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Dr. Mark Allen Davis, PSYD

Mental Health Counselor in Santa Ana, CA · enumerated 2006.

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

National Provider Identifier

1134220643

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Allen Davis
Credential PSYD
Sex Male
Practice address 401 W Civic Center Dr # 700, Santa Ana, CA, 92701
Phone (714) 480-6767
Fax (714) 568-4362
Enumeration date Sep 26, 2006
Last updated in NPPES Jun 25, 2021

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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.

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Frequently asked questions

Is NPI 1134220643 active?
Yes, as of the latest NPPES snapshot, NPI 1134220643 is active (record last updated 2021-06-25).
How do I verify Mark Davis's NPI record?
Cross-check NPI 1134220643 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-25.