NATHANIEL FLETCHER WATSON (MD) – Sleep Medicine (Psychiatry & Neurology) Physician, NPI 1528144342
Sleep Medicine (Psychiatry & Neurology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
590 NEUROLOGY in WA
Provider Addresses for NATHANIEL FLETCHER WATSON (MD)
325 9TH AVE
SEATTLE, WA 981042420
Phone: (206) 520-5000
Type: Location
PO BOX 50095
SEATTLE, WA 981455095
Phone: (206) 520-5700
Type: Mailing
Harborview Medical Center, 325, 9th Avenue, Little Saigon, First Hill, Seattle, King County, Washington, 98104, United States
325 9TH AVE
SEATTLE, WA 98104
Phone: (206) 731-4999
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 51 Open Payments records for all available years, with a total value of $248,250.
Total Amount is formed as General ($238,177) + Research ($10,073) + Ownership ($0) = $248,250.
Last reported payment date: 2024-10-29 • Largest payer in this snapshot: EnsoData, Inc. ($160,000).
Total Amount
$248,250
General + Research + Ownership
Payments
51
Total payment records
General Amount
$238,177
General payments
Research Amount
$10,073
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
1
Ownership records
Last Payment Date
2024-10-29
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| EnsoData, Inc. | $160,000 |
| IDORSIA PHARMACEUTICALS US INC | $63,371 |
| JAZZ PHARMACEUTICALS INC. | $8,776 |
| Takeda Pharmaceuticals U.S.A., Inc. | $7,385 |
| 3B Medical, Inc. | $4,750 |
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: 2010-08-26
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 |
|---|---|---|---|---|
| I20100826001125 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 60 | 53 | $0 |
| 95800 | Sleep study including heart rate, breathing, and sleep time | 57 | 56 | $0 |
| 95810 | Sleep study in sleep lab (6 years or older) | 33 | 33 | $0 |
| 95811 | Sleep study in sleep lab with continuous airway pressure (6 years or older) | 26 | 25 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 12 | 12 | $0 |
Insurance plans in this area (ZIP 98104)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| H E M A T O L O G Y | WA | |
| Infectious Disease | OR | |
| - | WA | |
| - | WA | |
| Family Practice | WA | |
| - | WA | |
| - | WA | |
| - | WA | |
| - | WA | |
| - | WA |
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