Karen Kay Luken, NP
NPI 1942469960ActiveIndividual· Nurse Practitioner· Clive, IA
Nurse Practitioner (NP) with Iowa Digestive Disease Center PC and 1 other group, practicing in Clive, Iowa. Their prescriptions cost Medicare Part D more than their services did: $733,263 for 1,291 claims, against $33,188 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 5 companies reporting payments in 2025, $288.56 in all, mostly food and beverage. Lists Greene County Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1942469960 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Jun 5, 2008 |
| Last updated in NPPES | Feb 21, 2024 |
| Certified by provider | Feb 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | A079534 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 346 |
|---|---|
| Services billed | 465 across 8 procedure codes |
| Paid by Medicare | $33,188 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,291 · 2,476 30-day fills |
|---|---|
| Patients | 335 |
| Total drug cost | $733,263 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Iowa Digestive Disease Center PCClive, IA · 24 clinicians
- Greene County Medical CenterJefferson, IA · 17 clinicians
Hospital affiliations
- Greene County Medical CenterJefferson, IA
- Mercyone Des Moines Medical CenterDes Moines, IA
- Pella Regional Health CenterPella, IA
- Ringgold County HospitalMount Ayr, IA
- Unitypoint Health - Des Moines Iowa Methodist MediDes Moines, IA
Industry payments (Open Payments)
- 2025$288.56 · 7 payments from 5 companies
- 2024$397.49 · 19 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $110.66 | 1 |
| Novo Nordisk Inc | $100.04 | 1 |
| Aimmune Therapeutics, Inc. | $33.72 | 1 |
| Gilead Sciences, Inc. | $27.64 | 1 |
| Phathom Pharmaceuticals, Inc. | $16.50 | 3 |
What the 2025 payments were for
- Food and Beverage$288.56 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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