Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marc D Hroncich, PT,DPT
Physical Therapist in Greenlawn, NY · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457489379
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Registry record
Entity type Individual (Type 1)
Name Marc D Hroncich
Credential PT,DPT
Sex Male
Practice address 266 East Pulaski Road, Suite 3, Greenlawn, NY, 11740
Phone (631) 673-4600
Fax (631) 673-4621
Enumeration date Mar 1, 2007
Last updated in NPPES Aug 24, 2009
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 026582 (NY) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
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 1457489379 active?
Yes, as of the latest NPPES snapshot, NPI 1457489379 is active (record last updated 2009-08-24).
How do I verify Marc Hroncich's NPI record?
Cross-check NPI 1457489379 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 2009-08-24.