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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Ralph Olav Jacobsson, LCSW

Clinical Social Worker in Riverside, CA · enumerated 2007.

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

National Provider Identifier

1841336625

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Registry record

Entity type Individual (Type 1)
Name Mr. Ralph Olav Jacobsson
Credential LCSW
Sex Male
Practice address 9707 Magnolia Ave, Riverside, CA, 92503
Phone (951) 358-5802
Fax (951) 687-3478
Enumeration date Jan 29, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCS20119 (CA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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.

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Frequently asked questions

Is NPI 1841336625 active?
Yes, as of the latest NPPES snapshot, NPI 1841336625 is active (record last updated 2007-07-08).
How do I verify Ralph Jacobsson's NPI record?
Cross-check NPI 1841336625 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.