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

Ms. Joan Marie Macmillan, MFT

Mental Health Counselor in Citrus Hts, CA · enumerated 2006.

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

National Provider Identifier

1629088067

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Joan Marie Macmillan

Credential MFT

Sex Female

Practice address Citrus Hts, CA, 95610

Phone (916) 967-0991

Fax (916) 967-4080

Enumeration date Aug 8, 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

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License MFC17450 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
MHN ID 067243	Other	CA	PROVIDER MHN ID #

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

Is NPI 1629088067 active?

Yes, as of the latest NPPES snapshot, NPI 1629088067 is active (record last updated 2007-07-08).

How do I verify Joan Macmillan's NPI record?

Cross-check NPI 1629088067 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.