NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Karen Ann Jacka

Clinical Social Worker in Lodi, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1790908788

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Karen Ann Jacka
Sex Female
Practice address Lodi, CA, 95240
Phone (209) 483-6474
Fax (209) 367-4696
Enumeration date Apr 10, 2007
Last updated in NPPES Aug 27, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCS16470 (CA) Primary

Other identifiers

Identifier Type State Issuer
3810106 Other CA PROVIDER # AETNA
48809 Other CA PRIVIDER NUMBER MHN
A881670 Other CA VALUE OPITIONS VENDOR NUM
62-79934 Other CA PROV. NO.UNITED HEALTH CA

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Karen Jacka?
Karen Jacka is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-27.