Patrick Chiasson, MD
Surgery · Tucson, AZNPI 1861458754
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $34,580 of the $46,110 with a category attached, or 75.0%. Medical Device Business Services, Inc. accounts for 61.9% of it on its own, with 19 other manufacturers making up the rest. Reporting peaked in 2024 at $17,720 and has fallen 62.6% since, to $6,625 in 2025. Among surgery clinicians in AZ with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 150 payments — averaging $307.40 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medical Device Business Services, Inc.$29K
- Johnson & Johnson$9K
- Intuitive Surgical$6K
- Apollo Endosurgery US Inc$1K
- W. L. Gore & Associates, Inc.$513
- Boston Scientific$264
- plus $941 from 14 others
Across 23 payments — averaging $1067.19 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.
- Johnson & Johnson$25K
What the payments were for
- Consulting fees$34,58075%
- Travel & lodging$2,4045%
- Food & beverage$4,3779%
- Education$4,75010%
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 |
|---|---|---|
| Medical Device Business Services, Inc. | 20 | $28,561 |
| Johnson & Johnson(2 entities) | 79 | $8,635 |
| Intuitive Surgical | 12 | $5,987 |
| Apollo Endosurgery US Inc | 10 | $1,208 |
| W. L. Gore & Associates, Inc. | 3 | $513 |
| Boston Scientific | 2 | $264 |
| Medtronic | 4 | $204 |
| Atricure, Inc. | 1 | $139 |
| Ethicon Endo-surgery Inc. | 1 | $111 |
| Penumbra, Inc. | 1 | $89 |
| Phathom Pharmaceuticals, Inc. | 4 | $76 |
| Endogastric Solutions, Inc | 1 | $74 |
| Novo Nordisk | 4 | $72 |
| Redhill Biopharma Inc. | 2 | $42 |
| Laborie Medical Technologies Corp. | 1 | $35 |
| Olympus America Inc. | 1 | $24 |
| Integra Lifesciences Corporation | 1 | $23 |
| KARL Storz Endoscopy-america | 1 | $21 |
| Enterra Medical, Inc. | 1 | $18 |
| Intra-sana Laboratories | 1 | $14 |
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.
- Echelon Flex$17,065
- ECHELON ENDOPATH$17,023
- Echelon Circular$10,380
- Harmonic$10,270
- DAVINCI XI$4,750
- Da Vinci Surgical System$930
- OverStitch Endoscopic Suturing System$828
- GORE ENFORM Preperitoneal Biomaterial$513
- ORBERA Intragastric Balloon System$285
- Signia$166
- ATRICURE CRYOICE CRYOSPHERE CRYOABLATION SYSTEM$139
- N/A$128
- LINX Reflux Management System$125
- CAPTIVATOR COLD$100
How this compares
$46,110 in reported general payments places this provider in the 90th percentile of 614 surgery providers in Arizona.
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 |
|---|---|---|
| EliquisApixaban | 20 | $11,845 |
| Ursodiol | 48 | $3,346 |
| Omeprazole | 128 | $2,021 |
| Aprepitant | 43 | $1,993 |
| Ondansetron OdtOndansetron | 118 | $1,920 |
| Colestipol Hcl | 11 | $1,676 |
| Sucralfate | 18 | $1,381 |
| Famotidine | 62 | $861 |
| Pantoprazole Sodium | 58 | $700 |
| Celecoxib | 79 | $301 |
| Scopolamine | 18 | $271 |
| Ondansetron Hcl | 12 | $92 |
| Oxycodone Hcl | 23 | $62 |
Paid to pharmacies, not to this prescriber.
Other surgery in Tucson
- Rifat LatifiTucson$144K
- Katie ArtzTucson$103K
- Jenelle OlsonTucson$72K
- Stuart MelcerTucson$71K
- Andrew NejadTucson$57K
- Tiffany SonTucson$47K
- Michael ProbstfeldTucson$46K
- Guillermo Higa SansoneTucson$42K
- Kelly LaraTucson$36K
- Sarah Lee-DavissonTucson$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.