Registry data as of Aug 27, 2026

Rianna Diaz

Speech-Language Assistant · San Francisco, CA

Rianna Diaz is a speech-language assistant with a practice address in San Francisco, California, and NPI 1720791635, issued on Jan 5, 2023. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1720791635
Name
Rianna Diaz
Primary taxonomy
Speech-Language Assistant 2355S0801X
Practice location
3045 Santiago St, San Francisco, CA 94116
Phone
(415) 759-2222
Enumerated
Jan 5, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3045 Santiago St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Abbott, MA, EDSSchool Psychologist1831020916
  2. Clara AdamsSpeech-Language Pathologist1497686547
  3. Alejandro AguirreSchool Psychologist1578495099
  4. Nicole Aweti, CCC-SLPSpeech-Language Pathologist1942133061
  5. Susan Bailey, COTAPediatric Occupational Therapist1558293746
  6. Rachel Barton, MSWClinical Social Worker1083546071

Verify Rianna Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Speech-Language Assistant providers in California

There are 2,575 speech-language assistant records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,575 in California → Every provider in San Francisco →

Other speech-language assistant records in California

  1. Raja AbbasLos Angeles, CA1982482501
  2. Thessa Abellera, SLPAReseda, CA1023628757
  3. Gabriella Abramson, CCC-SLPASan Diego, CA1558109983
  4. Jezika AbrewOntario, CA1669143426
  5. Ula AbsulioEncino, CA1760863815
  6. Escarlet AcabalVan Nuys, CA1396402988
  7. Elizabeth AccomandoRiverside, CA1467170852
  8. Eva AcevedoModesto, CA1962392647
  9. John AcevedoFontana, CA1871228106
  10. Jennifer AcostaEncino, CA1679817407

Common questions

What is Rianna Diaz's NPI number?

Rianna Diaz's National Provider Identifier (NPI) is 1720791635, issued on Jan 5, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Rianna Diaz located?

The NPPES record lists a practice address at 3045 Santiago St, San Francisco, CA, 94116. Phone: (415) 759-2222. Providers update this record themselves, so call before visiting.

How can I verify Rianna Diaz's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.