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DR. COURTNEY RACHELLE JACOB KAAR MD
NPI 1871024760
Pediatrics - Pediatric Pulmonology in Saint Louis, MO

Active since March 23, 2017PECOS Enrolled
1 CHILDRENS PL, DIV PED ALLERGY/IMMUNO/PULMO, SAINT LOUIS, MO 63110(314) 454-2694(314) 454-2515 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Aug 30, 2023 and 3 more (6 updates tracked since 2017).

About Dr. Courtney Rachelle Jacob Kaar Md NPPES

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

DR. COURTNEY RACHELLE JACOB KAAR MD (NPI 1871024760) is an individual pediatric pulmonology provider in Saint Louis, Missouri, licensed in Missouri (2020009898) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871024760
Entity TypeIndividualFemale
Primary Taxonomy2080P0214X
Provider Legal NameDR. COURTNEY RACHELLE JACOB KAARCredential: MD
Location Address1 CHILDRENS PL, DIV PED ALLERGY/IMMUNO/PULMOSaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-2694 · Fax (314) 454-2515
Phone(314) 454-2694
Fax(314) 454-2515
Sole ProprietorNo
Enumeration DateMarch 23, 2017
Last NPPES UpdateApril 17, 20256 updates tracked since enumeration
NPPES CertifiedNovember 9, 2021
✔ NPI 1871024760 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric PulmonologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0214X
License✔ Licensed in MO · 2020009898
Definition
A pediatrician dedicated to the prevention and treatment of all respiratory diseases affecting infants, children and young adults. This specialist is knowledgeable about the growth and development of the lung, assessment of respiratory function in infants and children, and experienced in a variety of invasive and noninvasive diagnostic techniques.
Also ListedPediatricsTaxonomy 208000000X · License 2020009898 (MO)
1 CHILDRENS PL, Saint Louis, MO 63110
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Other Identifiers 1

Medicaid200043513MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Courtney Rachelle Jacob Kaar Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Courtney Kaar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Washington University
Same address
Multi-Specialty
1 CHILDRENS PL
Saint Louis, MO 63110
  • Reassigned Medicare billing, Missouri enrollment
  • 628 clinicians in this Medicare group
NPI 1194765685 (314) 286-1264

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Referred Medical Equipment & Supplies CMS DME claims 9

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
3 suppliers16 claims16 services$29.81 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
4 suppliers12 claims12 services$65.75 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
5 suppliers12 claims35 services$24.47 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
2 suppliers14 claims14 services$48.17 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
5 suppliers16 claims16 services$13.75 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
6 suppliers31 claims175 services$1.73 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

ARIE BAKER MSW, LCSW
Social Worker (Clinical)
1 CHILDRENS PL, CAMPUS BOX 8116
SAINT LOUIS, MO 63110
St. Louis City (314) 747-6169
SUSAN CHEUNG WALSH AUD
Audiologist-Hearing Aid Fitter
1 CHILDRENS PL
SAINT LOUIS, MO 63110
St. Louis City (314) 454-4649
MS. JENNIFER MARIE JACOBI PNP
Nurse Practitioner (Pediatrics)
1 CHILDRENS PL, DEPT NEUROLOGICAL SURGERY, STE 4E
SAINT LOUIS, MO 63110
St. Louis City (314) 362-3577
MS. EMILY LINCOLN RN, NNP-BC
Nurse Practitioner (Neonatal, Critical Care)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
St. Louis City (314) 454-6000
MS. MARISSA ROSE PEREZ-MAGNELLI PNP
Nurse Practitioner (Pediatrics)
1 CHILDRENS PL, DEPT NEUROLOGY, STE 2130
SAINT LOUIS, MO 63110
St. Louis City (314) 454-6120
MRS. BRIANNA LYNN RICHTER NNP-BC
Nurse Practitioner (Neonatal)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
St. Louis City (314) 454-6000
DR. WILLIAM L RIVES MD
Hospitalist
1 CHILDRENS PL, DIV PED HOSPITALIST MED
SAINT LOUIS, MO 63110
St. Louis City (314) 454-2076
DR. PETER M KILBRIDGE MD
Pediatrics
1 CHILDRENS PL, SUITE C
SAINT LOUIS, MO 63110
St. Louis City (314) 454-2479

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 Courtney Kaar's NPI number?

The NPI number for Courtney Kaar is 1871024760. It was assigned to this individual provider in the NPPES registry on March 23, 2017.

Where is Courtney Kaar located?

Courtney Kaar practices at 1 Childrens Pl Div Ped Allergy/Immuno/Pulmo, Saint Louis, MO 63110. The listed phone number is (314) 454-2694.

What is Courtney Kaar's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Pulmonology, with taxonomy code 2080P0214X.

Is Courtney Kaar enrolled in Medicare?

Yes. Courtney Kaar is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Courtney Kaar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Courtney Kaar reassigns Medicare benefits to Washington University (Saint Louis, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Courtney Kaar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Courtney Kaar accept?

Health plans from Cox HealthPlans and UnitedHealthcare list Courtney Kaar 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 Courtney Kaar 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 18 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.