Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Direct Diagnostic Services, LLC

Physiological Laboratory in Charleston, SC · enumerated 2008 · authorized official Pamela Queen, Member Manager.

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

National Provider Identifier

1801040274

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Direct Diagnostic Services, LLC

Practice address 4 Carriage Ln Ste 108, Charleston, SC, 29407

Phone (828) 396-5634

Fax (888) 818-8707

Enumeration date Nov 11, 2008

Last updated in NPPES May 5, 2021

Taxonomy & classification

261QR0200X Radiology Clinic/Center Ambulatory Health Care Facilities Secondary

293D00000X Physiological Laboratory Laboratories Primary

Authorized official

Name Pamela Queen

Title Member Manager

Phone (828) 396-5634

Other identifiers

Identifier	Type	State	Issuer
8105053	Medicaid	NC	-
SL0105	Medicaid	SC	-

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Direct Diagnostic Services, LLC?

Direct Diagnostic Services, LLC is registered in NPPES as a Physiological Laboratory (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-05.