IndividualActive
Sian Stone, SLPA
NPI 1619681350 · Speech-Language Assistant · Martinez, CA
Provider details
- NPI number
- 1619681350
- Entity type
- Individual
- Primary specialty
- Speech-Language AssistantSpeech, Language and Hearing Service Providers
- Credential
- SLPA
- Sex
- Female
- Sole proprietor
- No
- License
- 4391 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
Established profile(68/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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
649 Main St # 229
Martinez, CA 94553-1137
Phone: (707) 651-9915
Street-level locationGet directions
Mailing address
955 Walnut Ave
Vallejo, CA 94592-1021
Additional practice locations (2)
- 195 Glen Cove Marina Rd EVallejo, CA 94591-7285Phone: (707) 651-9915
- 955 Walnut AveVallejo, CA 94592-1021Phone: (707) 651-9915
Registry dates
- Enumerated
- 2023-01-09
- Last updated
- 2023-01-09
- Certified
- 2023-01-08
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.