MARY KATHERINE SIEMON RN ARNP
NPI 1891802641
Nurse Practitioner in Seattle, WA
About Mary Katherine Siemon Rn Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY KATHERINE SIEMON RN ARNP (NPI 1891802641) is an individual nurse practitioner in Seattle, Washington, licensed in Washington (AP30004897) and active in the NPI registry since August 2006.
NPPES Registry Identity
Specialties & Licenses 2
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98109
SEATTLE, WA 98109
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mary Siemon's NPI number?
The NPI number for Mary Siemon is 1891802641. It was assigned to this individual provider in the NPPES registry on August 25, 2006.
Where is Mary Siemon located?
Mary Siemon practices at 180 Nickerson St Ste 303, Seattle, WA 98109. The listed phone number is (206) 284-8963.
What is Mary Siemon's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
When was this NPI record last updated?
The NPPES record for Mary Siemon was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
