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

Joyce Marth Knestrick, PHD, FNP

Individual provider Family Nurse Practitioner · NPI 1861508855

Joyce Marth Knestrick, PHD, FNP is a Family Nurse Practitioner in Washington, Pennsylvania. Licensed in Pennsylvania and West Virginia. Registered with an NPI since 2006.

Licensed in
PA, WV
In the registry since
2006
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

Practice location Address checks out

801 Alamae Lakes Rd
Washington, PA 15301-9150
Phone: (724) 222-7018
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence SP002270B (PA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 37115 (WV)

Record details

NPI number1861508855
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , FNP
Sole proprietorNo
NPI enumeratedAugust 22, 2006
Last updated in NPPESJuly 8, 2007

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