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Dr. Nathaniel F. Watson, MD

Sleep Medicine (Sleep Medicine (Psychiatry & Neurology) Physician)

325 9th Ave
Seattle, WA 98104

Who else practices at this address →

King County includes primary care (5% of residents) and dental (4% of residents) and mental health (4% of residents) shortage areas. About shortage areas

Call (206) 520-5000

  • Medicare participating

At a glance

Years since graduation
30
In the NPI registry since
2006
Medicare patients seen, 2024
164

Licensed in Washington since 2000, according to the Washington State Department of Health. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1996Medical school: University of North Carolina at Chapel Hill School of Medicine
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Sleep Medicine (Psychiatry & Neurology) Physician primary
    WA license MD00038688 (first issued 2000; active)
  • Neurology Physician
    WA license MD00038688 (first issued 2000; active)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Sleep Medicine per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
164
Services billed
231
Patients’ average age
68
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes6053
Sleep study including heart rate, breathing, and sleep time5756
Sleep study in sleep lab (6 years or older)3333
Sleep study in sleep lab with continuous airway pressure (6 years or older)2625
New patient office or other outpatient visit, 45-59 minutes1212

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Zolpidem Tartrate
Other prescribers in Seattle, WA
26
Modafinil
Other prescribers in Seattle, WA
25

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 5 companies reported 62 payments worth $150,835 in total to this clinician.

By company
Ensodata, Inc.$89,372
Jazz Pharmaceuticals Inc.$35,501
Takeda Pharmaceuticals U.S.A., Inc.$21,648
3b Medical, Inc.$4,250
Harmony Biosciences LLC$65.37
By type
Consulting Fee$133,184
Travel and Lodging$10,369
Compensation for services other than consulting (speaking, faculty)$3,100
Food and Beverage$1,806
Debt forgiveness$1,750
Education$625

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Dec 31, 2025Ensodata, Inc.
Dec 31, 2025
Consulting Fee$80,000
Jul 2, 2025Jazz Pharmaceuticals Inc.
Jul 2, 2025
Consulting Fee
XYWAV · NEUROLOGY
$14,669
Aug 29, 2025Jazz Pharmaceuticals Inc.
Aug 29, 2025
Consulting Fee
XYWAV · NEUROLOGY
$10,668
Dec 6, 2025Takeda Pharmaceuticals U.S.A., Inc.
Dec 6, 2025
Consulting Fee$10,133
Jun 25, 2025Jazz Pharmaceuticals Inc.
Jun 25, 2025
Consulting Fee
XYWAV · NEUROLOGY
$4,890
Jun 5, 2025Takeda Pharmaceuticals U.S.A., Inc.
Jun 5, 2025
Consulting Fee$4,536
Jul 22, 2025Ensodata, Inc.
Jul 22, 2025
Travel and Lodging
travel to Singapore, Singapore · in-kind
$3,164
Jan 14, 2025Jazz Pharmaceuticals Inc.
Jan 14, 2025
Compensation for services other than consulting (speaking, faculty)
XYWAV · NEUROLOGY
$3,100
Apr 22, 2025Takeda Pharmaceuticals U.S.A., Inc.
Apr 22, 2025
Consulting Fee$2,895
Apr 17, 2025Takeda Pharmaceuticals U.S.A., Inc.
Apr 17, 2025
Consulting Fee$2,895
All 30 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Dec 31, 2025Ensodata, Inc.
Dec 31, 2025
Consulting Fee$80,000
Dec 6, 2025Takeda Pharmaceuticals U.S.A., Inc.
Dec 6, 2025
Consulting Fee$10,133
Dec 6, 2025Takeda Pharmaceuticals U.S.A., Inc.
Dec 6, 2025
Travel and Lodging
travel to ROSEMONT, IL · in-kind
$436
Dec 6, 2025Takeda Pharmaceuticals U.S.A., Inc.
Dec 6, 2025
Travel and Lodging
travel to ROSEMONT, IL · in-kind
$227
Dec 6, 2025Takeda Pharmaceuticals U.S.A., Inc.
Dec 6, 2025
Travel and Lodging
travel to ROSEMOUNT, IL · in-kind
$90.11
Dec 5, 2025Takeda Pharmaceuticals U.S.A., Inc.
Dec 5, 2025
Travel and Lodging
travel to ROSEMOUNT, IL · in-kind
$106
Dec 5, 2025Takeda Pharmaceuticals U.S.A., Inc.
Dec 5, 2025
Travel and Lodging
travel to ROSEMOUNT, IL · in-kind
$14.95
Sep 10, 2025Ensodata, Inc.
Sep 10, 2025
Travel and Lodging
travel to Singapore, Singapore · in-kind
$1,808
Sep 8, 2025Ensodata, Inc.
Sep 8, 2025
Travel and Lodging
travel to Singapore, Singapore · in-kind
$434
Aug 30, 2025Ensodata, Inc.
Aug 30, 2025
Travel and Lodging
travel to Cambridge, MA · in-kind
$394
Aug 29, 2025Jazz Pharmaceuticals Inc.
Aug 29, 2025
Consulting Fee
XYWAV · NEUROLOGY
$10,668
Aug 29, 2025Jazz Pharmaceuticals Inc.
Aug 29, 2025
Travel and Lodging
XYWAV · NEUROLOGY · travel to Seattle, WA · in-kind
$64.91
Aug 29, 2025Jazz Pharmaceuticals Inc.
Aug 29, 2025
Travel and Lodging
XYWAV · NEUROLOGY · travel to Seattle, WA · in-kind
$60.00
Aug 29, 2025Jazz Pharmaceuticals Inc.
Aug 29, 2025
Travel and Lodging
XYWAV · NEUROLOGY · travel to Dallas, TX · in-kind
$26.95
Aug 28, 2025Ensodata, Inc.
Aug 28, 2025
Travel and Lodging
travel to Boston, MA · in-kind
$1,452
Aug 13, 2025Ensodata, Inc.
Aug 13, 2025
Travel and Lodging
travel to Madison, WI · in-kind
$1,150
Aug 2, 2025Jazz Pharmaceuticals Inc.
Aug 2, 2025
Travel and Lodging
XYWAV · NEUROLOGY · travel to Southlake, TX · in-kind
$37.70
Aug 1, 2025Jazz Pharmaceuticals Inc.
Aug 1, 2025
Travel and Lodging
XYWAV · NEUROLOGY · travel to Southlake, TX · in-kind
$757
Aug 1, 2025Jazz Pharmaceuticals Inc.
Aug 1, 2025
Travel and Lodging
XYWAV · NEUROLOGY · travel to Southlake, TX · in-kind
$146
Jul 23, 2025Ensodata, Inc.
Jul 23, 2025
Education
in-kind
$625
Jul 22, 2025Ensodata, Inc.
Jul 22, 2025
Travel and Lodging
travel to Singapore, Singapore · in-kind
$3,164
Jul 3, 20253b Medical, Inc.
Jul 3, 2025
Consulting Fee
LUNA · VENTILATOR, NON-CONTINUOUS (RESPIRATOR)
$750
Jul 2, 2025Jazz Pharmaceuticals Inc.
Jul 2, 2025
Consulting Fee
XYWAV · NEUROLOGY
$14,669
Jun 25, 2025Jazz Pharmaceuticals Inc.
Jun 25, 2025
Consulting Fee
XYWAV · NEUROLOGY
$4,890
Jun 5, 2025Takeda Pharmaceuticals U.S.A., Inc.
Jun 5, 2025
Consulting Fee$4,536
Apr 22, 2025Takeda Pharmaceuticals U.S.A., Inc.
Apr 22, 2025
Consulting Fee$2,895
Apr 17, 2025Takeda Pharmaceuticals U.S.A., Inc.
Apr 17, 2025
Consulting Fee$2,895
Apr 2, 20253b Medical, Inc.
Apr 2, 2025
Debt forgiveness
LUNA · VENTILATOR, NON-CONTINUOUS (RESPIRATOR)
$1,750
Jan 14, 2025Jazz Pharmaceuticals Inc.
Jan 14, 2025
Compensation for services other than consulting (speaking, faculty)
XYWAV · NEUROLOGY
$3,100
Jan 9, 20253b Medical, Inc.
Jan 9, 2025
Consulting Fee
LUNA · VENTILATOR, NON-CONTINUOUS (RESPIRATOR)
$1,750

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Washington →

Other Sleep Medicine clinicians in Seattle

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 1, 2026), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1528144342. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.