Sharon Greiner, MSN, CNM ,FNP-BC
NPI 1477218444ActiveIndividual· Advanced Practice Midwife· Merrillville, IN
Advanced Practice Midwife (MSN, CNM ,FNP-BC) with Midwest Express Care 4 LLC and 1 other group, practicing in Merrillville, Indiana. 54 Medicare patients in 2024, $3,726 paid; nearly all of their 124 Part D prescriptions were generic (94%). Biogen, Inc. reported $18.44 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1477218444 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MSN, CNM ,FNP-BC |
| Sole proprietor | No |
| NPI issued | Nov 4, 2021 |
| Last updated in NPPES | Sep 12, 2024 |
| Certified by provider | Sep 12, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Advanced Practice Midwife Primary | 367A00000X | 09000477A | IN |
| Nurse Practitioner, Family | 363LF0000X | 71012214A | IN |
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 | 54 |
|---|---|
| Services billed | 210 across 27 procedure codes |
| Paid by Medicare | $3,726 |
Part D prescriptions in 2024
| Prescriptions (claims) | 124 · 133 30-day fills |
|---|---|
| Patients | 83 |
| Total drug cost | $1,352 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Midwest Express Care 4 LLCHammond, IN · 63 clinicians
- Northshore Health Centers IncLake Station, IN · 33 clinicians
Industry payments (Open Payments)
- 2025$18.44 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biogen, Inc. | $18.44 | 1 |
What the 2025 payments were for
- Food and Beverage$18.44 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other certified nurse midwives in Merrillville
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