Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

City Lab Inc

Q: What is the NPI number for City Lab Inc?

The NPI for City Lab Inc is 1073917969, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Medical Laboratory in Skokie, IL · enumerated 2014 · authorized official Shams Siddiqui, President.

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

National Provider Identifier

1073917969

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Registry record

Entity type Organization (Type 2)

Legal business name City Lab Inc

Practice address 3415 Howard St Ste 102, Skokie, IL, 60076

Phone (847) 324-9132

Fax (847) 324-9134

Enumeration date Oct 21, 2014

Last updated in NPPES Dec 11, 2014

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 14D2083891 (IL) Primary

Authorized official

Name Shams Siddiqui

Title President

Phone (847) 324-9132

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

Who is the authorized official for City Lab Inc?

NPPES lists Shams Siddiqui (President) as the authorized official for this organization.

What is the NPI number for City Lab Inc?

The NPI for City Lab Inc is 1073917969, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-11.