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Southern Illinois Oncology & Hematology Ltd

Hematology & Oncology Physician in Marion, IL · enumerated 2007 · authorized official Alberto Cuartas, MD.

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

National Provider Identifier

1588786339

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Registry record

Entity type Organization (Type 2)
Legal business name Southern Illinois Oncology & Hematology Ltd
Practice address 3008 Civic Circle Blvd, Marion, IL, 62959
Phone (607) 324-2340
Enumeration date Apr 4, 2007
Last updated in NPPES Jan 28, 2021

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 036098622 (IL) Primary

Authorized official

Name Alberto Cuartas
Title MD
Phone (618) 993-1030

Other identifiers

Identifier Type State Issuer
10027291 Other IL BCBS OF ILLINOIS
036098622 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 Southern Illinois Oncology & Hematology Ltd?
NPPES lists Alberto Cuartas (MD) as the authorized official for this organization.
What is the NPI number for Southern Illinois Oncology & Hematology Ltd?
The NPI for Southern Illinois Oncology & Hematology Ltd is 1588786339, 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 2021-01-28.