Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Joel R Leff Mdsc

Q: What is the NPI number for Joel R Leff Mdsc?

The NPI for Joel R Leff Mdsc is 1225222672, a Type 2 (organization) record in the CMS NPPES registry.

Psychiatry Physician in Palos Heights, IL · enumerated 2007 · authorized official Joel Leff, Psychiatrist.

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

National Provider Identifier

1225222672

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Registry record

Entity type Organization (Type 2)

Legal business name Joel R Leff Mdsc

Practice address 7350 W College Dr, Suite 106, Palos Heights, IL, 60463

Phone (708) 361-5110

Fax (708) 361-5305

Enumeration date Aug 29, 2007

Last updated in NPPES Aug 29, 2007

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Joel Leff

Title Psychiatrist

Phone (708) 361-5110

Other identifiers

Identifier	Type	State	Issuer
21609141	Other	IL	BLUE CROSS BLUE SHIELD

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 the NPI number for Joel R Leff Mdsc?

The NPI for Joel R Leff Mdsc is 1225222672, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Joel R Leff Mdsc?

NPPES lists Joel Leff (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 2007-08-29.