Colleen Diaz, SLP
NPI 1396209458 · Speech-Language Pathologist · Santa Clara, CA
Enrolled with Medicare as Practitioner - Qualified Speech Language Pathologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Diaz, SLP is a Speech-Language Pathologist provider in Santa Clara, CA (NPI 1396209458).
Provider details
- NPI number
- 1396209458
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- SLP
- Sex
- Female
- Sole proprietor
- No
- License
- RPE12509 (CA)
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
7 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
- 2019-01-23
- Last updated
- 2022-02-04
- Certified
- 2022-02-04
Frequently asked questions
- What is Colleen Diaz's NPI number?
- Colleen Diaz's National Provider Identifier (NPI) is 1396209458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Diaz's specialty?
- Colleen Diaz is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Colleen Diaz located?
- Colleen Diaz's practice location on file with NPPES is 2851 Park Ave, Santa Clara, CA 95050-6006.
- What is Colleen Diaz's phone number?
- The practice phone number listed in the NPPES registry for Colleen Diaz is (408) 243-7861.
- Does Colleen Diaz accept Medicare?
- Colleen Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Diaz's NPI active?
- Yes — Colleen Diaz's NPI (1396209458) is active in the NPPES registry as of the last update on 2022-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.