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Allergy/Immunology

Robert F. Onder Jr., MD

Sees patients in Creve Coeur, MO · Missouri

Summary

Robert F. Onder Jr., MD (Allergy/Immunology) is enrolled with Medicare at 1 practice location in Creve Coeur, MO. NPI 1164533295. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(314) 569‑0510 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Robert F. Onder Jr., joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

1Practice location
Allergy/ImmunologyPrimary specialty
YesAccepts Medicare assignment
39Years since medical school (graduated 1987)
Washington University School Of MedicineMedical school
FemaleGender (as listed)
Allergy and Asthma Consultants, PCGroup practice

Quick answers

Where does Robert F. Onder Jr. see patients?
Medicare's clinician data lists 1 practice location in Creve Coeur, MO. Call before your visit to confirm the address.
What is Robert F. Onder Jr.'s specialty?
Medicare lists Allergy/Immunology as the primary specialty, and also Internal Medicine.
Does Robert F. Onder Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Robert F. Onder Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Robert F. Onder Jr.?
(314) 569-0510, as listed in official Medicare / NPI Registry data.
What is Robert F. Onder Jr.'s NPI number?
1164533295. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Robert F. Onder Jr. is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Robert F. Onder Jr. as a member of this group (CMS data updated 2026-10-02).

  • Allergy and Asthma Consultants, PC3 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Missouri →

Other allergist and immunologists in Missouri

Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.

All allergist and immunologists in Missouri →

Clinician information

CredentialMD
Medical schoolWashington University School Of Medicine
Graduation year1987
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1164533295
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians