Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

United Diagnostic Services LLC

Q: What type of organization is United Diagnostic Services LLC?

United Diagnostic Services LLC is registered in NPPES as a Diagnostic Ultrasound Physician (its primary provider taxonomy).

Diagnostic Ultrasound Physician in Merrillville, IN · enumerated 2012 · authorized official Zafer Khan, Director.

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

National Provider Identifier

1972866184

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Registry record

Entity type Organization (Type 2)

Legal business name United Diagnostic Services LLC

Practice address 5304 Broadway, Merrillville, IN, 46410

Phone (224) 636-3637

Enumeration date Jun 21, 2012

Last updated in NPPES Jun 21, 2012

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians Secondary

247100000X Radiologic Technologist Technologists, Technicians & Other Technical Service Providers Secondary

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Zafer Khan

Title Director

Phone (224) 636-3637

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 United Diagnostic Services LLC?

United Diagnostic Services LLC is registered in NPPES as a Diagnostic Ultrasound Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-21.