Catherine Blanche Castillo
Clinical Social Worker · Garden Grove, CA
Catherine Blanche Castillo is a clinical social worker with a practice address in Garden Grove, California, and NPI 1588155170, issued on May 20, 2018. Check the license (California 22022, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Blanche Castillo
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 22022 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11301 Acacia Pkwy, Garden Grove, CA 92840
- Phone
- (714) 741-5895
- Enumerated
- May 20, 2018
- Record last updated
- May 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20250131003303); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 11301 Acacia Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Selest AlvaradoMental Health Counselor1225976939
- Corene Tague, M.A.Marriage & Family Therapist1003011701
Verify Catherine Blanche Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 22022Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sud Specialty Group - CASanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Blanche Castillo among 36,261 clinical social worker records in California
Catherine Blanche Castillo is one of 36,261 clinical social worker records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 62% of them.
- NPI issued2018 · 62% of these records are older, 33% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1995 · median 2012 among the 4,008 with a school on file
- Record last updated2018 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
89 clinical social worker records list a practice address in Garden Grove
They are 89 of the 4,572 NPPES records with a practice address in Garden Grove, and 36,261 clinical social worker records in California.
All 36,261 in California → Every provider in Garden Grove → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Griselda Alvarado, MSW, LCSWGarden Grove, CA 928401568861722
- Lisa Baker, LCSWGarden Grove, CA 928401518074996
- Elvia Diaz, L.C.S.W.Garden Grove, CA 928401871852913
- Nicole Gleeson, LCSWGarden Grove, CA 928401093059693
- Marvin Holford, LCSWGarden Grove, CA 928401669885380
- Bich-Diem Ngo, LCSWGarden Grove, CA 928401043392939
- Jena Nguyen, LCSWGarden Grove, CA 928401134402175
- Hieu Pham, LCSWGarden Grove, CA 928401003142472
Common questions
What is Catherine Blanche Castillo's NPI number?
Catherine Blanche Castillo's National Provider Identifier (NPI) is 1588155170, issued on May 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Blanche Castillo located?
The NPPES record lists a practice address at 11301 Acacia Pkwy, Garden Grove, CA, 92840. Phone: (714) 741-5895. Providers update this record themselves, so call before visiting.
How can I verify Catherine Blanche Castillo's license?
NPPES lists California license number 22022, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.