Headdox Inc

Headdox Inc is a healthcare organization registered as Physiological Laboratory in Chicago, IL, holding Type 2 (organization) NPI 1871212449 since 2022. The authorized official on file is Frank Gray, Director.

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NPI	1871212449
Entity type	Organization (Type 2)
Legal business name	Headdox Inc
Practice address	2625 N CLARK ST UNIT 1S, Chicago, IL, 60614
Phone	8442125321
Fax	2145949559
Enumeration date	2022-08-25
Last updated in NPPES	2022-08-25

Authorized official

Name	Frank Gray
Title	Director
Phone	8442125321

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
293D00000X	Physiological Laboratory	Primary	—	—

Copy-ready billing details

Provider: Headdox Inc
NPI: 1871212449
Taxonomy: 293D00000X (Physiological Laboratory)
Address: 2625 N CLARK ST UNIT 1S, Chicago, IL, 60614

Verify this record

Cross-check NPI 1871212449 against the authoritative CMS record: view Headdox Inc on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-08-25. Verify at npiregistry.cms.hhs.gov.

Where is Headdox Inc located?

The practice location on file with NPPES is in Chicago, IL.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2022-08-25.