Registry data as of Aug 27, 2026

Rosemarie Castillo

Speech-Language Assistant · Whittier, CA

Rosemarie Castillo is a speech-language assistant with a practice address in Whittier, California, and NPI 1538539358, issued on Oct 6, 2015. 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
1538539358
Name
Rosemarie Castillo
Primary taxonomy
Speech-Language Assistant 2355S0801X
Practice location
10010 Colima RD, Whittier, CA 90603
Phone
(562) 536-2029
Enumerated
Oct 6, 2015
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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Verify Rosemarie Castillo 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 →

139 speech-language assistant records list a Whittier practice address

They are 139 of the 2,836 NPPES records with a Whittier practice address, and 2,575 speech-language assistant records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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 Rosemarie Castillo's NPI number?

Rosemarie Castillo's National Provider Identifier (NPI) is 1538539358, issued on Oct 6, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Rosemarie Castillo located?

The NPPES record lists a practice address at 10010 Colima RD, Whittier, CA, 90603. Phone: (562) 536-2029. Providers update this record themselves, so call before visiting.

How can I verify Rosemarie Castillo'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.

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.