Donna Clarkin, NP
Obstetrics & Gynecology · Littleton, CONPI 1689623951
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 19 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 13 manufacturers reported payments, led by AbbVie at 25.7% of the total. Reporting peaked in 2023 at $179 and has fallen 77.0% since, to $41 in 2024. That places this record below the midpoint for obstetrics & gynecology clinicians in CO, where the typical reported total is $406.
Across 19 payments — averaging $19.23 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$94
- Novo Nordisk$48
- Acella Pharmaceuticals, LLC$29
- Exact Sciences$28
- C. R. Bard, Inc. & Subsidiaries$25
- Bausch Health US, LLC$25
- plus $116 from 7 others
What the payments were for
- Food & beverage$365100%
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 | 4 | $94 |
| Novo Nordisk | 3 | $48 |
| Acella Pharmaceuticals, LLC | 2 | $29 |
| Exact Sciences | 1 | $28 |
| C. R. Bard, Inc. & Subsidiaries | 1 | $25 |
| Bausch Health US, LLC | 1 | $25 |
| Roche Diagnostics Corporation | 1 | $23 |
| Exeltis, USA Inc. | 1 | $18 |
| Amneal Pharmaceuticals LLC | 1 | $17 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $16 |
| AstraZeneca | 1 | $15 |
| Coopersurgical, Inc. | 1 | $14 |
| Ascend Therapeutics US, LLC | 1 | $13 |
How this compares
$365 in reported general payments places this provider in the 45th percentile of 705 obstetrics & gynecology 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 obstetrics & gynecology in Littleton
- Emily LandersLittleton$28K
- Julie GelmanLittleton$27K
- Suzanne WeberLittleton$18K
- Rayna TrietschLittleton$6K
- John CraneLoveland$415K
- James LukbanEnglewood$175K
- Wayne FurrLonetree$106K
- William BrownDenver$76K
- Kristina TocceDenver$57K
- Jill LissAurora$57K
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.