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Allergy/Immunology

Anna E. O'Connor, MD

Sees patients in Austin, TX · Round Rock, TX · Bastrop, TX · Texas

Summary

Anna E. O'Connor, MD (Allergy/Immunology) is enrolled with Medicare at 3 practice locations in Austin, TX, Round Rock, TX and Bastrop, TX. NPI 1053931345. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(512) 732‑2774 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Anna E. O'Connor, 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

3Practice locations
Allergy/ImmunologyPrimary specialty
YesAccepts Medicare assignment
6Years since medical school (graduated 2020)
University Of Mississippi School Of MedicineMedical school
FemaleGender (as listed)
Greater Austin Allergy, Asthma and Immunology PAGroup practice

Quick answers

Where does Anna E. O'Connor see patients?
Medicare's clinician data lists 3 practice locations, including Austin, TX, Round Rock, TX and Bastrop, TX. Call before your visit to confirm the address.
What is Anna E. O'Connor's specialty?
Medicare lists Allergy/Immunology as the primary specialty.
Does Anna E. O'Connor accept Medicare assignment?
Yes. Medicare's clinician data says Anna E. O'Connor 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 Anna E. O'Connor?
(512) 732-2774, as listed in official Medicare / NPI Registry data.
What is Anna E. O'Connor's NPI number?
1053931345. 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 Anna E. O'Connor is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Anna E. O'Connor as a member of this group (CMS data updated 2026-10-02).

  • Greater Austin Allergy, Asthma and Immunology PA9 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Texas →

Other allergist and immunologists in Austin

Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.

All allergist and immunologists in Austin →

Clinician information

CredentialMD
Medical schoolUniversity Of Mississippi School Of Medicine
Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053931345
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