Individual provider · Type 1 NPI

Karla Abigail Islas-Kostszewa

Clinical Social Worker · Garden Grove, CA

NPI number 1346750650 Active

Practice location

10331 Stanford Ave
Garden Grove, CA 92840-6351

Call (714) 663-6000 Map

Mailing address

PO Box 845
Los Alamitos, CA 90720-0845

Other practice locations

  • PO Box 845, Los Alamitos, CA 90720-0845 · (949) 385-0092

Specialties and licenses

TaxonomyCodeLicense
Social Worker 104100000XASW77339 (CA)
Mental Health Counselor 101YM0800XNone listed
Clinical Social Worker Primary 1041C0700X96754 (CA)

Clinical Social Worker: A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpers…

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About NPI 1346750650

Karla Abigail Islas-Kostszewa's National Provider Identifier is 1346750650, issued on Oct 2, 2017. The primary taxonomy on file is Clinical Social Worker (1041C0700X), and the practice location is in Garden Grove, CA. The record was last updated on May 18, 2026.