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

Mr. Randall Lewis Sinclair, MFT

Marriage & Family Therapist in Victorville, CA · enumerated 2006.

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

National Provider Identifier

1871684456

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Registry record

Entity type Individual (Type 1)

Name Mr. Randall Lewis Sinclair

Credential MFT

Sex Male

Practice address Victorville, CA, 92395

Phone (760) 843-0506

Fax (760) 843-0507

Enumeration date Sep 27, 2006

Last updated in NPPES Jul 8, 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 MFC33232 (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 Randall Sinclair?

The National Provider Identifier (NPI) for Randall Sinclair is 1871684456, a Type 1 (individual) record in the CMS NPPES registry.

Where does Randall Sinclair practice?

The practice location on file with NPPES is in Victorville, 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 2007-07-08.