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

Mrs. Marissa Ann Ritzenthaler, RN

Individual provider School Registered Nurse · NPI 1023864022

Mrs. Marissa Ann Ritzenthaler, RN is a School Registered Nurse in Klamath Falls, Oregon. Licensed in Oregon. Registered with an NPI since 2024.

Licensed in
OR
In the registry since
2024
Specialties on file
2
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

1336 Avalon St
Klamath Falls, OR 97603-4423
Phone: (541) 591-3409
Show map & directions

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

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence 202209976RN (OR)
School Registered Nurse Taxonomy 163WS0200X · Licence 202209976RN (OR)

Record details

NPI number1023864022
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedApril 29, 2024
Last updated in NPPESMay 1, 2024
Certification dateMay 1, 2024

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