Agnes Errihani, NP
NPI 1619574084ActiveIndividual· Nurse Practitioner· Munster, IN
Nurse Practitioner (NP) with Dr Mary Tilak PC, practicing in Munster, Indiana. Their prescriptions cost Medicare Part D more than their services did: $886,187 for 2,811 claims, against $143,379 paid for services in 2024. Electromed, Inc. was the largest of 16 companies reporting payments in 2025, $747.99 in all, mostly food and beverage. Lists Community Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1619574084 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | Yes |
| NPI issued | Oct 7, 2020 |
| Last updated in NPPES | Oct 7, 2020 |
| Certified by provider | Oct 7, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 71010447A | IN |
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 (IL); Practitioner - Nurse Practitioner (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 731 |
|---|---|
| Services billed | 2,697 across 36 procedure codes |
| Paid by Medicare | $143,379 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,811 · 4,203 30-day fills |
|---|---|
| Patients | 565 |
| Total drug cost | $886,187 |
| Generic share | 61% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Dr Mary Tilak PCCrown Point, IN · 10 clinicians
Hospital affiliations
- Community HospitalMunster, IN
- St Catherine Hospital IncEast Chicago, IN
- St Mary Medical Center IncHobart, IN
Other facilities
- Powers Health Rehabilitation CenterInpatient rehabilitation facility · Crown Point, IN
Industry payments (Open Payments)
- 2025$747.99 · 34 payments from 16 companies
- 2024$2,242 · 102 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Electromed, Inc. | $101.69 | 8 |
| Grifols USA, LLC | $82.20 | 3 |
| Regeneron Healthcare Solutions, Inc. | $76.91 | 2 |
| Astrazeneca Pharmaceuticals LP | $59.98 | 3 |
| Axsome Therapeutics, Inc. | $56.34 | 2 |
What the 2025 payments were for
- Food and Beverage$747.99 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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