Tyler David Greshow, NP-C
NPI 1265070866ActiveIndividual· Nurse Practitioner· Lansing, MI
Nurse Practitioner (NP-C) with Edward W Sparrow Hospital Association and 1 other group, practicing in Lansing, Michigan. Mostly services rather than prescriptions: Medicare paid $15,658 for 158 patients in 2024, with only 31 Part D claims. Penumbra, Inc. was the largest of 7 companies reporting payments in 2025, $2,951 in all, mostly food and beverage. Lists Edward W Sparrow Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1265070866 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP-C |
| Sole proprietor | No |
| NPI issued | Dec 13, 2019 |
| Last updated in NPPES | Jan 15, 2020 |
| Certified by provider | Jan 15, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 4704296889 | MI |
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 (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 158 |
|---|---|
| Services billed | 238 across 20 procedure codes |
| Paid by Medicare | $15,658 |
Part D prescriptions in 2024
| Prescriptions (claims) | 31 · 33 30-day fills |
|---|---|
| Patients | 19 |
| Total drug cost | $936.74 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Edward W Sparrow Hospital AssociationLansing, MI · 730 clinicians
- Vituity - Michigan Hospitalists PCLansing, MI · 78 clinicians
Hospital affiliations
- Edward W Sparrow HospitalLansing, MI
- University of Michigan Health - Sparrow EatonCharlotte, MI
Industry payments (Open Payments)
- 2025$2,951 · 37 payments from 7 companies
- 2024$2,632 · 18 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Penumbra, Inc. | $2,713 | 25 |
| Boston Scientific Corporation | $103.60 | 5 |
| Sirtex Medical Inc | $58.61 | 3 |
| Bard Peripheral Vascular, Inc. | $26.45 | 1 |
| Paratek Pharmaceuticals, Inc. | $17.75 | 1 |
What the 2025 payments were for
- Food and Beverage$1,522 · 32 payments
- Travel and Lodging$1,429 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 70 nurse practitioners in Lansing · All nurse practitioners in Michigan