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MIDWEST ONCOLOGY HEMATOLOGY LTD
NPI 1477691640
Internal Medicine - Hematology & Oncology in Elgin, IL

Active since February 01, 2007
1600 N RANDALL RD, STE. 115, ELGIN, IL 60123(847) 717-6860(847) 717-6872 Get Directions Write a Review

NPPES record last updated: January 23, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Midwest Oncology Hematology Ltd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MIDWEST ONCOLOGY HEMATOLOGY LTD (NPI 1477691640) is a healthcare organization registered as a hematology & oncology in Elgin, Illinois and active in the NPI registry since February 2007. The organization lists Thomas Lequn Cao, Owner, as its authorized official.

NPPES Registry Identity

NPI1477691640
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameMIDWEST ONCOLOGY HEMATOLOGY LTD
Location Address1600 N RANDALL RD, STE. 115Elgin, IL 60123-2306
Mailing Address1600 N Randall Rd, Ste. 115Elgin, IL 60123-7803 · (847) 717-6860 · Fax (847) 717-6872
Phone(847) 717-6860
Fax(847) 717-6872
Organization SubpartNo
Authorized OfficialThomas Lequn CaoOwner · (847) 717-6860
Enumeration DateFebruary 1, 2007
Last NPPES UpdateJanuary 23, 2014
✔ NPI 1477691640 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in IL · 036098274
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
1600 N RANDALL RD, Elgin, IL 60123
Open in Google Maps ↗

Other Identifiers 4

Other04528012IL · Bcbs Of Il
Medicare ID-Type Unspecified209037IL · Mcare Group # Loc15
Medicare ID-Type Unspecified200912IL · Mcare Grp # Loc16
Medicare ID-Type UnspecifiedCJ2553IL · Rail Road Grp #

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Midwest Oncology Hematology Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Midwest Oncology Hematology Ltd, which bills Medicare for the services this clinician delivers.

Clinician (1)

Thomas Cao, MD
Internal Medicine
NPI 1194797266
1435 NORTH RANDALL ROAD SUITE 402
Elgin, IL 60123
(847) 717-6860
✔ PECOS✔ Accepts Medicare0.4 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Midwest Oncology Hematology Ltd's NPI number?

The NPI number for Midwest Oncology Hematology Ltd is 1477691640. It was assigned to this organization in the NPPES registry on February 1, 2007.

Where is Midwest Oncology Hematology Ltd located?

Midwest Oncology Hematology Ltd is located at 1600 N Randall Rd Ste. 115, Elgin, IL 60123. The listed phone number is (847) 717-6860.

What is Midwest Oncology Hematology Ltd's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Midwest Oncology Hematology Ltd enrolled in Medicare?

Yes. Midwest Oncology Hematology Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Midwest Oncology Hematology Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Midwest Oncology Hematology Ltd. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Midwest Oncology Hematology Ltd was last updated on January 23, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.