Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

City of Philadelphia

Q: What is the NPI number for City of Philadelphia?

The NPI for City of Philadelphia is 1689688798, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Medical Laboratory in Phila, PA · enumerated 2006 · authorized official Christine Gaddy, Billing Manager.

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

National Provider Identifier

1689688798

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Registry record

Entity type Organization (Type 2)

Legal business name City of Philadelphia

Other name <Unavail>

Practice address 500 S Broad St Fl 3, Phila, PA, 19146

Phone (215) 685-6812

Enumeration date Jul 27, 2006

Last updated in NPPES Jun 11, 2019

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 39D0657854 (PA) Primary

Authorized official

Name Christine Gaddy

Title Billing Manager

Phone (215) 685-6843

Other identifiers

Identifier	Type	State	Issuer
398264	Other	PA	HIGHMARK BLUE SHIELD
0088763201	Medicaid	PA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for City of Philadelphia?

The NPI for City of Philadelphia is 1689688798, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for City of Philadelphia?

NPPES lists Christine Gaddy (Billing Manager) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-11.