NPI age
6 years
Enumerated 2020-04-16
● Active
Type 1 · Individual
DR. Anna Elizabeth O'Connor, MD
O'Connor is 1 of 10 allergy & immunology providers in Round Rock and 1 of 506 in Texas.
Primary specialty
Allergy & Immunology
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-05-15
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 506 active allergy & immunology providers in Texas.
NPI age
6 years
↓ 13 yr below median (19 yr)
State licenses
1 state
9% of peers hold multiple states
Subspecialties
1
In the 28% of peers with subspecialties
NPI lifetime · 2020 → 2026
2020-04Enumerated in NPPES
2020
2026
Where they practice
Practice location
303 E Main St
Round Rock, TX 786645246
Mailing address
303 E Main St
Round Rock, TX 786645246
Additional practice locations
8 secondary locations on file with NPPES.
Location 2
5656 Bee Caves Rd Ste G201
West Lake Hills, TX 787465236
Location 3
3944 Ranch Road 620 S Ste 202
Austin, TX 787387166
Location 4
3101 Highway 71 E Ste 210
Bastrop, TX 786025157
Location 5
200 Sydney Blvd
Thorndale, TX 765775432
Location 6
5625 Eiger Rd Ste 125
Austin, TX 787358979
Location 7
11762 Jollyville Rd
Austin, TX 787593937
Location 8
1640 Highland Falls Dr Ste 601
Leander, TX 786414842
Location 9
6611 River Place Blvd Ste 100
Austin, TX 787301163
Specialties
-
Allergy & Immunology PrimaryAn allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and...
-
PediatricsA pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment...
Practice context
Part of a multi-provider practice. 3 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.