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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marcus Clark

Assistant Behavior Analyst in Columbia, MD · enumerated 2025.

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

National Provider Identifier

1528850385

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Registry record

Entity type Individual (Type 1)
Name Marcus Clark
Sex X
Practice address 7090 Samuel Morse Dr Ste 100-300, Columbia, MD, 21046
Phone (855) 935-3691
Enumeration date May 19, 2025
Last updated in NPPES May 19, 2025

Taxonomy & licenses

106E00000X Assistant Behavior Analyst Behavioral Health & Social Service Providers Primary

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 1528850385 active?
Yes, as of the latest NPPES snapshot, NPI 1528850385 is active (record last updated 2025-05-19).
How do I verify Marcus Clark's NPI record?
Cross-check NPI 1528850385 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 2025-05-19.