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

Melissa Helgeson PLLC

Organization Psychiatric/Mental Health Nurse Practitioner · NPI 1508722265

Melissa Helgeson PLLC is a Psychiatric/Mental Health Nurse Practitioner in Longview, Washington. Registered with an NPI since 2025.

In the registry since
2025
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

166 Monticello Dr
Longview, WA 98632-9543
Phone: (208) 360-0299
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X

Record details

NPI number1508722265
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Melissa Helgeson — Psychiatric Nurse Practitioner · (208) 360-0299
NPI enumeratedDecember 26, 2025
Last updated in NPPESDecember 26, 2025
Certification dateDecember 26, 2025
Mailing address166 Monticello Dr, Longview, WA 98632-9543

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