Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Cherie Lynn Mills, MFT

Q: What is the NPI number for Cherie Mills?

The National Provider Identifier (NPI) for Cherie Mills is 1659591840, a Type 1 (individual) record in the CMS NPPES registry.

Marriage & Family Therapist in Tustin, CA · enumerated 2007 · practices at Insight Family Counseling and Wellness Services Inc.

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

National Provider Identifier

1659591840

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Registry record

Entity type Individual (Type 1)

Name Ms. Cherie Lynn Mills

Credential MFT

Sex Female

Practice address 228 W Main St, Tustin, CA, 92780

Phone (714) 343-7633

Fax (714) 486-1629

Enumeration date Apr 27, 2007

Last updated in NPPES Feb 12, 2026

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFC 40443 (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 Cherie Mills?

The National Provider Identifier (NPI) for Cherie Mills is 1659591840, a Type 1 (individual) record in the CMS NPPES registry.

Where does Cherie Mills practice?

The practice location on file with NPPES is in Tustin, 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 2026-02-12.