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

Mark B. Harshfield, PMHNP

Individual provider Adult Psychiatric/Mental Health Registered Nurse · NPI 1073796751

Mark B. Harshfield, PMHNP is an Adult Psychiatric/Mental Health Registered Nurse in Oregon City, Oregon. Licensed in Oregon. Registered with an NPI since 2007.

Licensed in
OR
In the registry since
2007
Specialties on file
3
What do these letters mean?
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.

See every abbreviation used in this directory →

Practice location Address checks out

998 Library Ct
Oregon City, OR 97045-4041
Phone: (503) 655-8401
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 200950073NP (OR)
Adult Psychiatric/Mental Health Registered Nurse Taxonomy 163WP0809X · Licence 200743382RN (OR)
Mental Health Counselor Taxonomy 101YM0800X

Record details

NPI number1073796751
Entity typeIndividual (Type 1)
GenderMale
Credentials PMHNP
Sole proprietorNo
NPI enumeratedDecember 17, 2007
Last updated in NPPESOctober 30, 2013
Mailing address2051 Kaen Rd, Suite 367, Oregon City, OR 97045-4035