What is Rianna Diaz's NPI number?

Rianna Diaz's National Provider Identifier (NPI) is 1720791635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Rianna Diaz's specialty?

Rianna Diaz is listed in the NPPES registry with a primary specialty of Speech-Language Assistant (Speech, Language and Hearing Service Providers).

Where is Rianna Diaz located?

Rianna Diaz's practice location on file with NPPES is 3045 Santiago St, San Francisco, CA 94116-1526.

What is Rianna Diaz's phone number?

The practice phone number listed in the NPPES registry for Rianna Diaz is (415) 759-2222.

Is Rianna Diaz's NPI active?

Yes — Rianna Diaz's NPI (1720791635) is active in the NPPES registry as of the last update on 2026-06-02.

IndividualActive

Rianna Diaz

NPI 1720791635 · Speech-Language Assistant · San Francisco, CA

Rianna Diaz is a Speech-Language Assistant provider in San Francisco, CA (NPI 1720791635).

Provider details

NPI number: 1720791635
Entity type: Individual
Primary specialty: Speech-Language AssistantSpeech, Language and Hearing Service Providers
Sex: Female
Sole proprietor: Yes
License: 8578 (CA)

Specialties & taxonomies

Speech-Language AssistantPrimary2355S0801XLicense 8578 (CA)
Speech, Language and Hearing Service Providers

Profile Score

Established profile(59/100 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
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

3045 Santiago St

San Francisco, CA 94116-1526

Phone: (415) 759-2222

Street-level locationGet directions

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Mailing address