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Medical Diagnostic Services Inc

Diagnostic Radiology Physician in Skokie, IL · enumerated 2008 · authorized official Shams Siddiqui, Ceo.

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

National Provider Identifier

1992962682

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Registry record

Entity type Organization (Type 2)
Legal business name Medical Diagnostic Services Inc
Parent organization Medical Diagnostic Services Inc
Practice address 3701 Jarvis Ave, Skokie, IL, 60076
Phone (847) 626-0800
Fax (847) 626-0819
Enumeration date May 20, 2008
Last updated in NPPES Jan 25, 2015

Taxonomy & classification

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians Secondary
335V00000X Portable X-ray and/or Other Portable Diagnostic Imaging Supplier Suppliers Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Shams Siddiqui
Title Ceo
Phone (847) 626-0800

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.

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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 Medical Diagnostic Services Inc?
Medical Diagnostic Services Inc is registered in NPPES as a Diagnostic Radiology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-25.