Gwen Johanna Grewe, M.D.
NPI 1326014234ActiveIndividual· Internal Medicine· Tualatin, OR
Internal Medicine (M.D.) with Legacy Meridian Park Hospital, practicing in Tualatin, Oregon. Their prescriptions cost Medicare Part D more than their services did: $122,067 for 2,082 claims, against $7,052 paid for services in 2024. Lists Legacy Good Samaritan Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1326014234 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 28, 2006 |
| Last updated in NPPES | Feb 18, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD21373 | OR |
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 - Internal Medicine (OR); Practitioner - Internal Medicine (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 60 |
|---|---|
| Services billed | 200 across 10 procedure codes |
| Paid by Medicare | $7,052 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,082 · 5,360 30-day fills |
|---|---|
| Patients | 147 |
| Total drug cost | $122,067 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Legacy Meridian Park HospitalTualatin, OR · 115 clinicians
Hospital affiliations
- Legacy Good Samaritan Medical CenterPortland, OR
- Legacy Meridian Park Medical CenterTualatin, OR
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 internal medicine physicians in Tualatin · All internal medicine physicians in Oregon