Clare Trethowan
NPI 1356235311 · Speech-Language Pathologist · San Diego, CA
Clare Trethowan is a Speech-Language Pathologist provider in San Diego, CA (NPI 1356235311).
Provider details
- NPI number
- 1356235311
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Sex
- Female
- Sole proprietor
- No
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
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-06-04
- Last updated
- 2025-07-24
- Certified
- 2025-07-24
Frequently asked questions
- What is Clare Trethowan's NPI number?
- Clare Trethowan's National Provider Identifier (NPI) is 1356235311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clare Trethowan's specialty?
- Clare Trethowan is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Clare Trethowan located?
- Clare Trethowan's practice location on file with NPPES is 4010 Morena Blvd Ste 103, San Diego, CA 92117-4547.
- What is Clare Trethowan's phone number?
- The practice phone number listed in the NPPES registry for Clare Trethowan is (619) 356-1315.
- Is Clare Trethowan's NPI active?
- Yes — Clare Trethowan's NPI (1356235311) is active in the NPPES registry as of the last update on 2025-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.