Joann M. Ermer-Seltun, ARNP
NPI 1801998570ActiveIndividual· Nurse Practitioner· Mason City, IA
Nurse Practitioner (ARNP) with North Iowa Mercy Clinics, practicing in Mason City, Iowa. Their prescriptions cost Medicare Part D more than their services did: $98,997 for 390 claims, against $25,935 paid for services in 2024. Coloplast Corp was the largest of 7 companies reporting payments in 2025, $368.90 in all, mostly food and beverage. Lists Mercyone North Iowa Medical Center as a hospital affiliation.
Overview
| NPI | 1801998570 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ARNP |
| Sole proprietor | No |
| NPI issued | Sep 2, 2006 |
| Last updated in NPPES | Jul 9, 2025 |
| Certified by provider | Jul 9, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 072091 | 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 | 164 |
|---|---|
| Services billed | 716 across 27 procedure codes |
| Paid by Medicare | $25,935 |
Part D prescriptions in 2024
| Prescriptions (claims) | 390 · 687 30-day fills |
|---|---|
| Patients | 92 |
| Total drug cost | $98,997 |
| Generic share | 57% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- North Iowa Mercy ClinicsMason City, IA · 302 clinicians
Hospital affiliation
- Mercyone North Iowa Medical CenterMason City, IA
Industry payments (Open Payments)
- 2025$368.90 · 12 payments from 7 companies
- 2024$238.42 · 8 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Coloplast Corp | $119.53 | 1 |
| Organogenesis Inc. | $95.86 | 3 |
| Lifenet Health | $72.23 | 4 |
| Tactile Systems Technology Inc | $26.75 | 1 |
| Hollister Incorporated | $24.98 | 1 |
What the 2025 payments were for
- Food and Beverage$368.90 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 33 nurse practitioners in Mason City · All nurse practitioners in Iowa