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

Patricia Eileen Lyons, M.F.T.

Marriage & Family Therapist in San Rafael, CA · enumerated 2007 · practices at County of Marin.

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

National Provider Identifier

1427115591

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Registry record

Entity type Individual (Type 1)

Name Patricia Eileen Lyons

Credential M.F.T.

Sex Female

Practice address San Rafael, CA, 94903

Phone (415) 473-7083

Enumeration date Jan 1, 2007

Last updated in NPPES Nov 11, 2015

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 MFC 34536 (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

Where does Patricia Lyons practice?

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

What is the NPI number for Patricia Lyons?

The National Provider Identifier (NPI) for Patricia Lyons is 1427115591, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-11.