Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Oncology Clinics Inc

Hematology & Oncology Physician in Oak Park, MI · enumerated 2006 · authorized official Tosan Fregene, Director.

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

National Provider Identifier

1811937089

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Registry record

Entity type Organization (Type 2)

Legal business name Oncology Clinics Inc

Practice address 20770 Greenfield, Oak Park, MI, 48237

Phone (249) 967-8800

Enumeration date Jun 7, 2006

Last updated in NPPES Aug 29, 2018

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Tosan Fregene

Title Director

Phone (248) 967-8800

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2018-08-29. Verify at npiregistry.cms.hhs.gov.

Where is Oncology Clinics Inc located?

The practice location on file with NPPES is in Oak Park, MI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-29.