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Ultimate Care Oncology

Medical Oncology Physician in Chicago, IL · enumerated 2009 · authorized official Ahmad Jajeh, Oncology & Hematology.

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

National Provider Identifier

1184859183

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Registry record

Entity type Organization (Type 2)
Legal business name Ultimate Care Oncology
Practice address 5611 W Belmont Ave, Chicago, IL, 60634
Phone (773) 770-6400
Fax (773) 385-5375
Enumeration date May 19, 2009
Last updated in NPPES May 19, 2009

Taxonomy & classification

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary
207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ahmad Jajeh
Title Oncology & Hematology
Phone (773) 770-6400

Other identifiers

Identifier Type State Issuer
036082665 Medicaid IL -

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

Who is the authorized official for Ultimate Care Oncology?
NPPES lists Ahmad Jajeh (Oncology & Hematology) as the authorized official for this organization.
What is the NPI number for Ultimate Care Oncology?
The NPI for Ultimate Care Oncology is 1184859183, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-19.