NPI Portal NPI Lookup & Verification

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

Ms. Janelle Victoria Litwak, MS MFT

Marriage & Family Therapist in Pasadena, CA · enumerated 2007 · practices at Janelle Litwak, Mft.

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

National Provider Identifier

1417142936

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Registry record

Entity type Individual (Type 1)
Name Ms. Janelle Victoria Litwak
Credential MS MFT
Sex Female
Practice address Pasadena, CA, 91101
Phone (626) 710-0143
Fax (866) 401-2658
Enumeration date Sep 7, 2007
Last updated in NPPES Sep 7, 2007

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

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License CALMFT40387 (CA) Primary

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

What is the NPI number for Janelle Litwak?
The National Provider Identifier (NPI) for Janelle Litwak is 1417142936, a Type 1 (individual) record in the CMS NPPES registry.
Where does Janelle Litwak practice?
The practice location on file with NPPES is in Pasadena, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-07.