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

Mary Ellen Clark-Pienciak, RN

Individual provider Registered Nurse · NPI 1316721194

Mary Ellen Clark-Pienciak, RN is a Registered Nurse in Willow Street, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2023.

Licensed in
PA
In the registry since
2023
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

Practice location Address checks out

750 Willow Valley Lakes Dr
Willow Street, PA 17584
Phone: (717) 464-6200
Fax: (717) 464-6205
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence RN226892-L (PA)

Record details

NPI number1316721194
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedAugust 22, 2023
Last updated in NPPESAugust 22, 2023
Certification dateAugust 21, 2023

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