William Roy Swanke, MD
Neurology Physician · Marysville, WA
William Roy Swanke, MD is a neurology physician with a practice address in Marysville, Washington, and NPI 1821290974, issued on Jun 1, 2007. Check the license (Washington MD00029231, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Roy Swanke
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- MD00029231 WA
M9229 ID
G16633 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15414 Smokey PT Blvd, Marysville, WA 98271
- Phone
- (360) 387-9544
- Enumerated
- Jun 1, 2007
- Record last updated
- Sep 11, 2025
- Fax
- (360) 387-8884
- Medicaid ID
- 1072263 WA
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 489 in Washington → Look up another NPI →
Verify William Roy Swanke in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00029231Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Roy Swanke among 489 neurology physician records in Washington
William Roy Swanke, MD is one of 489 neurology physician records with a practice address in Washington. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 49% newer
- In a Medicare fileNo · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Washington
There are 489 neurology physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 489 in Washington → Every provider in Marysville → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Patti Brettell, M.D.Mount Vernon, WA 982741215998125
- Bhuvanaprasad Mandalapu, MDMount Vernon, WA 982741881639581
- Amir Mazhari, MDMount Vernon, WA 982741396795530
- Kathryn Roberts, M.D.Mount Vernon, WA 982741487924254
- Donald Bright, M.D.Bremerton, WA 983101366441040
- Josh Duckworth, M.D.Bremerton, WA 983121194797647
- Eric Krueger, MDBremerton, WA 983121629530886
- Zachary Webb, M.D.Bellingham, WA 982291063426146
Common questions
What is William Roy Swanke, MD's NPI number?
William Roy Swanke, MD's National Provider Identifier (NPI) is 1821290974, issued on Jun 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Roy Swanke, MD located?
The NPPES record lists a practice address at 15414 Smokey PT Blvd, Marysville, WA, 98271. Phone: (360) 387-9544. Providers update this record themselves, so call before visiting.
How can I verify William Roy Swanke, MD's license?
NPPES lists Washington license number MD00029231, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.