Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Kenneth M Johnstone, MSW

Social Worker in Citrus Heights, CA · enumerated 2007 · practices at Allied Home Health Agency, Inc..

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

National Provider Identifier

1831230549

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Registry record

Entity type Individual (Type 1)

Name Mr. Kenneth M Johnstone

Credential MSW

Sex Male

Practice address 7509 Madison Ave, B105 Ken Johnstone Lcsw Mfcc, Citrus Heights, CA, 95610

Phone (916) 967-0611

Fax (916) 967-4535

Enumeration date Feb 8, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License LCS 10780 (CA) Primary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFC9327 (CA) Secondary

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

Where does Kenneth Johnstone practice?

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

What is the NPI number for Kenneth Johnstone?

The National Provider Identifier (NPI) for Kenneth Johnstone is 1831230549, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.