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Advanced Care Specialist Group LLC

Neurology Physician in Chicago, IL · enumerated 2019 · authorized official Mohamad Alzein, Owner.

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

National Provider Identifier

1861956849

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Registry record

Entity type Organization (Type 2)
Legal business name Advanced Care Specialist Group LLC
Practice address 5907 W 63rd St, Chicago, IL, 60638
Phone (708) 843-3308
Fax (708) 590-6948
Enumeration date Jan 24, 2019
Last updated in NPPES Jan 24, 2019

Taxonomy & classification

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mohamad Alzein
Title Owner
Phone (708) 843-3308

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

Who is the authorized official for Advanced Care Specialist Group LLC?
NPPES lists Mohamad Alzein (Owner) as the authorized official for this organization.
What is the NPI number for Advanced Care Specialist Group LLC?
The NPI for Advanced Care Specialist Group LLC is 1861956849, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-24.