Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Karen Michelle Lottman, LCSW

Clinical Social Worker in Berkeley, CA · enumerated 2006 · practices at Jewish Family & Community Services East Bay.

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

National Provider Identifier

1457464224

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Registry record

Entity type Individual (Type 1)

Name Ms. Karen Michelle Lottman

Credential LCSW

Sex Female

Practice address 2484 Shattuck Ave, Ste 210, Berkeley, CA, 94704

Phone (510) 704-7480

Fax (510) 704-7494

Enumeration date Aug 16, 2006

Last updated in NPPES Mar 16, 2018

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 20651 (CA) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
6887	Medicaid	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 Lottman?

Karen Lottman 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-16.