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Michael S Greenbaum MD S C

Psychiatry Physician in Libertyville, IL · enumerated 2007 · authorized official Michael Greenbaum, Psychiatrist.

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

National Provider Identifier

1841311636

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Registry record

Entity type Organization (Type 2)
Legal business name Michael S Greenbaum MD S C
Practice address 31480 N Us Highway 45, Libertyville, IL, 60048
Phone (847) 680-2715
Fax (847) 680-3832
Enumeration date Apr 2, 2007
Last updated in NPPES Apr 20, 2008

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Michael Greenbaum
Title Psychiatrist
Phone (847) 680-2715

Other identifiers

Identifier Type State Issuer
1598792970 Other IL INDIVD NPI #
208723 Other IL MEDICARE GROUP ID

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 the NPI number for Michael S Greenbaum MD S C?
The NPI for Michael S Greenbaum MD S C is 1841311636, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Michael S Greenbaum MD S C?
NPPES lists Michael Greenbaum (Psychiatrist) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-20.