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

Katherine Helfinstine, RN

Individual provider Registered Nurse · NPI 1811310832

Katherine Helfinstine, RN is a Registered Nurse in Phoenix, Arizona. Practices as a sole proprietor. Licensed in Arizona.

Licensed in
AZ
In the registry since
2014
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

650 E Indian School Rd
Phoenix, AZ 85012-1839
Phone: (602) 277-5551
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence RN167163 (AZ)

Record details

NPI number1811310832
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorYes
NPI enumeratedJanuary 27, 2014
Last updated in NPPESJanuary 27, 2014
Mailing address501 W Diana Ave, Phoenix, AZ 85021-4534

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