DEREK S HALVORSON (MD) – Emergency Medicine Physician, NPI 1740234996
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,206 EMERGENCY MEDICINE in WA
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Provider Addresses for DEREK S HALVORSON (MD)
5037, Southwest Hilltop Lane, Green Hills, Southwest Hills, Portland, Metro, Multnomah County, Oregon, 97221, United States
UNIT 282
PORTLAND, OR 972085037
Phone: (360) 514-2142
Fax: (360) 514-6820
Type: Mailing
600, Northeast 92nd Avenue, Vancouver, Clark County, Washington, 98664, United States
VANCOUVER, WA 986643225
Phone: (360) 514-2142
Fax: (360) 514-6820
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: 2007-08-14
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20070814000596 | I | Emergency Medicine | OR | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 128 | 125 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 65 | 64 | $0 |
| 99291 | Critical care, first 30-74 minutes | 25 | 25 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 20 | 20 | $0 |
Insurance plans in this area (ZIP 97208)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hospitalist, Internal Medicine | OR | |
| Medical Oncology, Hematology | FL | |
| Cardiovascular Disease (Cardiology), Interventional Cardiology | OH | |
| Hospitalist, Internal Medicine | OR | |
| - | OR | |
| E N D O C R I N O L O G Y | OR | |
| General Surgery | OR | |
| P A T H O L O G Y | OR | |
| - | OR | |
| Nurse Practitioner | OR |
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