IndividualActive
William Otto, MD
NPI 1912913278 · Allergy & Immunology Physician · Austin, TX
William Otto, MD is a Allergy & Immunology Physician provider in Austin, TX (NPI 1912913278).
Provider details
- NPI number
- 1912913278
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- F5680 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
6811 Austin Center Blvd # 300
Austin, TX 78731-3166
Phone: (512) 344-0316
Fax: (512) 344-0320
Street-level locationGet directions
Mailing address
Po Box 26726
Austin, TX 78755-0726
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2011-01-11
Frequently asked questions
- What is William Otto's NPI number?
- William Otto's National Provider Identifier (NPI) is 1912913278, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Otto's specialty?
- William Otto is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is William Otto located?
- William Otto's practice location on file with NPPES is 6811 Austin Center Blvd # 300, Austin, TX 78731-3166.
- What is William Otto's phone number?
- The practice phone number listed in the NPPES registry for William Otto is (512) 344-0316.
- Is William Otto's NPI active?
- Yes — William Otto's NPI (1912913278) is active in the NPPES registry as of the last update on 2011-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.