Cristina Lynn Holtorf, MSN, ARNP, FNP-BC
NPI 1790440808ActiveIndividual· Nurse Practitioner· Waukee, IA
Nurse Practitioner (MSN, ARNP, FNP-BC) with The Iowa Clinic PC, practicing in Waukee, Iowa. Their prescriptions cost Medicare Part D more than their services did: $222,031 for 407 claims, against $59,002 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 17 companies reporting payments in 2025, $1,527 in all, mostly food and beverage.
Overview
| NPI | 1790440808 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MSN, ARNP, FNP-BC |
| Sole proprietor | No |
| NPI issued | Nov 3, 2021 |
| Last updated in NPPES | Dec 21, 2023 |
| Certified by provider | Dec 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | A166335 | 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 | 376 |
|---|---|
| Services billed | 1,874 across 42 procedure codes |
| Paid by Medicare | $59,002 |
Part D prescriptions in 2024
| Prescriptions (claims) | 407 · 443 30-day fills |
|---|---|
| Patients | 157 |
| Total drug cost | $222,031 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- The Iowa Clinic PCAnkeny, IA · 310 clinicians
Industry payments (Open Payments)
- 2025$1,527 · 91 payments from 17 companies
- 2024$1,016 · 65 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $295.92 | 14 |
| Ucb, Inc. | $201.19 | 12 |
| Janssen Biotech, Inc. | $194.18 | 6 |
| Abbvie Inc. | $193.84 | 18 |
| Arcutis Biotherapeutics, Inc. | $143.37 | 11 |
What the 2025 payments were for
- Food and Beverage$1,427 · 90 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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