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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Arthur Zimmerman, MD, Inc

Specialist in Upland, CA · enumerated 2008 · authorized official Arthur Zimmerman, Owner.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1568637403

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Registry record

Entity type Organization (Type 2)
Legal business name Arthur Zimmerman, MD, Inc
Parent organization Arthur Zimmerman, MD, Inc
Practice address 930 E Foothill Blvd, Ste. 1, Upland, CA, 91786
Fax (909) 949-0831
Enumeration date Apr 22, 2008
Last updated in NPPES Apr 22, 2008

Taxonomy & classification

174400000X Specialist Other Service Providers · License G33927 (CA) Primary

Authorized official

Name Arthur Zimmerman
Title Owner

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 type of organization is Arthur Zimmerman, MD, Inc?
Arthur Zimmerman, MD, Inc is registered in NPPES as a Specialist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-04-22.