DEREK WILLIAM CLARK (M.D.) – Neurocritical Care Physician, NPI 1518283589
Neurocritical Care Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
590 NEUROLOGY in WA
Provider Addresses for DEREK WILLIAM CLARK (M.D.)
PO BOX 25608
SALT LAKE CITY, UT 841250608
Phone: (206) 320-4476
Fax: (206) 568-7043
Type: Mailing
500 17th Ave
Seattle, WA 981225711
Phone: (206) 320-2800
Fax: (206) 320-2827
Type: Location
PO BOX 3158
PORTLAND, OR 972083158
Phone: (503) 215-6494
Type: Mailing
9135 SW BARNES RD STE 461
PORTLAND, OR 972256643
Phone: (503) 216-1150
Type: Location
Swedish Medical Center Cherry Hill Campus, 500, 17th Avenue, Little Saigon, Central District, Seattle, King County, Washington, 98122, United States
SEATTLE, WA 981225711
Phone: (206) 320-2800
Fax: (206) 320-2827
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: 2016-11-05
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 |
|---|---|---|---|---|
| I20140519001422 | I | Neurology | OR | TBD |
| I20161105000116 | I | Neurology | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 66 | 31 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 20 | 19 | $0 |
Insurance plans in this area (ZIP 84125)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | OR | |
| Physician Assistant | OR | |
| - | OR | |
| N E U R O L O G Y | OR | |
| Nurse Practitioner | OR | |
| Infectious Disease, Internal Medicine | OR | |
| Thoracic Surgery | OR | |
| Nurse Practitioner | OR | |
| Physician Assistant | WA | |
| Clinical Psychologist | OR |
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