Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Christian K Johstoneaux, LCSW
Clinical Social Worker in Heron, MT · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1215352240
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Registry record
Entity type Individual (Type 1)
Name Mr. Christian K Johstoneaux
Credential LCSW
Sex Male
Practice address 91 Clark Fork Rd, Heron, MT, 59844
Phone (406) 847-5095
Fax (406) 847-5014
Enumeration date Feb 27, 2014
Last updated in NPPES Mar 24, 2014
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6052317-3601 (UT) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License SWP-LCSW-LIC7807 (MT) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
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.
Frequently asked questions
What is the NPI number for Christian Johstoneaux?
The National Provider Identifier (NPI) for Christian Johstoneaux is 1215352240, a Type 1 (individual) record in the CMS NPPES registry.
Where does Christian Johstoneaux practice?
The practice location on file with NPPES is in Heron, MT. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-24.