Doctor profile · Federal record

Dr. Nathaniel Clark, DO

Emergency Medical Services (Emergency Medicine) Physician (CMS: Emergency Medicine) · Seattle, WA

  • NPI 1144291360
  • Accepts Medicare
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
201 16Th Ave E
Seattle, WA 981125226
(206) 326-3000
fax (206) 326-2785

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
March 31, 2021
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207PE0004X — NUCC code
State license (1)
Washington #OP00002070

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144291360. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,400
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Fujifilm Sonosite, INC. 1 $700.00
Verathon INC. 1 $700.00

By nature of payment

Consulting Fee
$1,400

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
78
Patients
51
Total drug cost
$746
Drug Type Claims Patients Total cost
Cefuroxime (Cefuroxime Axetil) Brand 25 25 $284
Prednisone Generic 16 15 $127
Famotidine Generic 14 0 $76
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 12 11 $180
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 11 0 $79

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathaniel Clark's medical specialty?
Dr. Nathaniel Clark practices Emergency Medical Services (Emergency Medicine) Physician in Seattle, WA.
Where does Dr. Nathaniel Clark practice?
Dr. Nathaniel Clark practices at 201 16Th Ave E, Seattle, WA 981125226. Office phone: 2063263000.
What is Dr. Nathaniel Clark's NPI?
Dr. Nathaniel Clark's National Provider Identifier (NPI) is 1144291360, issued by NPPES.
Does Dr. Nathaniel Clark accept Medicare assignment?
Yes. Dr. Nathaniel Clark accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.