Michael Davis, DO
Vascular Surgery · Bullhead City, AZNPI 1689928061
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (53.0%), food and beverage and education — rather than concentrated in one kind of arrangement. 13 manufacturers reported payments, led by Abbott at 51.5% of the total. Reporting peaked in 2024 at $3,000 and has fallen 99.2% since, to $23 in 2025. That places this record below the midpoint for vascular surgery clinicians in AZ, where the typical reported total is $6,983.
Across 99 payments — averaging $60.10 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$3K
- Medtronic$2K
- Silk Road Medical, Inc.$394
- Cardiovascular Systems Inc.$120
- Inari Medical, Inc.$47
- Abiomed$42
- plus $147 from 7 others
What the payments were for
- Travel & lodging$3,15153%
- Food & beverage$2,46942%
- Education$3306%
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 |
|---|---|---|
| Abbott | 21 | $3,064 |
| Medtronic(2 entities) | 55 | $2,136 |
| Silk Road Medical, Inc. | 4 | $394 |
| Cardiovascular Systems Inc. | 6 | $120 |
| Inari Medical, Inc. | 1 | $47 |
| Abiomed | 2 | $42 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 2 | $35 |
| Philips North America LLC | 2 | $30 |
| Bard Peripheral Vascular, Inc. | 2 | $27 |
| Stimwave Technologies Incorporated | 1 | $15 |
| Merck | 1 | $15 |
| Tactile Systems Technology Inc | 1 | $14 |
| KCI USA, Inc. | 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
$5,950 in reported general payments places this provider in the 45th percentile of 105 vascular 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 |
|---|---|---|
| Cilostazol | 71 | $1,150 |
| Atorvastatin Calcium | 95 | $558 |
| ClopidogrelClopidogrel Bisulfate | 77 | $373 |
| Rosuvastatin Calcium | 28 | $202 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Bullhead City
- Venkatesh RamaiahScottsdale$452K
- Jeromy BrinkPhoenix$392K
- Luis LeonPhoenix$185K
- Hammad AmerMesa$169K
- Baljeet UppalSun City$166K
- Scott BermanTuscon$150K
- Martin ZomayaPhoenix$139K
- Joshua BaldermanTucson$135K
- John PacanowskiTucson$85K
- Joseph VijungcoChandler$63K
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.