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

Dr. Rosamond Claire Valckenier de Greeve, RN, MBA, PHD, MHP

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1740847094

Dr. Rosamond Claire Valckenier de Greeve, RN, MBA, PHD, MHP is an Addiction (Substance Use Disorder) Counselor in Longview, Washington. Licensed in Washington. Registered with an NPI since 2019.

Licensed in
WA
In the registry since
2019
Specialties on file
4
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
MBA — Master of Business Administration
A graduate business degree.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

720 14th Ave
Longview, WA 98632
Phone: (360) 423-0203
Fax: (360) 423-5086
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence CG61450997 (WA)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence CO61362103 (WA)
Psychiatric/Mental Health Registered Nurse Taxonomy 163WP0808X · Licence RN61283114 (WA)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence AP61283128 (WA)

Record details

NPI number1740847094
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , MBA , PHD , MHP
Sole proprietorNo
NPI enumeratedMay 22, 2019
Last updated in NPPESJune 23, 2023
Certification dateJune 23, 2023

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