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Mark John Souris

Clinical Psychologist in Tarzana, CA · enumerated 2016 · authorized official Mark Souris, Owner.

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

National Provider Identifier

1215381918

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Registry record

Entity type Organization (Type 2)
Legal business name Mark John Souris
Practice address 18757 Burbank Blvd, Suite 125, Tarzana, CA, 91356
Phone (818) 635-9705
Fax (818) 881-5504
Enumeration date Apr 19, 2016
Last updated in NPPES Apr 19, 2016

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 14283 (CA) Primary

Authorized official

Name Mark Souris
Title Owner
Phone (818) 635-9705

Other identifiers

Identifier Type State Issuer
14283 Other CA LICENSE

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.

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Frequently asked questions

What is the NPI number for Mark John Souris?
The NPI for Mark John Souris is 1215381918, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mark John Souris?
NPPES lists Mark Souris (Owner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-19.