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

Melvern Patrick O'Brien, RN

Individual provider Addiction (Substance Use Disorder) Registered Nurse · NPI 1043855588

Melvern Patrick O'Brien, RN is an Addiction (Substance Use Disorder) Registered Nurse in Chehalis, Washington. Licensed in Washington. Registered with an NPI since 2019.

Licensed in
WA
In the registry since
2019
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

500 SE Washington Ave
Chehalis, WA 98532-3058
Phone: (509) 232-6755
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Registered Nurse (primary) Taxonomy 163WA0400X · Licence RN00112727 (WA)

Record details

NPI number1043855588
Entity typeIndividual (Type 1)
GenderMale
Credentials RN
Sole proprietorNo
NPI enumeratedNovember 7, 2019
Last updated in NPPESNovember 7, 2019
Mailing address12715 E Mission Ave, Spokane Valley, WA 99216-1027

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