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

Ms. Theresa Lorraine Heyes, MFT, MA

Marriage & Family Therapist in Westlake Village, CA · enumerated 2007 · practices at Psychotherapy Office of Jodi Frey.

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

National Provider Identifier

1114129822

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Registry record

Entity type Individual (Type 1)

Name Ms. Theresa Lorraine Heyes

Credential MFT, MA

Sex Female

Practice address Westlake Village, CA, 91361

Phone (818) 312-4850

Enumeration date Jun 4, 2007

Last updated in NPPES Feb 11, 2010

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 46266 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Theresa Heyes?

The National Provider Identifier (NPI) for Theresa Heyes is 1114129822, a Type 1 (individual) record in the CMS NPPES registry.

Where does Theresa Heyes practice?

The practice location on file with NPPES is in Westlake Village, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-11.