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

Mr. Mark Hadley, PMHNP-BC

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1457294449

Mr. Mark Hadley, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner in Washougal, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2026
What do these letters mean?
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

See every abbreviation used in this directory →

Practice location Address checks out

82 Washougal River Rd Ste 114
Washougal, WA 98671-2377
Phone: (360) 688-3936
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 AP70093900 (WA)

Record details

NPI number1457294449
Entity typeIndividual (Type 1)
GenderMale
Credentials PMHNP-BC
Sole proprietorYes
NPI enumeratedApril 13, 2026
Last updated in NPPESApril 13, 2026
Certification dateApril 13, 2026