Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Dzintra Zielinski
Social Worker in Marlborough, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871773259
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Registry record
Entity type Individual (Type 1)
Name Ms. Dzintra Zielinski
Sex Female
Practice address 221 Boston Post Rd E, Suite 150, Marlborough, MA, 01752
Phone (508) 624-0304
Enumeration date Nov 14, 2007
Last updated in NPPES Nov 14, 2007
Taxonomy & licenses
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 1871773259 active?
Yes, as of the latest NPPES snapshot, NPI 1871773259 is active (record last updated 2007-11-14).
How do I verify Dzintra Zielinski's NPI record?
Cross-check NPI 1871773259 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 2007-11-14.