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MACOMB ONCOLOGY INSTITUTE LTD
NPI 1982857827
Radiology - Radiation Oncology in Macomb, IL

Active since October 23, 2008
401 EAST GRANT STREET, MACOMB, IL 61455(309) 836-8400(309) 836-8440 Get Directions Write a Review

NPPES record last updated: February 9, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 9, 2023, May 7, 2020 (2 updates tracked since 2020).

About Macomb Oncology Institute Ltd NPPES

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

MACOMB ONCOLOGY INSTITUTE LTD (NPI 1982857827) is a healthcare organization registered as a radiation oncology in Macomb, Illinois and active in the NPI registry since October 2008. The organization lists Jacqueline Lam Yuen, Administrator, as its authorized official.

NPPES Registry Identity

NPI1982857827
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NameMACOMB ONCOLOGY INSTITUTE LTD
Location Address401 EAST GRANT STREETMacomb, IL 61455
Mailing AddressPo Box 483Litchfield, IL 62056-0483 · (217) 324-1100 · Fax (217) 324-1103
Phone(309) 836-8400
Fax(309) 836-8440
Organization SubpartNo
Authorized OfficialJacqueline Lam YuenAdministrator · (217) 324-1100
Enumeration DateOctober 23, 2008
Last NPPES UpdateFebruary 9, 20232 updates tracked since enumeration
NPPES CertifiedFebruary 9, 2023
✔ NPI 1982857827 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
401 EAST GRANT STREET, Macomb, IL 61455
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Other Identifiers 1

OtherDP0725IL · Railroad Medicare Ptan

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Macomb Oncology Institute Ltd, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Saleem Mahmood, MD
Radiation Oncology
NPI 1679677678
1201 E UNION AVE
Litchfield, IL 62056
(217) 324-1100
✔ PECOS102 mi
Mohamed Megahy, M.D., PH.D.
Radiation Oncology
NPI 1548252752
1201 E UNION AVE
Litchfield, IL 62056
(217) 324-1100
✔ PECOS102 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 Macomb Oncology Institute Ltd's NPI number?

The NPI number for Macomb Oncology Institute Ltd is 1982857827. It was assigned to this organization in the NPPES registry on October 23, 2008.

Where is Macomb Oncology Institute Ltd located?

Macomb Oncology Institute Ltd is located at 401 East Grant Street, Macomb, IL 61455. The listed phone number is (309) 836-8400.

What is Macomb Oncology Institute Ltd's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Macomb Oncology Institute Ltd enrolled in Medicare?

Yes. Macomb Oncology Institute Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Macomb Oncology Institute Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Radiation Oncology, reassign their Medicare billing to Macomb Oncology Institute 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.

What insurance does Macomb Oncology Institute Ltd accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Macomb Oncology Institute Ltd as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Macomb Oncology Institute Ltd was last updated on February 9, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.