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

MS. Irene Marion Rathjen, PNP

Individual provider Pediatric Nurse Practitioner · NPI 1447629464

MS. Irene Marion Rathjen, PNP is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2014, 12 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
12
Licensed in
MO
In the registry since
2015
What do these letters mean?
PNP — Pediatric Nurse Practitioner
A nurse practitioner specialising in children.

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Practice location Address checks out

1 Childrens Pl Div Ped Genetics And Genomic Med
Saint Louis, MO 63110-1002
Phone: (314) 454-6093
Fax: (844) 965-9624
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Nurse Practitioner (primary) Taxonomy 363LP0200X · Licence 2015016091 (MO)

Record details

NPI number1447629464
Entity typeIndividual (Type 1)
GenderFemale
Credentials PNP
Sole proprietorNo
NPI enumeratedSeptember 21, 2015
Last updated in NPPESApril 17, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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