Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Irma Sommerfeld, MSW

Mental Health Counselor in Westlake Village, CA · enumerated 2016.

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

National Provider Identifier

1396190187

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Registry record

Entity type Individual (Type 1)

Name Irma Sommerfeld

Credential MSW

Sex Female

Practice address 650 Hampshire Rd Ste 200, Westlake Village, CA, 91361

Phone (805) 601-6700

Enumeration date Apr 28, 2016

Last updated in NPPES Jul 29, 2021

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
17174400000X-SPECIAL	Other	CA	MENTAL HEALTH WORKER

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

Is NPI 1396190187 active?

Yes, as of the latest NPPES snapshot, NPI 1396190187 is active (record last updated 2021-07-29).

How do I verify Irma Sommerfeld's NPI record?

Cross-check NPI 1396190187 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Kelly Nicassio Marriage & Family Therapist · Westlake Village, CA NPI 1407120371 Brooke Saul Marriage & Family Therapist · Westlake Village, CA NPI 1679011878 Katie Wren Marriage & Family Therapist · Westlake Village, CA NPI 1659831899 Irma Sommerfeld Licensed Clinical Social Worker A Professional Corp Clinical Social Worker · Westlake Village, CA NPI 1821663543 Emilie Siraki Marriage & Family Therapist · Westlake Vlg, CA NPI 1164175709 Julie L. Ross, Licensed Marriage and Family Therapist, Inc. Marriage & Family Therapist · Westlake Village, CA NPI 1972252880 Karen Alexander Marriage & Family Therapist · Westlake Village, CA NPI 1922780311 Devin Cooper Marriage & Family Therapist · Westlake Village, CA NPI 1104605690

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-29.