Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Kathleen A Witmer, ARNP

Individual provider Nurse Practitioner · NPI 1457415499

Kathleen A Witmer, ARNP is a Nurse Practitioner in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

Practice location Address checks out

1221 Madison St Ste 400
Seattle, WA 98104-3588
Phone: (206) 215-6400
Fax: (206) 215-6401
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X (WA)

Record details

NPI number1457415499
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedDecember 21, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1221 Madison St, Ste 400, Seattle, WA 98104-3588

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