Doctor profile · Federal record

Dr. W Longstreth

Neurology Physician (CMS: Neurology) · Seattle, WA

  • NPI 1033299037
  • Accepts Medicare
  • MIPS 87.0 / 100 · 2023
  • 51 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Harborview Medical Center, 325 9Th Ave
Seattle, WA 98104
(206) 731-3992
Mailing address
Po Box 50095
Seattle, WA 981455095

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
January 12, 2012
Year of graduation
1975 — 51 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State license (1)
Washington #MD00015423
Medicaid
WA #1033299037

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1033299037. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
65
Distinct HCPCS
2
Medicare allowed
$7,526
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 46 36 $105
99204 New patient office or other outpatient visit, 45-59 minutes 19 19 $143

In context: peer comparison

Among 69 peers in this city , average services per provider: 359. This provider delivers 0.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
162
Patients
0
Total drug cost
$12,920
Drug Type Claims Patients Total cost
Lacosamide Generic 46 0 $9,392
Lamotrigine Generic 40 0 $827
Levetiracetam Generic 40 0 $1,221
Divalproex Sodium Generic 14 0 $179
Pregabalin Generic 11 0 $728
Zonisamide Generic 11 0 $573

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. W Longstreth's medical specialty?
Dr. W Longstreth practices Neurology Physician in Seattle, WA.
Where does Dr. W Longstreth practice?
Dr. W Longstreth practices at Harborview Medical Center, Seattle, WA 98104. Office phone: 2067313992.
What is Dr. W Longstreth's NPI?
Dr. W Longstreth's National Provider Identifier (NPI) is 1033299037, issued by NPPES.
Does Dr. W Longstreth accept Medicare assignment?
Yes. Dr. W Longstreth accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. W Longstreth commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.