Alphonse Michael Mysiewicz, R.N.
Registered Nurse · Seattle, WA
Alphonse Michael Mysiewicz, R.N. is a registered nurse with a practice address in Seattle, Washington, and NPI 1134455546, issued on Oct 20, 2009. Check the license (Washington RN00103964, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Alphonse Michael Mysiewicz
- Credential
- R.N.
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- RN00103964 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2200 6TH Ave, Seattle, WA 98121
- Phone
- (206) 448-3255
- Enumerated
- Oct 20, 2009
- Record last updated
- Oct 20, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (800) 882-7527
- Entity
- Type 1 · individual
Also registered at 2200 6TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carrie Stiver, D.C.Chiropractor1043362726
- Julie Wilson, M.A., L.M.H.C.AMental Health Counselor1265865695
Verify Alphonse Michael Mysiewicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license RN00103964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
941 registered nurse records list a practice address in Seattle
They are 941 of the 41,956 NPPES records with a practice address in Seattle, and 5,708 registered nurse records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 941 in Seattle → All 5,708 in Washington → Every provider in Seattle →
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Common questions
What is Alphonse Michael Mysiewicz, R.N.'s NPI number?
Alphonse Michael Mysiewicz, R.N.'s National Provider Identifier (NPI) is 1134455546, issued on Oct 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Alphonse Michael Mysiewicz, R.N. located?
The NPPES record lists a practice address at 2200 6TH Ave, Seattle, WA, 98121. Phone: (206) 448-3255. Providers update this record themselves, so call before visiting.
How can I verify Alphonse Michael Mysiewicz, R.N.'s license?
NPPES lists Washington license number RN00103964, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
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.