Sommer Gunia, DO
Surgery · Scottsdale, AZNPI 1962672477
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $19,288 of the $27,579 with a category attached, or 69.9%. Stryker accounts for 94.9% of it on its own, with 11 other manufacturers making up the rest. Reporting peaked in 2023 at $18,879 and has fallen 98.3% since, to $321 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 66 payments — averaging $417.87 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stryker$26K
- Biom'up France SAS$500
- Endomagnetics Ltd$316
- Hologic Sales And Service, LLC$146
- Johnson & Johnson$121
- Mentor Worldwide LLC$88
- plus $229 from 6 others
What the payments were for
- Consulting fees$19,28870%
- Speaking & faculty fees$5002%
- Travel & lodging$5,28719%
- Food & beverage$2,5059%
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 |
|---|---|---|
| Stryker | 47 | $26,179 |
| Biom'up France SAS | 1 | $500 |
| Endomagnetics Ltd | 3 | $316 |
| Hologic Sales And Service, LLC | 1 | $146 |
| Johnson & Johnson | 1 | $121 |
| Mentor Worldwide LLC | 1 | $88 |
| Focal Therapeutics, Inc. | 1 | $53 |
| Bioptics, Inc. | 3 | $53 |
| Merit Medical Systems Inc | 4 | $44 |
| Dilon Technologies, Inc. | 2 | $42 |
| Elucent Medical | 1 | $24 |
| Innovation Technologies Inc | 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.
- SPY-PHI SYSTEM$14,731
- 1688$14,143
- ICONIX$1,138
- MOLLI$790
- 1788$684
- 1588 HD 3 CHIP CAMERA$599
- HemoBlast Bellows$500
- Magtrace$431
- Magseed$284
- XARELTO$121
- CHROMOPHARE F300$118
How this compares
$27,579 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 |
|---|---|---|
| Ondansetron OdtOndansetron | 14 | $121 |
| Tramadol Hcl | 63 | $108 |
| Oxycodone Hcl | 12 | $37 |
Paid to pharmacies, not to this prescriber.
Other surgery in Scottsdale
- Deva BooneScottsdale$78K
- Vanitha VasudevanScottsdale$49K
- James SwainScottsdale$49K
- Noemi SigaloveScottsdale$27K
- Hadi NajafianSun City$1.6M
- Conrad BallecerPhoenix$893K
- Jennifer PrestonPhoenix$320K
- Ramon MoureloCasa Grande$317K
- Simon LavotshkinYuma$309K
- Morgan CriggerPhoenix$235K
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.