Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kristen Marchak I
Social Worker in Hazleton, PA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720271661
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Kristen Marchak I
Sex Female
Practice address 88 S Laurel St, Hazleton, PA, 18201
Phone (570) 455-2139
Enumeration date Aug 23, 2007
Last updated in NPPES Aug 23, 2007
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License SW123070 (PA) 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 1720271661 active?
Yes, as of the latest NPPES snapshot, NPI 1720271661 is active (record last updated 2007-08-23).
How do I verify Kristen Marchak's NPI record?
Cross-check NPI 1720271661 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 2007-08-23.