Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Healthlink Diagnostics, LLC

Sleep Disorder Diagnostic Clinic/Center in Johnson City, TN · enumerated 2012 · authorized official Edward Steffner, Ceo.

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

National Provider Identifier

1225373905

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Registry record

Entity type Organization (Type 2)

Legal business name Healthlink Diagnostics, LLC

Practice address 119 E King St, Suite 212, Johnson City, TN, 37601

Phone (423) 232-5200

Fax (800) 787-9701

Enumeration date Dec 6, 2012

Last updated in NPPES Dec 6, 2012

Taxonomy & classification

261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Edward Steffner

Title Ceo

Phone (423) 232-5200

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-12-06. Verify at npiregistry.cms.hhs.gov.

Where is Healthlink Diagnostics, LLC located?

The practice location on file with NPPES is in Johnson City, TN.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-06.