Marianne H. Yacyshyn, MD
Neurology Physician · Seattle, WA
Marianne H. Yacyshyn, MD is a neurology physician with a practice address in Seattle, Washington, and NPI 1184158875, issued on Apr 19, 2017. Check the license (Washington MD61140064, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Marianne H. Yacyshyn
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- MD61140064 WA
Self-reported in NPPES; status is on the state search - Practice location
- 500 17TH Ave, Seattle, WA 98122
- Phone
- (206) 320-2800
- Enumerated
- Apr 19, 2017
- Record last updated
- Aug 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (206) 320-2827
- Medicare enrollment
- Enrolled (PECOS I20210616003297); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 489 in Washington → Look up another NPI →
Also registered at 500 17TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ronen Blecher, MDOrthopaedic Surgery of the Spine Physician1417470345
Verify Marianne H. Yacyshyn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61140064Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Swedish Health ServicesSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marianne H. Yacyshyn among 489 neurology physician records in Washington
Marianne H. Yacyshyn, 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. Its NPI, issued in 2017, is newer than 84% of them.
- NPI issued2017 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2017 · median 2007 among the 351 with a school on file
- Record last updated2021 · 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.
All 489 in Washington → Every provider in Seattle → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Lisa Caylor, MDSeattle, WA 981221124108048
- Michael Doherty, MDSeattle, WA 981221033299953
- Michael Elliott, MDSeattle, WA 981221518986199
- Eric Gierke, MDSeattle, WA 981221265537583
- Steven Hamilton, MDSeattle, WA 981221669409694
- Lily Henson, MDSeattle, WA 981221639252661
- Pravin Khemani, MDSeattle, WA 981221457360836
- Dongmei Liu, MDSeattle, WA 981221679678791
Common questions
What is Marianne H. Yacyshyn, MD's NPI number?
Marianne H. Yacyshyn, MD's National Provider Identifier (NPI) is 1184158875, issued on Apr 19, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Marianne H. Yacyshyn, MD located?
The NPPES record lists a practice address at 500 17TH Ave, Seattle, WA, 98122. Phone: (206) 320-2800. Providers update this record themselves, so call before visiting.
How can I verify Marianne H. Yacyshyn, MD's license?
NPPES lists Washington license number MD61140064, 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. Medicare files from data.cms.gov. 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.