DR. NATHANIEL WISE CLARK (DO) – Emergency Medical Services (Emergency Medicine) Physician, NPI 1144291360
Emergency Medical Services (Emergency Medicine) Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
1,206 EMERGENCY MEDICINE in WA
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Provider Addresses for DR. NATHANIEL WISE CLARK (DO)
Kaiser Permanente Capitol Hill Campus, 201, 16th Avenue East, Capitol Hill, Seattle, King County, Washington, 98112, United States
SEATTLE, WA 981125226
Phone: (206) 326-3000
Fax: (206) 326-2785
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $2,100.
Total Amount is formed as General ($2,100) + Research ($0) + Ownership ($0) = $2,100.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Verathon Inc. ($700).
Total Amount
$2,100
General + Research + Ownership
Payments
3
Total payment records
General Amount
$2,100
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Verathon Inc. | $700 |
| FUJIFILM Sonosite, Inc. | $700 |
| FUJIFILM SonoSite, Inc. | $700 |
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: 2007-07-19
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 |
|---|---|---|---|---|
| I20070719000287 | I | Emergency 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 98112)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WA | |
| - | WA | |
| Family Practice | WA | |
| - | WA | |
| - | OH | |
| O P H T H A L M O L O G Y | WA | |
| Family Practice | WI | |
| Internal Medicine | OR | |
| Clinical Social Worker | WA | |
| - | WA |
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