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

Carole Mary Siefken, ARNP

Individual provider Psychiatric/Mental Health Registered Nurse · NPI 1548346026

Carole Mary Siefken, ARNP is a Psychiatric/Mental Health Registered Nurse in Richland, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2006
Specialties on file
2
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

1305 Mansfield St Ste 5
Richland, WA 99352-3588
Phone: (509) 943-0990
Fax: (509) 943-0040
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence AP30003275 (WA)
Psychiatric/Mental Health Registered Nurse Taxonomy 163WP0808X · Licence RN00046264 (WA)

Record details

NPI number1548346026
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorYes
NPI enumeratedOctober 27, 2006
Last updated in NPPESJuly 25, 2012

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