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

Holly Sienkiewicz, RN

Individual provider School Registered Nurse · NPI 1578108304

Holly Sienkiewicz, RN is a School Registered Nurse in Livingston, Montana. Licensed in Montana. Registered with an NPI since 2019.

Licensed in
MT
In the registry since
2019
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

102 View Vista Dr
Livingston, MT 59047-3528
Phone: (406) 222-0448
Show map & directions

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

Specialties & licences

School Registered Nurse (primary) Taxonomy 163WS0200X · Licence 73401 (MT)

Record details

NPI number1578108304
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedNovember 15, 2019
Last updated in NPPESNovember 15, 2019
Mailing address102 View Vista Dr, Livingston, MT 59047-3528