Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark L Lamers, PHD
Clinical Psychologist in Eureka, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1972636595
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark L Lamers
Credential PHD
Sex Male
Practice address 350 E St Ste 206, Eureka, CA, 95501
Phone (707) 296-3558
Enumeration date Mar 13, 2007
Last updated in NPPES Aug 27, 2024
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 21592 (CA) Secondary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY 21592 (CA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD 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
Is NPI 1972636595 active?
Yes, as of the latest NPPES snapshot, NPI 1972636595 is active (record last updated 2024-08-27).
How do I verify Mark Lamers's NPI record?
Cross-check NPI 1972636595 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 2024-08-27.