MS. IRENE MARION RATHJEN PNP
NPI 1447629464
Nurse Practitioner - Pediatrics in Saint Louis, MO

Active since September 21, 2015PECOS EnrolledAccepts Medicare Assignment
1 CHILDRENS PL, DIV PED GENETICS AND GENOMIC MED, SAINT LOUIS, MO 63110(314) 454-6093(844) 965-9624 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Feb 8, 2023 (3 updates tracked since 2023).

About Ms. Irene Marion Rathjen Pnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. IRENE MARION RATHJEN PNP (NPI 1447629464) is an individual pediatrics provider in Saint Louis, Missouri, licensed in Missouri (2015016091) and active in the NPI registry since September 2015. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1447629464
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameMS. IRENE MARION RATHJENCredential: PNP
Location Address1 CHILDRENS PL, DIV PED GENETICS AND GENOMIC MEDSaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-6093 · Fax (844) 965-9624
Fax(844) 965-9624
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateSeptember 21, 2015
Last NPPES UpdateApril 17, 20253 updates tracked since enumeration
NPI 1447629464 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License Licensed in MO · 2015016091
1 CHILDRENS PL, Saint Louis, MO 63110

Other Identifiers 1

Medicaid420033957MO

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Ms. Irene Marion Rathjen Pnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3678867553
PECOS Enrollment IDI20160816001545
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
1 CHILDRENS PL, CAMPUS BOX 8116
SAINT LOUIS, MO 63110
Audiologist-Hearing Aid Fitter
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Nurse Practitioner (Pediatrics)
1 CHILDRENS PL, DEPT NEUROLOGICAL SURGERY, STE 4E
SAINT LOUIS, MO 63110
Nurse Practitioner (Neonatal, Critical Care)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Nurse Practitioner (Pediatrics)
1 CHILDRENS PL, DEPT NEUROLOGY, STE 2130
SAINT LOUIS, MO 63110
Hospitalist
1 CHILDRENS PL, DIV PED HOSPITALIST MED
SAINT LOUIS, MO 63110
Pediatrics
1 CHILDRENS PL, SUITE C
SAINT LOUIS, MO 63110
Pediatrics (Pediatric Hematology-Oncology)
1 CHILDRENS PL, DIV PED HEMATOLOGY AND ONC, STE 9S
SAINT LOUIS, MO 63110

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Irene Rathjen's NPI number?

The NPI number for Irene Rathjen is 1447629464. It was assigned to this individual provider in the NPPES registry on September 21, 2015.

Where is Irene Rathjen located?

Irene Rathjen practices at 1 Childrens Pl Div Ped Genetics And Genomic Med, Saint Louis, MO 63110. The listed phone number is (314) 454-6093.

What is Irene Rathjen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Irene Rathjen enrolled in Medicare?

Yes. Irene Rathjen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Irene Rathjen accept?

Health plans from Medica and UnitedHealthcare list Irene Rathjen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Irene Rathjen was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.