Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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MS. Mari Yao, CCC-SLP

Individual provider Speech-Language Pathologist · NPI 1659229391

MS. Mari Yao, CCC-SLP is a Speech-Language Pathologist in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2026
What do these letters mean?
CCC-SLP — Certificate of Clinical Competence in Speech-Language Pathology
A speech-language pathologist certified by ASHA.

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Practice location Address checks out

5120 Diamond Heights Blvd Apt B
San Francisco, CA 94131-1890
Phone: (415) 264-0398
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence SP15323 (CA)

Record details

NPI number1659229391
Entity typeIndividual (Type 1)
GenderFemale
Credentials CCC-SLP
Sole proprietorYes
NPI enumeratedMarch 18, 2026
Last updated in NPPESMarch 18, 2026
Certification dateMarch 18, 2026

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