Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark E Devries, PH.D.

Clinical Neuropsychologist in Grand Rapids, MI · enumerated 2006.

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

National Provider Identifier

1265476220

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Registry record

Entity type Individual (Type 1)

Name Mark E Devries

Credential PH.D.

Sex Male

Practice address 300 68th St Se, Grand Rapids, MI, 49548

Phone (616) 455-5000

Enumeration date Jun 16, 2006

Last updated in NPPES Feb 23, 2026

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 6301008596 (MI) Primary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 6301008596 (MI) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
680D161890	Other	MI	BC/BS

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

How do I verify Mark Devries's NPI record?

Cross-check NPI 1265476220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1265476220 active?

Yes, as of the latest NPPES snapshot, NPI 1265476220 is active (record last updated 2026-02-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-23.