Erin Elizabeth Diem, FNP
NPI 1588190755ActiveIndividual· Nurse Practitioner, Family· Greensburg, IN
Nurse Practitioner, Family (FNP) with Decatur County Memorial Hospital and 1 other group, practicing in Greensburg, Indiana. 108 Medicare patients in 2024, $8,367 paid; nearly all of their 190 Part D prescriptions were generic (92%). Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $1,705 in all, mostly food and beverage. Lists Ascension St Vincent Jennings and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1588190755 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | May 10, 2017 |
| Last updated in NPPES | Mar 24, 2026 |
| Certified by provider | Mar 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 71007568A | IN |
| Registered Nurse | 163W00000X | 1111959 | KY |
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 (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 108 |
|---|---|
| Services billed | 152 across 12 procedure codes |
| Paid by Medicare | $8,367 |
Part D prescriptions in 2024
| Prescriptions (claims) | 190 · 196 30-day fills |
|---|---|
| Patients | 125 |
| Total drug cost | $1,747 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Decatur County Memorial HospitalGreensburg, IN · 129 clinicians
- Medical Group of Indiana LLCMuncie, IN · 9 clinicians
Hospital affiliations
- Ascension St Vincent JenningsNorth Vernon, IN
- Columbus Regional HospitalColumbus, IN
- Decatur County Memorial HospitalGreensburg, IN
- Major HospitalShelbyville, IN
- Margaret Mary Community Hospital IncBatesville, IN
Industry payments (Open Payments)
- 2025$1,705 · 98 payments from 11 companies
- 2024$74.36 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $405.79 | 35 |
| Janssen Biotech, Inc. | $343.10 | 11 |
| Amgen Inc. | $247.63 | 9 |
| Mallinckrodt Hospital Products Inc. | $195.19 | 9 |
| Pfizer Inc. | $192.58 | 17 |
What the 2025 payments were for
- Food and Beverage$1,500 · 95 payments
- Education$204.98 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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