Katherine E. Ruff, DNP, ARNP, FNP-BC
NPI 1225699820ActiveIndividual· Nurse Practitioner, Family· Maquoketa, IA
Nurse Practitioner, Family (DNP, ARNP, FNP-BC) with Medical Associates of Maquoketa PC, practicing in Maquoketa, Iowa. Their prescriptions cost Medicare Part D more than their services did: $247,765 for 3,145 claims, against $26,889 paid for services in 2024. Abbvie Inc. was the largest of 7 companies reporting payments in 2025, $279.06 in all, mostly food and beverage. Lists Jackson County Regional Health Center as a hospital affiliation.
Overview
| NPI | 1225699820 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP, ARNP, FNP-BC |
| Sole proprietor | Yes |
| NPI issued | Jun 25, 2019 |
| Last updated in NPPES | May 7, 2021 |
| Certified by provider | May 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | A155110 | IA |
| Family Medicine | 207Q00000X | A155110 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 259 |
|---|---|
| Services billed | 1,371 across 38 procedure codes |
| Paid by Medicare | $26,889 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,145 · 6,260 30-day fills |
|---|---|
| Patients | 428 |
| Total drug cost | $247,765 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Medical Associates of Maquoketa PCWyoming, IA · 6 clinicians
Hospital affiliation
- Jackson County Regional Health CenterMaquoketa, IA
Industry payments (Open Payments)
- 2025$279.06 · 14 payments from 7 companies
- 2024$278.15 · 13 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $72.35 | 3 |
| Pfizer Inc. | $70.91 | 4 |
| Lilly USA, LLC | $56.26 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $26.75 | 1 |
| Exact Sciences Corporation | $20.46 | 1 |
What the 2025 payments were for
- Food and Beverage$279.06 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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