Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William R Otto, MD

Individual provider Allergy & Immunology Physician · NPI 1912913278

William R Otto, MD is an Allergy & Immunology Physician in Austin, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6811 Austin Center Blvd # 300
Austin, TX 78731-3166
Phone: (512) 344-0316
Fax: (512) 344-0320
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence F5680 (TX)

Record details

NPI number1912913278
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 31, 2006
Last updated in NPPESJanuary 11, 2011

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