William Halstead
NPI 1306263017 · Speech-Language Pathologist · Gilbert, AZ
William Halstead is a Speech-Language Pathologist provider in Gilbert, AZ (NPI 1306263017).
Provider details
- NPI number
- 1306263017
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- TSLP8112 (AZ)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
Mailing address
Registry dates
- Enumerated
- 2014-03-20
- Last updated
- 2014-03-20
Frequently asked questions
- What is William Halstead's NPI number?
- William Halstead's National Provider Identifier (NPI) is 1306263017, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Halstead's specialty?
- William Halstead is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is William Halstead located?
- William Halstead's practice location on file with NPPES is 1303 W Juniper Ave Apt 3022, Gilbert, AZ 85233-4146.
- What is William Halstead's phone number?
- The practice phone number listed in the NPPES registry for William Halstead is (520) 990-0558.
- Is William Halstead's NPI active?
- Yes — William Halstead's NPI (1306263017) is active in the NPPES registry as of the last update on 2014-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.