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

Stephen Michael Guidi, MFT

Marriage & Family Therapist in Aliso Viejo, CA · enumerated 2009 · practices at Richard L. Botzbach II Dental Corporation.

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

National Provider Identifier

1336377183

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Registry record

Entity type Individual (Type 1)

Name Stephen Michael Guidi

Credential MFT

Sex Male

Practice address Aliso Viejo, CA, 92656

Phone (949) 305-8597

Fax (949) 699-3405

Enumeration date Jun 30, 2009

Last updated in NPPES Jun 30, 2009

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 46956 (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

Where does Stephen Guidi practice?

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

What is the NPI number for Stephen Guidi?

The National Provider Identifier (NPI) for Stephen Guidi is 1336377183, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Richard L. Botzbach II Dental Corporation Orthodontics and Dentofacial Orthopedics Dentistry · Aliso Viejo, CA NPI 1467775122

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-30.