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

Erin Garthwaite, RN

Individual provider Addiction (Substance Use Disorder) Registered Nurse · NPI 1093592818

Erin Garthwaite, RN is an Addiction (Substance Use Disorder) Registered Nurse in South Portland, Maine. Licensed in Maine. Registered with an NPI since 2023.

Licensed in
ME
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.

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Practice location Address checks out

400 Western Ave
South Portland, ME 04106-1704
Phone: (207) 774-7111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Registered Nurse (primary) Taxonomy 163WA0400X · Licence RN84877 (ME)

Record details

NPI number1093592818
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedSeptember 14, 2023
Last updated in NPPESSeptember 14, 2023
Certification dateSeptember 14, 2023

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