Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William C Hartig

Paramedic in Philadelphia, PA · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1740670744

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Registry record

Entity type Individual (Type 1)

Name William C Hartig

Sex Male

Practice address 1700 Market St, Suite 1005, Philadelphia, PA, 19103

Phone (848) 565-4911

Enumeration date Jan 28, 2015

Last updated in NPPES Jan 28, 2015

Taxonomy & licenses

146L00000X Paramedic Emergency Medical Service Providers 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.

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Frequently asked questions

What is the NPI number for William Hartig?

The National Provider Identifier (NPI) for William Hartig is 1740670744, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Hartig practice?

The practice location on file with NPPES is in Philadelphia, PA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-28.