Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marc Harrison
Social Worker in Tarentum, PA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437783511
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Marc Harrison
Sex Male
Practice address 702 2nd Ave, Tarentum, PA, 15084
Phone (724) 230-3240
Enumeration date Feb 27, 2020
Last updated in NPPES Feb 27, 2020
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 1437783511 active?
Yes, as of the latest NPPES snapshot, NPI 1437783511 is active (record last updated 2020-02-27).
How do I verify Marc Harrison's NPI record?
Cross-check NPI 1437783511 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Frederick Doerfler Internal Medicine Physician · Tarentum, PA NPI 1801873815 Amanda Petrunak Social Worker · Tarentum, PA NPI 1851675375 Cynthia Wimer Registered Nurse · Tarentum, PA NPI 1609124163 Victoria Minarik Registered Nurse · Tarentum, PA NPI 1356699813 Margaret Mulhern Registered Nurse · Tarentum, PA NPI 1477801959 Mary Hart Registered Nurse · Tarentum, PA NPI 1083962377 Pearl Walch Licensed Practical Nurse · Tarentum, PA NPI 1538401500 Lisa Drum Registered Nurse · Tarentum, PA NPI 1376984393
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-27.