Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Rene Lewellyn, M.A, MFT

Marriage & Family Therapist in Brentwood, CA · enumerated 2007.

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

National Provider Identifier

1003962564

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Registry record

Entity type Individual (Type 1)

Name Ms. Rene Lewellyn

Credential M.A, MFT

Sex Female

Practice address 1210 Central Blvd, Suite 122, Brentwood, CA, 94513

Phone (925) 634-3821

Enumeration date Jan 26, 2007

Last updated in NPPES Mar 1, 2011

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFC42173 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
09064	Other	CA	CCC MEDI-CAL

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 Rene Lewellyn?

The National Provider Identifier (NPI) for Rene Lewellyn is 1003962564, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rene Lewellyn practice?

The practice location on file with NPPES is in Brentwood, 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 2011-03-01.