Natalia Gaulke, DO
Diagnostic Radiology · Boulder, CONPI 1295054047
Payments from drug & device makers
What this record shows
7 manufacturers reported payments, led by Sirtex Medical Inc at 49.3% of the total. Reporting peaked in 2019 at $1,855 and has fallen 96.1% since, to $73 in 2024. Among diagnostic radiology clinicians in CO 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 34 payments — averaging $83.62 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sirtex Medical Inc$1K
- Medtronic$1K
- Penumbra, Inc.$203
- Stryker$128
- Angiodynamics, Inc.$16
- Relievant Medsystems, Inc.$15
- plus $15 from 1 others
What the payments were for
- Travel & lodging$1,46251%
- Food & beverage$1,38149%
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 |
|---|---|---|
| Sirtex Medical Inc | 8 | $1,403 |
| Medtronic(2 entities) | 20 | $1,063 |
| Penumbra, Inc. | 2 | $203 |
| Stryker | 1 | $128 |
| Angiodynamics, Inc. | 1 | $16 |
| Relievant Medsystems, Inc. | 1 | $15 |
| Cook Medical LLC | 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.
How this compares
$2,843 in reported general payments places this provider in the 90th percentile of 625 diagnostic radiology providers in Colorado.
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.
Other diagnostic radiology in Boulder
- Joseph SteeleEnglewood$4.9M
- Mark DennisEnglewood$4.7M
- Steve ParkerEnglewood$3M
- Jeffrey GuyonWheat Ridge$2M
- Donald FreiEnglewood$1.2M
- James IngramDenver$811K
- Dennis GriffinEnglewood$331K
- Ian KaminskyEnglewood$275K
- David PorterGreenwood Village$260K
- Andrew FisherEnglewood$247K
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.