Katrina Stoffel, ARNP
NPI 1336556844ActiveIndividual· Nurse Practitioner· Waterloo, IA
Nurse Practitioner (ARNP) with Allen Memorial Hospital Corporation, practicing in Waterloo, Iowa. 157 Medicare patients in 2024, $14,054 paid; nearly all of their 156 Part D prescriptions were generic (96%). Lists Allen Hospital as a hospital affiliation.
Overview
| NPI | 1336556844 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ARNP |
| Sole proprietor | No |
| NPI issued | Jul 16, 2014 |
| Last updated in NPPES | Feb 22, 2023 |
| Certified by provider | Feb 22, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | A128143 | 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 | 157 |
|---|---|
| Services billed | 168 across 11 procedure codes |
| Paid by Medicare | $14,054 |
Part D prescriptions in 2024
| Prescriptions (claims) | 156 · 157 30-day fills |
|---|---|
| Patients | 115 |
| Total drug cost | $1,545 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Allen Memorial Hospital CorporationWaterloo, IA · 157 clinicians
Hospital affiliation
- Allen HospitalWaterloo, IA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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