Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Joel S. Rosen, MD, Inc

Rehabilitation Hospital Unit in Northridge, CA · enumerated 2009 · authorized official Shirley Johnson, Biller.

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

National Provider Identifier

1942444302

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Registry record

Entity type Organization (Type 2)

Legal business name Joel S. Rosen, MD, Inc

Practice address 18300 Roscoe Blvd, Ifl 4th Floor, Northridge, CA, 91325

Phone (818) 558-8342

Fax (818) 727-1451

Enumeration date Apr 28, 2009

Last updated in NPPES Jul 16, 2009

Taxonomy & classification

273Y00000X Rehabilitation Hospital Unit Hospital Units · License G013193 (CA) Primary

Authorized official

Name Shirley Johnson

Title Biller

Phone (818) 885-5342

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 Joel S. Rosen, MD, Inc located?

The practice location on file with NPPES is in Northridge, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-07-16. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-16.