Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Doctors Diagnostic Services, Inc.

Internal Medicine Physician in Chicago Ridge, IL · enumerated 2011 · authorized official Moqueet Syed, President.

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

National Provider Identifier

1770872806

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Registry record

Entity type Organization (Type 2)

Legal business name Doctors Diagnostic Services, Inc.

Practice address 9830 Ridgeland Ave, Ste 3c, Chicago Ridge, IL, 60415

Phone (630) 440-7786

Enumeration date Mar 29, 2011

Last updated in NPPES Mar 29, 2011

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036.084938 (IL) Primary

Authorized official

Name Moqueet Syed

Title President

Phone (630) 440-7786

Other identifiers

Identifier	Type	State	Issuer
036.084938	Medicaid	IL	-

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

Where is Doctors Diagnostic Services, Inc. located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-03-29. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-29.