
| Johnson & Johnson | 3 | $84 |
| Inspire Medical Systems, Inc. | 1 | $80 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $75 |
| Heron Therapeutics, Inc. | 3 | $64 |
| Braintree Laboratories, Inc. | 3 | $63 |
| Ferring Pharmaceuticals Inc. | 3 | $54 |
| Biotissue Holdings Inc. | 1 | $48 |
| Axonics, Inc. | 2 | $48 |
| Convatec Inc. | 1 | $43 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $40 |
| Teleflex LLC | 1 | $28 |
| Sanara Medtech Inc. | 1 | $27 |
| La Jolla Pharmaceutical Company | 1 | $27 |
| Aroa Biosurgery Incorporated | 1 | $25 |
| Coloplast | 1 | $25 |
| Acera Surgical, Inc. | 1 | $23 |
| Coopersurgical, Inc. | 1 | $20 |
| Covidien LP | 1 | $15 |
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.
- PREVENA$111
How this compares
$1,424 in reported general payments places this provider in the 30th 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 | 13 | $926 |
| Celecoxib | 12 | $154 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 13 | $100 |
| Tramadol Hcl | 13 | $59 |
| Gabapentin | 11 | $12 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Walnut Creek
- Piyush AggarwalWalnut Creek$97K
- Ran KimWalnut Creek$24K
- Poornima VanguriWalnut Creek$12K
- Sang LeeLos Angeles$2.6M
- Pamela LeeSan Diego$544K
- Phillip FleshnerWest Hollywood$404K
- Hueylan ChernSan Francisco$328K
- Joseph CarmichaelOrange$179K
- Samuel EisensteinSan Diego$147K
- Elizabeth RaskinSacramento$126K
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.