MRS. GWEN JOHANNA GREWE (M.D.) – Internal Medicine Physician, NPI 1326014234
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,474 INTERNAL MEDICINE in OR
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Provider Addresses for MRS. GWEN JOHANNA GREWE (M.D.)
2007, Southwest DeWitt Street, Hillsdale, Portland, Multnomah County, Oregon, 97239, United States
PORTLAND, OR 972392031
Phone: (503) 977-2070
Type: Mailing
Legacy Medical Group, 19875, Southwest 65th Avenue, Tualatin, Metro, Washington County, Oregon, 97062, United States
TUALATIN, OR 970628353
Phone: (503) 692-7785
Fax: (503) 885-1663
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2024-01-18
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20101101000210 | I | Internal Medicine | OR | TBD |
| I20240118000236 | I | Internal Medicine | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 75 | 49 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 16 | 16 | $0 |
Insurance plans in this area (ZIP 97239)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OR | |
| - | OR | |
| - | OR | |
| - | OR | |
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| Family Practice | OR | |
| - | OR | |
| - | LA | |
| Family Practice | OR | |
| - | OR |
Reviews
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