David Preston
NPI 1740123298 · Speech-Language Assistant · San Tan Valley, AZ
David Preston is a Speech-Language Assistant provider in San Tan Valley, AZ (NPI 1740123298).
Provider details
- NPI number
- 1740123298
- Entity type
- Individual
- Primary specialty
- Speech-Language AssistantSpeech, Language and Hearing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- SLPA15205 (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
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 460 S. Park St.Florence, AZ 85132Phone: (520) 866-3540
Registry dates
- Enumerated
- 2026-04-10
- Last updated
- 2026-04-10
- Certified
- 2026-04-03
Frequently asked questions
- What is David Preston's NPI number?
- David Preston's National Provider Identifier (NPI) is 1740123298, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Preston's specialty?
- David Preston is listed in the NPPES registry with a primary specialty of Speech-Language Assistant (Speech, Language and Hearing Service Providers).
- Where is David Preston located?
- David Preston's practice location on file with NPPES is 28682 N Main St, San Tan Valley, AZ 85143-6465.
- What is David Preston's phone number?
- The practice phone number listed in the NPPES registry for David Preston is (480) 888-7500.
- Is David Preston's NPI active?
- Yes — David Preston's NPI (1740123298) is active in the NPPES registry as of the last update on 2026-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.