Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Anastasia Marsden
Social Worker in Lowell, MA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669956751
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Registry record
Entity type Individual (Type 1)
Name Anastasia Marsden
Sex Female
Practice address 72 Pentucket Ave, Lowell, MA, 01852
Phone (978) 314-5145
Enumeration date Sep 24, 2018
Last updated in NPPES Sep 24, 2018
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 1031951 (MA) 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.
Frequently asked questions
Is NPI 1669956751 active?
Yes, as of the latest NPPES snapshot, NPI 1669956751 is active (record last updated 2018-09-24).
How do I verify Anastasia Marsden's NPI record?
Cross-check NPI 1669956751 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 2018-09-24.