Mari Yao, CCC-SLP
NPI 1659229391 · Speech-Language Pathologist · San Francisco, CA
Mari Yao, CCC-SLP is a Speech-Language Pathologist provider in San Francisco, CA (NPI 1659229391).
Provider details
- NPI number
- 1659229391
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- CCC-SLP
- Sex
- Female
- Sole proprietor
- Yes
- License
- SP15323 (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
Under 1 yr in 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
- 2026-03-18
- Last updated
- 2026-03-18
- Certified
- 2026-03-18
Frequently asked questions
- What is Mari Yao's NPI number?
- Mari Yao's National Provider Identifier (NPI) is 1659229391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mari Yao's specialty?
- Mari Yao is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Mari Yao located?
- Mari Yao's practice location on file with NPPES is 5120 Diamond Heights Blvd Apt B, San Francisco, CA 94131-1890.
- What is Mari Yao's phone number?
- The practice phone number listed in the NPPES registry for Mari Yao is (415) 264-0398.
- Is Mari Yao's NPI active?
- Yes — Mari Yao's NPI (1659229391) is active in the NPPES registry as of the last update on 2026-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.