Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Isaac Friedman

Physician Assistant in Park Ridge, IL · enumerated 2021 · practices at Illinois Bone and Joint Institute LLC.

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

National Provider Identifier

1255910402

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Registry record

Entity type Individual (Type 1)

Name Isaac Friedman

Sex Male

Practice address 250 S Northwest Hwy Ste 100, Park Ridge, IL, 60068

Phone (773) 631-7898

Fax (773) 631-3005

Enumeration date Apr 5, 2021

Last updated in NPPES Mar 29, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085-009813 (IL) Primary

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 Isaac Friedman?

The National Provider Identifier (NPI) for Isaac Friedman is 1255910402, a Type 1 (individual) record in the CMS NPPES registry.

Where does Isaac Friedman practice?

The practice location on file with NPPES is in Park Ridge, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-29.