NPI age
19 years
Enumerated 2006-07-31
● Active
Type 1 · Individual
William R Otto, MD
Otto is 1 of 44 allergy & immunology providers in Austin and 1 of 506 in Texas.
Primary specialty
Allergy & Immunology
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2011-01-11
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
19 years
≈ at median (19 yr)
State licenses
1 state
9% of peers hold multiple states
Subspecialties
0
28% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-07Enumerated in NPPES
2006
2026
Where they practice
Practice location
6811 Austin Center Blvd # 300
Austin, TX 787313166
Mailing address
Po Box 26726
Austin, TX 787550726
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...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 118027502 | |
| 05 (TX) | 030001586 | |
| 05 (TX) | 118027504 |
Practice context
Part of a multi-provider practice. 8 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 →
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